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  • How to override loading a TImage from the object inspector (at run-time)?

    - by Mawg
    Further to my previous question, which did not get a useful answer despite a bounty, I will try rephrasing the question. Basically, when the user clicks the ellipsis in the object inspector, Delphi opens a file/open dialog. I want to replace this handling with my own, so that I can save the image's path. I would have expected that all I need to do is to derive a class from TImage and override the Assign() function, as in the following code. However, when I do the assign function is never called. So, it looks like I need to override something else, but what? unit my_Image; interface uses Classes, ExtCtrls, Jpeg, Graphics; type Tmy_Image = class(Timage) private FPicture : TPicture; protected procedure OnChange(Sender: TObject); public { Public declarations } Constructor Create(AOwner: TComponent); override; procedure SetPicture(picture : TPicture); procedure Assign(Source: TPersistent); override; published { Published declarations - available in the Object Inspector at design-time } property Picture : TPicture read FPicture write SetPicture; end; // of class Tmy_Image() procedure Register; implementation uses Controls, Dialogs; procedure Register; begin RegisterComponents('Standard', [Tmy_Image]); end; Constructor Tmy_Image.Create(AOwner: TComponent); begin inherited; // Call the parent Create method Hint := 'Add an image from a file|Add an image from a file'; // Tooltip | status bar text AutoSize := True; // Control resizes when contents change (new image is loaded) Height := 104; Width := 104; FPicture := TPicture.Create(); self.Picture.Bitmap.LoadFromResourceName(hInstance, 'picture_poperty_bmp'); end; procedure Tmy_Image.OnChange(Sender: TObject); begin Constraints.MaxHeight := Picture.Height; Constraints.MaxWidth := Picture.Width; Self.Height := Picture.Height; Self.Width := Picture.Width; end; procedure Tmy_Image.SetPicture(picture : TPicture); begin MessageDlg('Tmy_Image.SetPicture', mtWarning, [mbOK], 0); // never called end; procedure Tmy_Image.Assign(Source: TPersistent); begin MessageDlg('Tmy_Image.Assign', mtWarning, [mbOK], 0); // never called end; end.

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  • How to override puppet class arguments in child node?

    - by Jon Skarpeteig
    I'm attempting to accomplish something like the below: node 'basenode' { class { 'puppet' : disable => false, } } node 'child' inherits 'basenode' { class { 'puppet' : disable => true, } } This gives me: err: Could not retrieve catalog from remote server: Error 400 on SERVER: Duplicate definition: Class[Puppet] is already defined How can I override this setting for this single node, and still have a parameterised class?

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  • How do I override apt-get removing dependent packages?

    - by iainH
    I want to replace postfix with exim4 on my Ubuntu test server to reflect the setup I have on my production server, but apt-get and aptitude (quite understandably) insist on removing several packages that depend upon having a mail stack. However, in this case I am prepared to override apt-get's undoubted good sense as exim should fulfil all the requirements of the dependent packages, providing mail and sendmail functionality for my applications. I don't want to remove the dependent packages as there is months of effort invested and, although backed up, will be a pain to reconstruct properly.

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  • Is there a way to have Microsoft Exchange server override the from field in outgoing mail?

    - by mic.sca
    I need to know if it's possible on an exchange server to filter outgoing mail and override the from address in certain cases. We have to set up many exhange users who will only be able to access exchange through the outlook web access. All their outgoing e-mails when received from recipients outside our company should appear to be sent from a single generic address and not from the users' addresses. Anyone knows whether this is possible or not? thank you, Michele

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  • Intent and OnActivityResult causing Activity to get restart Actuomatically : Require to solve this issues

    - by Parth Dani
    i am having 20 imageview and i am having 20 button for them when i click any 1 button it gives me option to select image from gallery or camera when i select any option for example galley it will take me to the gallery and let me select image from their and let me display those images on my imageview for respective button now the problem is sometimes when i do the whole above process my activity is getting restart actuomatically and all the image which were first selected get vanished from their imageview For Refernce my code is as follow: @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.new_upload); // **************Code to get Road worthy number and VIN number value in // Shared Preference starts here************************ SharedPreferences myPrefs1 = this.getSharedPreferences("myPrefs", MODE_WORLD_READABLE); roadworthynumber = myPrefs1.getString(MY_ROADWORTHY, "Road Worthy Number"); vinnumber = myPrefs1.getString(MY_VIN, "VIN Number"); // **************Code to get Road worthy number and VIN number value in // Shared Preference ends here************************ // **************Code to create Directory AUSRWC starts // here************************ if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { cacheDir = new File(Environment.getExternalStorageDirectory() + File.separator + "AUSRWC" + File.separator); cacheDir.mkdirs(); } // **************Code to Create Directory AUSRWC ends // here************************ // *****************Assigning Button variable their Id declare in XML // file starts here***************** new_select1 = (Button) findViewById(R.id.new_select1); new_select2 = (Button) findViewById(R.id.new_select2); new_select3 = (Button) findViewById(R.id.new_select3); new_select4 = (Button) findViewById(R.id.new_select4); new_select5 = (Button) findViewById(R.id.new_select5); new_select6 = (Button) findViewById(R.id.new_select6); new_select7 = (Button) findViewById(R.id.new_select7); new_select8 = (Button) findViewById(R.id.new_select8); new_select9 = (Button) findViewById(R.id.new_select9); new_select10 = (Button) findViewById(R.id.new_select10); new_select11 = (Button) findViewById(R.id.new_select11); new_select12 = (Button) findViewById(R.id.new_select12); new_select13 = (Button) findViewById(R.id.new_select13); new_select14 = (Button) findViewById(R.id.new_select14); new_select15 = (Button) findViewById(R.id.new_select15); new_select16 = (Button) findViewById(R.id.new_select16); new_select17 = (Button) findViewById(R.id.new_select17); new_select18 = (Button) findViewById(R.id.new_select18); new_select19 = (Button) findViewById(R.id.new_select19); new_select20 = (Button) findViewById(R.id.new_select20); // *****************Assigning Button variable their Id declare in XML // file ends here***************** // *****************Assigning Image variable their Id declare in XML // file starts here***************** new_selectimage1 = (ImageView) findViewById(R.id.new_selectImage1); new_selectimage2 = (ImageView) findViewById(R.id.new_selectImage2); new_selectimage3 = (ImageView) findViewById(R.id.new_selectImage3); new_selectimage4 = (ImageView) findViewById(R.id.new_selectImage4); new_selectimage5 = (ImageView) findViewById(R.id.new_selectImage5); new_selectimage6 = (ImageView) findViewById(R.id.new_selectImage6); new_selectimage7 = (ImageView) findViewById(R.id.new_selectImage7); new_selectimage8 = (ImageView) findViewById(R.id.new_selectImage8); new_selectimage9 = (ImageView) findViewById(R.id.new_selectImage9); new_selectimage10 = (ImageView) findViewById(R.id.new_selectImage10); new_selectimage11 = (ImageView) findViewById(R.id.new_selectImage11); new_selectimage12 = (ImageView) findViewById(R.id.new_selectImage12); new_selectimage13 = (ImageView) findViewById(R.id.new_selectImage13); new_selectimage14 = (ImageView) findViewById(R.id.new_selectImage14); new_selectimage15 = (ImageView) findViewById(R.id.new_selectImage15); new_selectimage16 = (ImageView) findViewById(R.id.new_selectImage16); new_selectimage17 = (ImageView) findViewById(R.id.new_selectImage17); new_selectimage18 = (ImageView) findViewById(R.id.new_selectImage18); new_selectimage19 = (ImageView) findViewById(R.id.new_selectImage19); new_selectimage20 = (ImageView) findViewById(R.id.new_selectImage20); // ****Assigning Image variable their Id declare in XML file ends // here***************** // **************Creating Dialog to give option to user to new_select // image from gallery or from camera starts here**************** final String[] items = new String[] { "From Camera", "From Gallery" }; ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.select_dialog_item, items); AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle("select Image"); builder.setAdapter(adapter, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int item) { if (item == 0) { if (android.os.Environment.getExternalStorageState() .equals(android.os.Environment.MEDIA_MOUNTED)) { Intent intent = new Intent( MediaStore.ACTION_IMAGE_CAPTURE); File file = new File(Environment .getExternalStorageDirectory(), "/AUSRWC/picture" + ".jpg"); mImageCaptureUri = Uri.fromFile(file); try { Toast.makeText(getBaseContext(), "Click Image", Toast.LENGTH_SHORT).show(); intent.putExtra( android.provider.MediaStore.EXTRA_OUTPUT, mImageCaptureUri); intent.putExtra("return-data", true); startActivityForResult(intent, PICK_FROM_CAMERA); } catch (Exception e) { e.printStackTrace(); } } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } dialog.cancel(); } else { Intent intent = new Intent(); Toast.makeText(getBaseContext(), "Select Image", Toast.LENGTH_SHORT).show(); intent.setType("image/*"); intent.setAction(Intent.ACTION_GET_CONTENT); startActivityForResult(Intent.createChooser(intent, "Complete action using"), PICK_FROM_FILE); } } }); dialog = builder.create(); // **************Creating Dialog to give option to user to new_select // image from gallery or from camera ends here**************** final Animation animAlpha = AnimationUtils.loadAnimation(this, R.anim.anim_alpha); // Animation Code for displaying Button // Clicked. // ********************Image 1 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select1.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 1; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 1 button code ends // here******************************* // ********************Image 2 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select2.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 2; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 2 button code ends // here******************************* // ********************Image 3 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select3.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 3; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 3 button code ends // here******************************* // ********************Image 4 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select4.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 4; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 4 button code ends // here******************************* // ********************Image 5 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select5.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 5; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 5 button code ends // here******************************* // ********************Image 6 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select6.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 6; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 6 button code ends // here******************************* // ********************Image 7 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select7.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 7; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 7 button code ends // here******************************* // ********************Image 8 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select8.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 8; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 8 button code ends // here******************************* // ********************Image 9 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select9.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 9; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 9 button code ends // here******************************* // ********************Image 10 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select10.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 10; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 10 button code ends // here******************************* // ********************Image 11 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select11.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 11; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 11 button code ends // here******************************* // ********************Image 12 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select12.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 12; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 12 button code ends // here******************************* // ********************Image 13 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select13.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 13; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 13 button code ends // here******************************* // ********************Image 14 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select14.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 14; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 14 button code ends // here******************************* // ********************Image 15 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select15.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 15; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 15 button code ends // here******************************* // ********************Image 16 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select16.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 16; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 16 button code ends // here******************************* // ********************Image 17 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select17.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 17; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 17 button code ends // here******************************* // ********************Image 18 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select18.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 18; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 18 button code ends // here******************************* // ********************Image 19 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select19.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 19; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 19 button code ends // here******************************* // ********************Image 20 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select20.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 20; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 20 button code ends // here******************************* } // *************************When Back Button is Pressed code begins // here************************************* @Override public void onBackPressed() { Toast.makeText(new_upload.this, "Sorry You are not allowed to go back", Toast.LENGTH_SHORT).show(); return; } // *************************When Back Button is Pressed code ends // here************************************* // ***********************To get Path of new_selected Image code starts // here************************************ public String getRealPathFromURI(Uri contentUri) { String[] proj = { MediaStore.Images.Media.DATA }; Cursor cursor = managedQuery(contentUri, proj, null, null, null); if (cursor == null) return null; int column_index = cursor .getColumnIndexOrThrow(MediaStore.Images.Media.DATA); cursor.moveToFirst(); return cursor.getString(column_index); } // ***********************To get Path of new_selected Image code ends // here************************************ // **********************Picture obtained from the camera or from gallery // code starts here************** @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { //path = ""; Log.e("","requestCode="+requestCode); switch (requestCode){ case PICK_FROM_FILE: if (resultCode == Activity.RESULT_OK) { mImageCaptureUri = data.getData(); path = getRealPathFromURI(mImageCaptureUri); // from Gallery Log.e("", "Imagepath from gallery=" + path); if (path == null) path = mImageCaptureUri.getPath(); // from File Manager if (path != null) { dialog1 = ProgressDialog.show(new_upload.this, "", "Processing Please wait...", true); new ImageDisplayTask().execute(); } } break; case PICK_FROM_CAMERA: if (resultCode == Activity.RESULT_OK) { try { path = mImageCaptureUri.getPath(); Log.e("", "Imagepath from Camera =" + path); // bitmap = BitmapFactory.decodeFile(path); } catch (Exception e) { e.printStackTrace(); } if (path != null) { dialog1 = ProgressDialog.show(new_upload.this, "", "Processing Please wait...", true); //new ImageDisplayTask1().execute(); new ImageDisplayTask().execute(); } } break; default: } } // ********************Picture obtained from the camera or from gallery code // ends here********************************************* // ******************Image Display on Button when new_selected from gallery // Ashynch Code starts here******************************** class ImageDisplayTask extends AsyncTask<Void, Void, String> { @Override protected String doInBackground(Void... unsued) { Bitmap src = BitmapFactory.decodeFile(path); Bitmap dest = Bitmap.createBitmap(src.getWidth(), src.getHeight(), Bitmap.Config.ARGB_8888); //Bitmap dest = Bitmap.createScaledBitmap(src, src.getWidth(),src.getHeight(), true); SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss"); String dateTime = sdf.format(Calendar.getInstance().getTime()); // reading local `` String timestamp = dateTime + " " + roadworthynumber; SimpleDateFormat sdf1 = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss"); String dateTime1 = sdf1.format(Calendar.getInstance().getTime()); Imagename = dateTime1.toString().trim().replaceAll(":", "") .replaceAll("-", "").replaceAll(" ", "") + roadworthynumber + ".jpg"; Canvas cs = new Canvas(dest); Paint tPaint = new Paint(); tPaint.setTextSize(100); tPaint.setTypeface(Typeface.SERIF); tPaint.setColor(Color.RED); tPaint.setStyle(Style.FILL); cs.drawBitmap(src, 0f, 0f, null); float height = tPaint.measureText("yY"); cs.drawText(timestamp, 5f, src.getHeight() - height + 5f, tPaint); try { dest.compress(Bitmap.CompressFormat.JPEG, 70, new FileOutputStream(new File(cacheDir, Imagename))); dest.recycle(); src.recycle(); } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } return null; } @Override protected void onProgressUpdate(Void... unsued) { } @Override protected void onPostExecute(String serverresponse) { String error = "noerror"; Display currentDisplay = getWindowManager().getDefaultDisplay(); int dw = currentDisplay.getWidth(); int dh = currentDisplay.getHeight() - 100; Log.e("", "width= " + dw + " Height= " + dh); try { BitmapFactory.Options bmpFactoryOptions = new BitmapFactory.Options(); bmpFactoryOptions.inJustDecodeBounds = true; Bitmap bmp = BitmapFactory.decodeFile( Environment.getExternalStorageDirectory() + "/AUSRWC/" + Imagename, bmpFactoryOptions); int heightRatio = (int) Math.ceil(bmpFactoryOptions.outHeight / (float) dh); int widthRatio = (int) Math.ceil(bmpFactoryOptions.outWidth / (float) dw); if (heightRatio > 1 && widthRatio > 1) { if (heightRatio > widthRatio) { bmpFactoryOptions.inSampleSize = heightRatio; } else { bmpFactoryOptions.inSampleSize = widthRatio; } } bmpFactoryOptions.inJustDecodeBounds = false; bmp = BitmapFactory.decodeFile( Environment.getExternalStorageDirectory() + "/AUSRWC/" + Imagename, bmpFactoryOptions); if (buttonpressed == 1) { new_selectimage1.setImageBitmap(bmp); //Image set on ImageView } else if (buttonpressed == 2) { new_selectimage2.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 3) { new_selectimage3.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 4) { new_selectimage4.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 5) { new_selectimage5.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 6) { new_selectimage6.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 7) { new_selectimage7.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 8) { new_selectimage8.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 9) { new_selectimage9.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 10) { new_selectimage10.setImageBitmap(bmp); } else if (buttonpressed == 11) { new_selectimage11.setImageBitmap(bmp); } else if (buttonpressed == 12) { new_selectimage12.setImageBitmap(bmp); } else if (buttonpressed == 13) { new_selectimage13.setImageBitmap(bmp); } else if (buttonpressed == 14) { new_selectimage14.setImageBitmap(bmp); } else if (buttonpressed == 15) { new_selectimage15.setImageBitmap(bmp); } else if (buttonpressed == 16) { new_selectimage16.setImageBitmap(bmp); } else if (buttonpressed == 17) { new_selectimage17.setImageBitmap(bmp); } else if (buttonpressed == 18) { new_selectimage18.setImageBitmap(bmp); } else if (buttonpressed == 19) { new_selectimage19.setImageBitmap(bmp); } else if (buttonpressed == 20) { new_selectimage20.setImageBitmap(bmp); } } catch (Exc

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  • LiveView plugin template creates lots of errors?

    - by Shedo Surashu
    I'm trying to get the LiveView plugin template to work but upon import of the project into Eclipse, I already have 13 errors and 2 warnings. I have already downloaded SDK for Android 1.6 which I believe is what it requires. The errors are as follows: The method startPlugin() of type AbstractPluginService.LiveViewCallback must override a superclass method AbstractPluginService.java /com.sonyericsson.extras.liveview.plugins.PluginPreferences/src/com/sonyericsson/extras/liveview/plugins line 173 Java Problem The method stopPlugin() of type AbstractPluginService.LiveViewCallback must override a superclass method AbstractPluginService.java /com.sonyericsson.extras.liveview.plugins.PluginPreferences/src/com/sonyericsson/extras/liveview/plugins line 182 Java Problem The method onSharedPreferenceChanged(SharedPreferences, String) of type new SharedPreferences.OnSharedPreferenceChangeListener(){} must override a superclass method AbstractPluginService.java /com.sonyericsson.extras.liveview.plugins.PluginPreferences/src/com/sonyericsson/extras/liveview/plugins line 360 Java Problem The method onServiceDisconnected(ComponentName) of type new ServiceConnection(){} must override a superclass method AbstractPluginService.java /com.sonyericsson.extras.liveview.plugins.PluginPreferences/src/com/sonyericsson/extras/liveview/plugins line 345 Java Problem The method onServiceConnected(ComponentName, IBinder) of type new ServiceConnection(){} must override a superclass method AbstractPluginService.java /com.sonyericsson.extras.liveview.plugins.PluginPreferences/src/com/sonyericsson/extras/liveview/plugins line 318 Java Problem The method screenMode(int) of type AbstractPluginService.LiveViewCallback must override a superclass method AbstractPluginService.java /com.sonyericsson.extras.liveview.plugins.PluginPreferences/src/com/sonyericsson/extras/liveview/plugins line 230 Java Problem The method openInPhone(String) of type AbstractPluginService.LiveViewCallback must override a superclass method AbstractPluginService.java /com.sonyericsson.extras.liveview.plugins.PluginPreferences/src/com/sonyericsson/extras/liveview/plugins line 221 Java Problem The method run() of type SandboxPluginService.Rotator must override a superclass method SandboxPluginService.java /com.sonyericsson.extras.liveview.plugins.PluginPreferences/src/com/sonyericsson/extras/liveview/plugins/sandbox line 254 Java Problem The method onUnregistered() of type AbstractPluginService.LiveViewCallback must override a superclass method AbstractPluginService.java /com.sonyericsson.extras.liveview.plugins.PluginPreferences/src/com/sonyericsson/extras/liveview/plugins line 216 Java Problem The method run() of type SandboxPluginService.Timer must override a superclass method SandboxPluginService.java /com.sonyericsson.extras.liveview.plugins.PluginPreferences/src/com/sonyericsson/extras/liveview/plugins/sandbox line 235 Java Problem The method displayCaps(int, int) of type AbstractPluginService.LiveViewCallback must override a superclass method AbstractPluginService.java /com.sonyericsson.extras.liveview.plugins.PluginPreferences/src/com/sonyericsson/extras/liveview/plugins line 206 Java Problem The method button(String, boolean, boolean) of type AbstractPluginService.LiveViewCallback must override a superclass method AbstractPluginService.java /com.sonyericsson.extras.liveview.plugins.PluginPreferences/src/com/sonyericsson/extras/liveview/plugins line 196 Java Problem The method getPluginName() of type AbstractPluginService.LiveViewCallback must override a superclass method AbstractPluginService.java /com.sonyericsson.extras.liveview.plugins.PluginPreferences/src/com/sonyericsson/extras/liveview/plugins line 191 Java Problem and the warnings: The method getInterfaceDescriptor() from the type IPluginServiceV1.Stub.Proxy is never used locally IPluginServiceV1.java /com.sonyericsson.extras.liveview.plugins.PluginPreferences/gen/com/sonyericsson/extras/liveview line 242 Java Problem The method getInterfaceDescriptor() from the type IPluginServiceCallbackV1.Stub.Proxy is never used locally IPluginServiceCallbackV1.java /com.sonyericsson.extras.liveview.plugins.PluginPreferences/gen/com/sonyericsson/extras/liveview line 130 Java Problem These all occur fresh from the ZIP file from Sony Mobile's Developer World. No code has been changed. Any thoughts?

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  • Savable in Widget Lookup on Move Action

    - by Geertjan
    Possible from 7.3 onwards, since Widget now implements Lookup.Provider for the first time: import java.awt.Point; import java.io.IOException; import org.netbeans.api.visual.action.ActionFactory; import org.netbeans.api.visual.action.MoveProvider; import org.netbeans.api.visual.widget.LabelWidget; import org.netbeans.api.visual.widget.Scene; import org.netbeans.api.visual.widget.Widget; import org.netbeans.spi.actions.AbstractSavable; import org.openide.util.Lookup; import org.openide.util.lookup.AbstractLookup; import org.openide.util.lookup.InstanceContent; import org.openide.windows.TopComponent; public class MyWidget extends LabelWidget { private MySavable mySavable; private Lookup lookup; private TopComponent tc; private InstanceContent ic; public MyWidget(Scene scene, String label, TopComponent tc) { super(scene, label); this.tc = tc; ic = new InstanceContent(); getActions().addAction(ActionFactory.createMoveAction(null, new MoveStrategyProvider())); } @Override public Lookup getLookup() { if (lookup == null) { lookup = new AbstractLookup(ic); } return lookup; } private class MoveStrategyProvider implements MoveProvider { @Override public void movementStarted(Widget widget) { } @Override public void movementFinished(Widget widget) { modify(); } @Override public Point getOriginalLocation(Widget widget) { return ActionFactory.createDefaultMoveProvider().getOriginalLocation(widget); } @Override public void setNewLocation(Widget widget, Point point) { ActionFactory.createDefaultMoveProvider().setNewLocation(widget, point); } } private void modify() { if (getLookup().lookup(MySavable.class) == null) { ic.add(mySavable = new MySavable()); } } private class MySavable extends AbstractSavable { public MySavable() { register(); } TopComponent tc() { return tc; } @Override protected String findDisplayName() { return getLabel(); } @Override protected void handleSave() throws IOException { ic.remove(mySavable); unregister(); } @Override public boolean equals(Object obj) { if (obj instanceof MySavable) { MySavable m = (MySavable) obj; return tc() == m.tc(); } return false; } @Override public int hashCode() { return tc().hashCode(); } } }

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  • Viewing the NetBeans Central Registry (Part 2)

    - by Geertjan
    Jens Hofschröer, who has one of the very best NetBeans Platform blogs (if you more or less understand German), and who wrote, sometime ago, the initial version of the Import Statement Organizer, as well as being the main developer of a great gear design & manufacturing tool on the NetBeans Platform in Aachen, commented on my recent blog entry "Viewing the NetBeans Central Registry", where the root Node of the Central Registry is shown in a BeanTreeView, with the words: "I wrapped that Node in a FilterNode to provide the 'position' attribute and the 'file extension'. All Children are wrapped too. Then I used an OutlineView to show these two properties. Great tool to find wrong layer entries." I asked him for the code he describes above and he sent it to me. He discussed it here in his blog, while all the code involved can be read below. The result is as follows, where you can see that the OutlineView shows information that my simple implementation (via a BeanTreeView) kept hidden: And so here is the definition of the Node. class LayerPropertiesNode extends FilterNode { public LayerPropertiesNode(Node node) { super(node, isFolder(node) ? Children.create(new LayerPropertiesFactory(node), true) : Children.LEAF); } private static boolean isFolder(Node node) { return null != node.getLookup().lookup(DataFolder.class); } @Override public String getDisplayName() { return getLookup().lookup(FileObject.class).getName(); } @Override public Image getIcon(int type) { FileObject fo = getLookup().lookup(FileObject.class); try { DataObject data = DataObject.find(fo); return data.getNodeDelegate().getIcon(type); } catch (DataObjectNotFoundException ex) { Exceptions.printStackTrace(ex); } return super.getIcon(type); } @Override public Image getOpenedIcon(int type) { return getIcon(type); } @Override public PropertySet[] getPropertySets() { Set set = Sheet.createPropertiesSet(); set.put(new PropertySupport.ReadOnly<Integer>( "position", Integer.class, "Position", null) { @Override public Integer getValue() throws IllegalAccessException, InvocationTargetException { FileObject fileEntry = getLookup().lookup(FileObject.class); Integer posValue = (Integer) fileEntry.getAttribute("position"); return posValue != null ? posValue : Integer.valueOf(0); } }); set.put(new PropertySupport.ReadOnly<String>( "ext", String.class, "Extension", null) { @Override public String getValue() throws IllegalAccessException, InvocationTargetException { FileObject fileEntry = getLookup().lookup(FileObject.class); return fileEntry.getExt(); } }); PropertySet[] original = super.getPropertySets(); PropertySet[] withLayer = new PropertySet[original.length + 1]; System.arraycopy(original, 0, withLayer, 0, original.length); withLayer[withLayer.length - 1] = set; return withLayer; } private static class LayerPropertiesFactory extends ChildFactory<FileObject> { private final Node context; public LayerPropertiesFactory(Node context) { this.context = context; } @Override protected boolean createKeys(List<FileObject> list) { FileObject folder = context.getLookup().lookup(FileObject.class); FileObject[] children = folder.getChildren(); List<FileObject> ordered = FileUtil.getOrder(Arrays.asList(children), false); list.addAll(ordered); return true; } @Override protected Node createNodeForKey(FileObject key) { AbstractNode node = new AbstractNode(org.openide.nodes.Children.LEAF, key.isFolder() ? Lookups.fixed(key, DataFolder.findFolder(key)) : Lookups.singleton(key)); return new LayerPropertiesNode(node); } } } Then here is the definition of the Action, which pops up a JPanel, displaying an OutlineView: @ActionID(category = "Tools", id = "de.nigjo.nb.layerview.LayerViewAction") @ActionRegistration(displayName = "#CTL_LayerViewAction") @ActionReferences({ @ActionReference(path = "Menu/Tools", position = 1450, separatorBefore = 1425) }) @Messages("CTL_LayerViewAction=Display XML Layer") public final class LayerViewAction implements ActionListener { @Override public void actionPerformed(ActionEvent e) { try { Node node = DataObject.find(FileUtil.getConfigRoot()).getNodeDelegate(); node = new LayerPropertiesNode(node); node = new FilterNode(node) { @Override public Component getCustomizer() { LayerView view = new LayerView(); view.getExplorerManager().setRootContext(this); return view; } @Override public boolean hasCustomizer() { return true; } }; NodeOperation.getDefault().customize(node); } catch (DataObjectNotFoundException ex) { Exceptions.printStackTrace(ex); } } private static class LayerView extends JPanel implements ExplorerManager.Provider { private final ExplorerManager em; public LayerView() { super(new BorderLayout()); em = new ExplorerManager(); OutlineView view = new OutlineView("entry"); view.addPropertyColumn("position", "Position"); view.addPropertyColumn("ext", "Extension"); add(view); } @Override public ExplorerManager getExplorerManager() { return em; } } }

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  • How to override the default dir alias in Powershell?

    - by Ashwin
    I wanted to see colorized filenames when I typed dir in Powershell. So, I added the Set-ChildItemColor function from here to my profile file. I also added this line at the end of the profile file to override the dir alias: Set-Alias dir Get-ChildItemColor Now, when I open Powershell, I get this error: Set-Alias : The AllScope option cannot be removed from the alias 'dir'. At C:\Users\joe\Documents\WindowsPowerShell\Microsoft.PowerShell_profile.ps1:82 char:10 + Set-Alias <<<< dir Get-ChildItemColor + CategoryInfo : WriteError: (dir:String) [Set-Alias], SessionStateUna uthorizedAccessException + FullyQualifiedErrorId : AliasAllScopeOptionCannotBeRemoved,Microsoft.PowerShe ll.Commands.SetAliasCommand What is this AllScope? How do I remove that option to get colorized dir?

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  • What are possible ways to override User Access Control (UAC) while registering an ActiveX Control?

    - by Itz.Irshad
    In an ASP.NET 2.0 Application, an ActiveX control is used. When user first time access the appliction and he/she did not have that ActiveX registered. Application show a popup to install ActiveX. When user follow the process, ActiveX is registered and application loads the ActiveX to accomplish desired tasks. In Windows Vista, Win 7 and Win 8, User Access Control (UAC) is prompted to allow to install the ActiveX at very first time. This happens even if user is Administrator too. What are alternatives to override this UAC component while installing ActiveX ? Suggestions are appreciated.

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  • newbie question -- how does one override show for a newtype?

    - by gatoatigrado
    I want to override the default integer constructors in Haskell so they produce strings (mostly for curiosity, but temporarily to make a nice input alternative for LaTeX's \frac{}{} inconvenience). I wanted to be able to use the language itself, instead of a special parser, but I guess that's probably not going to work out... module Main where import Prelude hiding ((+)) newtype A = A Int deriving (Eq, Show, Num) default (A) (+) :: A -> (A -> String) (A a) + (A b) = (show a) ++ " + " ++ (show b) main2 = 3+4 main :: IO () main = putStrLn main2 The problem with the above is that the + function only works for (A, A) instead of (A, String), etc. If one simply leaves out the pattern match "(A a)" and writes "a" instead, then the show() function prepends "A " so "3" becomes "A 3" instead of just "3". I want to override Show for A, but it seems to be quite a headache...

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  • how can I override an anonymous javascript function attached to an eventlistener?

    - by Sid
    I found that a website does somewhat sneaky things. When you hover over a link, it shows you the real URL. WHen you click on it, it uses the click/mousedown event to rewrite the URL. I want to override that behaviour in firefox, So I fired up firebug to see what it does. On a mouse click, it executes a function called window.tgs. Easy, I thought. I can override this function. My first attempt was to do get the element via getELementsByTagName(), and then element.removeEventListener("click",window.tgs, false); To my surprise, this did nothing. I tried redefining window.tgs window.tgs = function() { return true; }; that did not do anything either. I am not a JS expert. Your insights appreciated thanks Sid

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  • how to create Codeigniter route that doesn't override the other controller routes?

    - by bakazero
    I've got a lot controller in my Codeigniter apps, ex: Signup, Profile, Main, etc.. Now I want to build "User" controller. what I want: if people goes to url: example.com/signup, I want use default route to "Signup" Controller if people goes to url: example.com/bobby.ariffin, I want to reroute this to "User" Controller because the url not handled by any Controller in my apps. I had create this in my config/routes.php: $route['(:any)'] = "user/$1"; but it's override all the route in my apps to "User" Controller. Is there any simple route for Codeigniter that doesn't override the other controller routes?

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  • How to override JS function from a firefox extension?

    - by BruceBerry
    Hello, I am trying to intercept calls to document.write for all pages. Setting up the interception inside the page by injecting a script like function overrideDocWrite() { alert("Override called"); document.write = function(w) { return function(s) { alert("special dom"); w.call(this, wrapString(s)); }; }(document.write); alert("Override finished"); } is easy and works, but i would like my extension to setup the interception for each document object from inside the extension. I couldn't find a way to do this. I tried to listen for the "load" event and set up the interception there but it also fails. How do I hook calls to doc.write from an extension?

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  • User control event or method override where custom properties are valid?

    - by Curtis White
    I have an ASP.NET user control that is used in another use control. The parent user control uses data-binding to bind to a custom property of the child user control. What method can I override or page event where I am ensured that the property state is set? I think in a page it is PageLoaded versus the Page_Load override? I am looking for this in the user control because my property is always null even though it is set. Thanks.

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  • How to override virtual function in good style? [C++]

    - by Knowing me knowing you
    Hi, guys I know this question is very basic but I've met in few publications (websites, books) different style of override virtual function. What I mean is: if I have base class: class Base { public: virtual void f() = 0; }; in some publications I saw that to override this some authors would just say: void f(); and some would still repeat the virtual keyword before void. Which form of overwriting is in good style? Thank you for your answers.

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  • How do I prevent or override a group policy on Windows 7?

    - by Kevin
    A few months ago my company was purchased by a large corporation. We recently switched our network over to the large corporate network which has more restrictions requirements. One of these is the requirement to use a proxy server for Internet traffic. However, some of our internal servers are not recognized by the corporate DNS, so we need to provide the fully qualified domain name. For W7, we make changes to the Internet Properties for IE8 and Chrome to include our domain name as an exception to the proxy server (e.g., *.foobar.com). The problem is that a group policy that does not include our domain name is continually pushed out to my systems throughout the day. This requires me to make the appropriate changes to the Internet Properties several times a day in order to access our internal servers. Is there a way that I can prevent the group policy from being pushed to my systems or detect when the group policy is pushed and override it? I am an administrator on all of my systems. I do have Firefox installed which is not subject to the same group policy push, but I need to have IE8 and Chrome working.

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  • How can I override mod-php5's .php mapping to php4-cgi per VirtualHost or Directory?

    - by geocoo
    I am running Debian Linux with apache2 and libapache2-mod-php5 5.3.3-7. I have one VirtualHost which requires php4. So I researched and compiled php4-cgi. However, I cannot seem to: Override mod-php5's mapping of .php in that vhost (or even globally, without disabling php completley). Even find where that mapping is made, in hope of disabling it and enabling mod-php5 or php4-cgi per vhost. This is my php4-cgi mapping (Inside the one php4 vhost): ScriptAlias /php4 /usr/local/php4/bin <Directory /usr/local/php4/bin> Options +ExecCGI +FollowSymLinks </Directory> <Directory /www/test> AddHandler php4-cgi-script .php Action php4-cgi-script /php4/php Options +ExecCGI </Directory> This does not work, mod-php5 still runs all .php files in that vhost/directory. If I change the file extension in the AddHandler above from .php to .php4, then .php4 files do run php4-cgi as expected, but I can't change all the files in the app to .php4. I thought maybe I could disable the mod-php5's mapping in my vhost or directory, then do my cgi-config (as above) but many combinations of these in different contexts did not work: RemoveHandler .php RemoveType .php php_flag engine off (this seems to even disable my php4-cgi so that wont work) The only other place I can find any mapping is in /etc/mime.types, but commenting out the relevant lines and restarting apache2 does not affect mod-php5's .php mapping. I have searched as much as I can, it is now a mystery to me. Any help or direction would be greatly appreciated.

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  • How do I prevent or override a group policy on Windows 7?

    - by Kevin
    A few months ago my company was purchased by a large corporation. We recently switched our network over to the large corporate network which has more restrictions requirements. One of these is the requirement to use a proxy server for Internet traffic. However, some of our internal servers are not recognized by the corporate DNS, so we need to provide the fully qualified domain name. For W7, we make changes to the Internet Properties for IE8 and Chrome to include our domain name as an exception to the proxy server (e.g., *.foobar.com). The problem is that a group policy that does not include our domain name is continually pushed out to my systems throughout the day. This requires me to make the appropriate changes to the Internet Properties several times a day in order to access our internal servers. Is there a way that I can prevent the group policy from being pushed to my systems or detect when the group policy is pushed and override it? I am an administrator on all of my systems. I do have Firefox installed which is not subject to the same group policy push, but I need to have IE8 and Chrome working.

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  • Android Phonegap - TIMEOUT ERROR when trying to set a WebViewClient

    - by Spike777
    I'm working with Android and Phonegap, and at the moment I'm having trouble with one simple thing. I need to setup a webViewClient to the PhoneGap webView in order to capture the URL of a page finished and to work with that. This is the code: public class PhoneGapTest extends DroidGap { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); super.setBooleanProperty("loadInWebView", true); super.clearCache(); super.keepRunning = false; super.loadUrl("file:///android_asset/www/index.html"); super.appView.setWebViewClient(new WebViewClient(){ @Override public void onPageStarted(WebView view, String url, Bitmap bitmap) { Log.i("TEST", "onPageStarted: " + url); } @Override public void onPageFinished(WebView view, String url) { Log.i("TEST", "onPageFinished: " + url); } }); } That code doesn't seems to work, the page never loads and I get a TIMEOUT ERROR, but if I remove the "setWebViewClient" part the page loads perfectly. I saw that there is a class CordovaWebViewClient, do I have to use that instead of WebViewClient? I found this way on the web: this.appView.setWebViewClient(new CordovaWebViewClient(this){ @Override public boolean shouldOverrideUrlLoading(final WebView view, String url) { Log.i("BugTest", "shouldOverrideUrlLoading: " + url); return true; } @Override public void onPageStarted(WebView view, String url, Bitmap bitmap) { Log.i("TEST", "onPageStarted: " + url); } @Override public void onPageFinished(WebView view, String url) { Log.i("TEST", "onPageFinished: " + url); } @Override public void doUpdateVisitedHistory(WebView view, String url, boolean isReload){ } }); But that code isn't working either, I still got a TIMEOUT ERROR. I also saw that there is already a webVieClient member, but I don't if I have to use it and how. I'm working with Phonegap version 1.9.0 Thanks for reading Answer to Simon: This doesn't work either, I still receive a TIMEOUT ERROR, there is something wrong? public class MainActivity extends DroidGap { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); super.init(); super.appView.clearCache(true); super.appView.clearHistory(); this.appView.setWebViewClient(new CustomCordovaWebViewClient(this)); super.loadUrl("file:///android_asset/www/index.html"); } public class CustomCordovaWebViewClient extends CordovaWebViewClient { public CustomCordovaWebViewClient(DroidGap ctx) { super(ctx); } @Override public void onPageStarted(WebView view, String url, Bitmap bitmap) { Log.i("TEST", "onPageStarted: " + url); } @Override public void onPageFinished(WebView view, String url) { Log.i("TEST", "onPageFinished: " + url); } @Override public void doUpdateVisitedHistory(WebView view, String url, boolean isReload){ } @Override public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) { } } }

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  • Best practices regarding equals: to overload or not to overload?

    - by polygenelubricants
    Consider the following snippet: import java.util.*; public class EqualsOverload { public static void main(String[] args) { class Thing { final int x; Thing(int x) { this.x = x; } public int hashCode() { return x; } public boolean equals(Thing other) { return this.x == other.x; } } List<Thing> myThings = Arrays.asList(new Thing(42)); System.out.println(myThings.contains(new Thing(42))); // prints "false" } } Note that contains returns false!!! We seems to have lost our things!! The bug, of course, is the fact that we've accidentally overloaded, instead of overridden, Object.equals(Object). If we had written class Thing as follows instead, then contains returns true as expected. class Thing { final int x; Thing(int x) { this.x = x; } public int hashCode() { return x; } @Override public boolean equals(Object o) { return (o instanceof Thing) && (this.x == ((Thing) o).x); } } Effective Java 2nd Edition, Item 36: Consistently use the Override annotation, uses essentially the same argument to recommend that @Override should be used consistently. This advice is good, of course, for if we had tried to declare @Override equals(Thing other) in the first snippet, our friendly little compiler would immediately point out our silly little mistake, since it's an overload, not an override. What the book doesn't specifically cover, however, is whether overloading equals is a good idea to begin with. Essentially, there are 3 situations: Overload only, no override -- ALMOST CERTAINLY WRONG! This is essentially the first snippet above Override only (no overload) -- one way to fix This is essentially the second snippet above Overload and override combo -- another way to fix The 3rd situation is illustrated by the following snippet: class Thing { final int x; Thing(int x) { this.x = x; } public int hashCode() { return x; } public boolean equals(Thing other) { return this.x == other.x; } @Override public boolean equals(Object o) { return (o instanceof Thing) && (this.equals((Thing) o)); } } Here, even though we now have 2 equals method, there is still one equality logic, and it's located in the overload. The @Override simply delegates to the overload. So the questions are: What are the pros and cons of "override only" vs "overload & override combo"? Is there a justification for overloading equals, or is this almost certainly a bad practice?

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  • Android Expandable List View Update

    - by Gaurav Arora
    I am implementing a chatting application, where I have made a service to listen all the presence changed. On the change of the presence I want to update the data and I am unable to update the data that is showing in the expandable list view. Please suggest me a means to do the same. public class UserMenuActivity extends ExpandableListActivity { private XMPPConnection connection; String name,availability,subscriptionStatus; TextView tv_Status; /** Variable Define here */ private String[] data = { "View my profile", "New Multiperson Chat", "New Broad Cast Message", "New Contact Category", "New Group", "Invite to CCM", "Search", "Expand All", "Settings", "Help", "Close" }; private String[] data_Contact = { "Rename Category","Move Contact to Category", "View my profile", "New Multiperson Chat", "New Broad Cast Message", "New Contact Category", "New Group", "Invite to CCM", "Search", "Expand All", "Settings", "Help", "Close" }; private String[] data_child_contact = { "Open chat", "Delete Contact","View my profile", "New Multiperson Chat", "New Broad Cast Message", "New Contact Category", "New Group", "Invite to CCM", "Search", "Expand All", "Settings", "Help", "Close" }; private String[] menuItem = { "Chats", "Contacts", "CGM Groups", "Pending","Request" }; private List<String> menuItemList = Arrays.asList(menuItem); private int commonGroupPosition = 0; private String etAlertVal; private DatabaseHelper dbHelper; private int categoryID, listPos; /** New Code here.. */ private ArrayList<String> groupNames; private ArrayList<ArrayList<ChildItems>> childs; private UserMenuAdapter adapter; private Object object; private String[] data2 = { "PIN Michelle", "IP Call" }; private ListView mlist2; private ImageButton mimBtnMenu; private LinearLayout mllpopmenu; private View popupView; private PopupWindow popupWindow; private AlertDialog.Builder alert; private EditText input; private TextView mtvUserName, mtvUserTagLine; private ExpandableListView mExpandableListView; public static List<CategoryDataClass> categoryList; private boolean menuType = false; private String childValContact=""; public static Context context; @Override public void onBackPressed() { if (mllpopmenu.getVisibility() == View.VISIBLE) { mllpopmenu.setVisibility(View.INVISIBLE); } else { if (CCMStaticVariable.CommonConnection.isConnected()) { CCMStaticVariable.CommonConnection.disconnect(); } super.onBackPressed(); } } @SuppressWarnings("unchecked") @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_MENU) { if (mllpopmenu.getVisibility() == View.VISIBLE) { mllpopmenu.setVisibility(View.INVISIBLE); } else { if (commonGroupPosition >= 4 && menuType == true) { if(childValContact == ""){ mllpopmenu.setVisibility(View.VISIBLE); mlist2.setAdapter(new ArrayAdapter(UserMenuActivity.this, R.layout.listviewtext, R.id.tvMenuText, data_Contact)); }else{ mllpopmenu.setVisibility(View.VISIBLE); mlist2.setAdapter(new ArrayAdapter(UserMenuActivity.this, R.layout.listviewtext, R.id.tvMenuText, data_child_contact)); } } else if (commonGroupPosition == 0) { mllpopmenu.setVisibility(View.VISIBLE); mlist2.setAdapter(new ArrayAdapter(UserMenuActivity.this, R.layout.listviewtext, R.id.tvMenuText, data)); } } return true; } return super.onKeyDown(keyCode, event); } @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); setContentView(R.layout.usermenulayout); dbHelper = new DatabaseHelper(UserMenuActivity.this); //this.context = context.getApplicationContext(); XMPPConn.getContactList(); connection = CCMStaticVariable.CommonConnection; Presence userPresence = new Presence(Presence.Type.available); userPresence.setPriority(24); userPresence.setMode(Presence.Mode.away); connection.sendPacket(userPresence); } @Override protected void onResume() { super.onResume(); Presence userPresence = new Presence(Presence.Type.available); userPresence.setPriority(24); userPresence.setMode(Presence.Mode.away); connection.sendPacket(userPresence); XMPPConn.getContactList(); setExpandableListView(); } public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) { if (groupPosition == 1 && childPosition == 0) { startActivity(new Intent(UserMenuActivity.this, InvitetoCCMActivity.class)); } else if (groupPosition == 1 && childPosition != 0) { Intent intent = new Intent(UserMenuActivity.this, UserChatActivity.class); intent.putExtra("userNameVal", XMPPConn.mfriendList.get(childPosition - 1).friendName); startActivity(intent); } else if (groupPosition == 2 && childPosition == 0) { startActivity(new Intent(UserMenuActivity.this, CreateGroupActivity.class)); } else if (groupPosition == 2 && childPosition != 0) { String GROUP_NAME = childs.get(groupPosition).get(childPosition) .getName().toString(); int end = GROUP_NAME.indexOf("("); CCMStaticVariable.groupName = GROUP_NAME.substring(0, end).trim(); startActivity(new Intent(UserMenuActivity.this, GroupsActivity.class)); } else if (groupPosition >= 4) { childValContact = childs.get(groupPosition).get(childPosition).getName().trim(); showToast("user==>"+childValContact, 0); } return false; } private void setExpandableListView() { /***###############GROUP ARRAY ############################*/ final ArrayList<String> groupNames = new ArrayList<String>(); groupNames.add("Chats (2)"); groupNames.add("Contacts (" + XMPPConn.mfriendList.size() + ")"); groupNames.add("CGM Groups (" + XMPPConn.mGroupList.size() + ")"); groupNames.add("Pending (1)"); XMPPConn.getGroup(); categoryList = dbHelper.getAllCategory(); /**Group From Sever*/ if (XMPPConn.mGroupList.size() > 0) { for (int g = 0; g < XMPPConn.mGroupList.size(); g++) { XMPPConn.getGroupContact(XMPPConn.mGroupList.get(g).groupName); groupNames.add(XMPPConn.mGroupList.get(g).groupName + "(" + XMPPConn.mGroupContactList.size()+ ")"); } } if(categoryList.size() > 0){ for (int cat = 0; cat < categoryList.size(); cat++) { groupNames.add(categoryList.get(cat).getCategoryName()+ "(0)"); } } this.groupNames = groupNames; /*** ###########CHILD ARRAY * #################*/ ArrayList<ArrayList<ChildItems>> childs = new ArrayList<ArrayList<ChildItems>>(); ArrayList<ChildItems> child = new ArrayList<ChildItems>(); child.add(new ChildItems("Alisha", "Hi",0)); child.add(new ChildItems("Michelle", "Good Morning",0)); childs.add(child); child = new ArrayList<ChildItems>(); child.add(new ChildItems("", "",0)); if (XMPPConn.mfriendList.size() > 0) { for (int n = 0; n < XMPPConn.mfriendList.size(); n++) { child.add(new ChildItems(XMPPConn.mfriendList.get(n).friendNickName, XMPPConn.mfriendList.get(n).friendStatus, XMPPConn.mfriendList.get(n).friendState)); } } childs.add(child); /************** CGM Group Child here *********************/ child = new ArrayList<ChildItems>(); child.add(new ChildItems("", "",0)); if (XMPPConn.mGroupList.size() > 0) { for (int grop = 0; grop < XMPPConn.mGroupList.size(); grop++) { child.add(new ChildItems( XMPPConn.mGroupList.get(grop).groupName + " (" + XMPPConn.mGroupList.get(grop).groupUserCount + ")", "",0)); } } childs.add(child); child = new ArrayList<ChildItems>(); child.add(new ChildItems("Shuchi", "Pending (Waiting for Authorization)",0)); childs.add(child); /************************ Group Contact List *************************/ if (XMPPConn.mGroupList.size() > 0) { for (int g = 0; g < XMPPConn.mGroupList.size(); g++) { /** Contact List */ XMPPConn.getGroupContact(XMPPConn.mGroupList.get(g).groupName); child = new ArrayList<ChildItems>(); for (int con = 0; con < XMPPConn.mGroupContactList.size(); con++) { child.add(new ChildItems( XMPPConn.mGroupContactList.get(con).friendName, XMPPConn.mGroupContactList.get(con).friendStatus,0)); } childs.add(child); } } if(categoryList.size() > 0){ for (int cat = 0; cat < categoryList.size(); cat++) { child = new ArrayList<ChildItems>(); child.add(new ChildItems("-none-", "",0)); childs.add(child); } } this.childs = childs; /** Set Adapter here */ adapter = new UserMenuAdapter(this, groupNames, childs); setListAdapter(adapter); object = this; mlist2 = (ListView) findViewById(R.id.list2); mimBtnMenu = (ImageButton) findViewById(R.id.imBtnMenu); mllpopmenu = (LinearLayout) findViewById(R.id.llpopmenu); mtvUserName = (TextView) findViewById(R.id.tvUserName); mtvUserTagLine = (TextView) findViewById(R.id.tvUserTagLine); //Set User name.. System.out.println("CCMStaticVariable.loginUserName===" + CCMStaticVariable.loginUserName); if (!CCMStaticVariable.loginUserName.equalsIgnoreCase("")) { mtvUserName.setText("" + CCMStaticVariable.loginUserName); } /** Expandable List set here.. */ mExpandableListView = (ExpandableListView) this .findViewById(android.R.id.list); mExpandableListView.setOnGroupClickListener(new OnGroupClickListener() { @Override public boolean onGroupClick(ExpandableListView parent, View v, int groupPosition, long id) { XMPPConn.getContactList(); if (parent.isGroupExpanded(groupPosition)) { commonGroupPosition = 0; }else{ commonGroupPosition = groupPosition; } String GROUP_NAME = groupNames.get(groupPosition); int end = groupNames.get(groupPosition).indexOf("("); String GROUP_NAME_VALUE = GROUP_NAME.substring(0, end).trim(); if (menuItemList.contains(GROUP_NAME_VALUE)) { menuType = false; CCMStaticVariable.groupCatName = GROUP_NAME_VALUE; } else { menuType = true; CCMStaticVariable.groupCatName = GROUP_NAME_VALUE; } long findCatId = dbHelper.getCategoryID(GROUP_NAME_VALUE); if (findCatId != 0) { categoryID = (int) findCatId; } childValContact=""; showToast("Clicked on==" + GROUP_NAME_VALUE, 0); return false; } }); /** Click on item */ mlist2.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> arg0, View arg1, int pos,long arg3) { if (commonGroupPosition >= 4) { if(childValContact == ""){ if (pos == 0) { showAlertEdit(CCMStaticVariable.groupCatName); } /** Move contact to catgory */ if (pos == 1) { startActivity(new Intent(UserMenuActivity.this,AddContactCategoryActivity.class)); } }else{ if(pos == 0){ Intent intent = new Intent(UserMenuActivity.this,UserChatActivity.class); intent.putExtra("userNameVal",childValContact); startActivity(intent); } if(pos == 1){ XMPPConn.removeEntry(childValContact); showToast("Contact deleted sucessfully", 0); Intent intent = new Intent(UserMenuActivity.this,UserMenuActivity.class); } } } else { /** MyProfile */ if (pos == 0) { startActivity(new Intent(UserMenuActivity.this, MyProfileActivity.class)); } /** New multiperson chat start */ if (pos == 1) { startActivity(new Intent(UserMenuActivity.this, NewMultipersonChatActivity.class)); } /** New Broadcast message */ if (pos == 2) { startActivity(new Intent(UserMenuActivity.this, NewBroadcastMessageActivity.class)); } /** Click on add category */ if (pos == 3) { showAlertAdd(); } if (pos == 4) { startActivity(new Intent(UserMenuActivity.this, CreateGroupActivity.class)); } if (pos == 5) { startActivity(new Intent(UserMenuActivity.this, InvitetoCCMActivity.class)); } if (pos == 6) { startActivity(new Intent(UserMenuActivity.this, SearchActivity.class)); } if (pos == 7) { onGroupExpand(2); for (int i = 0; i < groupNames.size(); i++) { mExpandableListView.expandGroup(i); } } /** Click on settings */ if (pos == 8) { startActivity(new Intent(UserMenuActivity.this, SettingsActivity.class)); } if (pos == 10) { System.exit(0); } if (pos == 14) { if (mllpopmenu.getVisibility() == View.VISIBLE) { mllpopmenu.setVisibility(View.INVISIBLE); if (popupWindow.isShowing()) { popupWindow.dismiss(); } } else { mllpopmenu.setVisibility(View.VISIBLE); mlist2.setAdapter(new ArrayAdapter( UserMenuActivity.this, R.layout.listviewtext, R.id.tvMenuText, data)); } } } } }); } /** Toast message display here.. */ private void showToast(String msg, int time) { Toast.makeText(this, msg, time).show(); } public String showSubscriptionStatus(String friend){ return friend; } } Service.class public class UpdaterService extends Service { private XMPPConnection connection; String Friend; String user = ""; @Override public IBinder onBind(Intent arg0) { // TODO Auto-generated method stub return null; } @Override public void onCreate() { // Toast.makeText(this, "My Service Created", Toast.LENGTH_LONG).show(); super.onCreate(); } @Override public void onDestroy() { // TODO Auto-generated method stub super.onDestroy(); } @Override public void onStart(Intent intent, int startId) { // TODO Auto-generated method stub showToast("My Service Started", 0); connection = getConnection(); if (connection.isConnected()) { final Roster roster = connection.getRoster(); RosterListener r1 = new RosterListener() { @Override public void presenceChanged(Presence presence) { // TODO Auto-generated method stub XMPPConn.getContactList(); } @Override public void entriesUpdated(Collection<String> arg0) { // TODO Auto-generated method stub //notification("entriesUpdated"); } @Override public void entriesDeleted(Collection<String> arg0) { // TODO Auto-generated method stub //notification("entriesDeleted"); } @Override public void entriesAdded(Collection<String> arg0) { // TODO Auto-generated method stub Iterator<String> it = arg0.iterator(); if (it.hasNext()) { user = it.next(); } RosterEntry entry = roster.getEntry(user); if(entry.getType().toString().equalsIgnoreCase("to")){ int index_of_Alpha = Friend.indexOf("@"); String subID = Friend.substring(0, index_of_Alpha); notification("Hi "+subID+" wants to add you"); } } }; if (roster != null) { roster.setSubscriptionMode(Roster.SubscriptionMode.manual); System.out.println("subscription going on"); roster.addRosterListener(r1); } } else { showToast("Connection lost-", 0); } } protected void showToast(String msg, int time) { Toast.makeText(this, msg, time).show(); } private XMPPConnection getConnection() { return CCMStaticVariable.CommonConnection; } /** Notification manager */ private void notification(CharSequence message) { String ns = Context.NOTIFICATION_SERVICE; NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns); int icon = R.drawable.ic_launcher; CharSequence tickerText = message; long when = System.currentTimeMillis(); Notification notification = new Notification(icon, tickerText, when); Context context = getApplicationContext(); CharSequence contentTitle = "CCM"; CharSequence contentText = message; Intent notificationIntent = new Intent(this, ManageNotification.class); notificationIntent.putExtra("Subscriber_ID",user ); PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0); notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent); notification.flags |= Notification.FLAG_AUTO_CANCEL; final int HELLO_ID = 1; mNotificationManager.notify(HELLO_ID, notification); } } Here is my adapter class public class UserMenuAdapter extends BaseExpandableListAdapter { private ArrayList<String> groups; private ArrayList<ArrayList<ChildItems>> childs; private Context context; public LayoutInflater inflater; ImageView img_availabiliy; private static final int[] EMPTY_STATE_SET = {}; private static final int[] GROUP_EXPANDED_STATE_SET = {android.R.attr.state_expanded}; private static final int[][] GROUP_STATE_SETS = { EMPTY_STATE_SET, // 0 GROUP_EXPANDED_STATE_SET // 1 }; public UserMenuAdapter(Context context, ArrayList<String> groups, ArrayList<ArrayList<ChildItems>> childs) { this.context = context; this.groups = groups; this.childs = childs; inflater = LayoutInflater.from(context); } @Override public Object getChild(int groupPosition, int childPosition) { return childs.get(groupPosition).get(childPosition); } @Override public long getChildId(int groupPosition, int childPosition) { return (long) (groupPosition * 1024 + childPosition); } @Override public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) { View v = null; if (convertView != null) v = convertView; else v = inflater.inflate(R.layout.child_layout, parent, false); ChildItems ci = (ChildItems) getChild(groupPosition, childPosition); TextView tv = (TextView) v.findViewById(R.id.tvChild); tv.setText(ci.getName()); TextView tv2 = (TextView) v.findViewById(R.id.tvChild2); tv2.setText(ci.getDailyStatus()); img_availabiliy = (ImageView)v.findViewById(R.id.img_childlayout_AVAILABILITY); ImageView friendPics = (ImageView)v.findViewById(R.id.ivFriendPics); if(ci.getStatusState() == 1){ img_availabiliy.setImageResource(R.drawable.online); } else if(ci.getStatusState()==0){ img_availabiliy.setImageResource(R.drawable.offline); } else if (ci.getStatusState()==2) { img_availabiliy.setImageResource(R.drawable.away); } else if(ci.getStatusState()==3){ img_availabiliy.setImageResource(R.drawable.busy); } else{ img_availabiliy.setImageDrawable(null); } if((groupPosition == 1 && childPosition == 0)){ friendPics.setImageResource(R.drawable.inviteto_ccm); img_availabiliy.setVisibility(View.INVISIBLE); } else if(groupPosition == 2 && childPosition == 0){ friendPics.setImageResource(R.drawable.new_ccmgroup); img_availabiliy.setVisibility(View.VISIBLE); }else{ if(ci.getPicture()!= null){ Bitmap bitmap = BitmapFactory.decodeByteArray(ci.getPicture(), 0, ci.getPicture().length); bitmap = Bitmap.createScaledBitmap(bitmap, 50, 50, true); friendPics.setImageBitmap(bitmap); }else{ friendPics.setImageResource(R.drawable.avatar); } img_availabiliy.setVisibility(View.VISIBLE); } return v; } @Override public int getChildrenCount(int groupPosition) { return childs.get(groupPosition).size(); } @Override public Object getGroup(int groupPosition) { return groups.get(groupPosition); } @Override public int getGroupCount() { return groups.size(); } @Override public long getGroupId(int groupPosition) { return (long) (groupPosition * 1024); } @Override public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) { View v = null; if (convertView != null) v = convertView; else v = inflater.inflate(R.layout.group_layout, parent, false); String gt = (String) getGroup(groupPosition); TextView tv2 = (TextView) v.findViewById(R.id.tvGroup); if (gt != null) tv2.setText(gt); /**Set Image on group layout, Max/min*/ View ind = v.findViewById( R.id.explist_indicator); View groupInd = v.findViewById( R.id.llgroup); if( ind != null ) { ImageView indicator = (ImageView)ind; if( getChildrenCount( groupPosition ) == 0 ) { indicator.setVisibility( View.INVISIBLE ); } else { indicator.setVisibility( View.VISIBLE ); int stateSetIndex = ( isExpanded ? 1 : 0) ; Drawable drawable = indicator.getDrawable(); drawable.setState(GROUP_STATE_SETS[stateSetIndex]); } } if( groupInd != null ) { RelativeLayout indicator2 = (RelativeLayout)groupInd; if( getChildrenCount( groupPosition ) == 0 ) { indicator2.setVisibility( View.INVISIBLE ); } else { indicator2.setVisibility( View.VISIBLE ); int stateSetIndex = ( isExpanded ? 1 : 0) ; Drawable drawable2 = indicator2.getBackground(); drawable2.setState(GROUP_STATE_SETS[stateSetIndex]); } } return v; } @Override public boolean hasStableIds() { return true; } @Override public boolean isChildSelectable(int groupPosition, int childPosition) { return true; } public void onGroupCollapsed(int groupPosition) { } public void onGroupExpanded(int groupPosition) { } } I just want to update my list in ON PRESENCE CHANGED method in the Service class.. Please suggest me a means to do the same.

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  • Clean way to use mutable implementation of Immutable interfaces for encapsulation

    - by dsollen
    My code is working on some compost relationship which creates a tree structure, class A has many children of type B, which has many children of type C etc. The lowest level class, call it bar, also points to a connected bar class. This effectively makes nearly every object in my domain inter-connected. Immutable objects would be problematic due to the expense of rebuilding almost all of my domain to make a single change to one class. I chose to go with an interface approach. Every object has an Immutable interface which only publishes the getter methods. I have controller objects which constructs the domain objects and thus has reference to the full objects, thus capable of calling the setter methods; but only ever publishes the immutable interface. Any change requested will go through the controller. So something like this: public interface ImmutableFoo{ public Bar getBar(); public Location getLocation(); } public class Foo implements ImmutableFoo{ private Bar bar; private Location location; @Override public Bar getBar(){ return Bar; } public void setBar(Bar bar){ this.bar=bar; } @Override public Location getLocation(){ return Location; } } public class Controller{ Private Map<Location, Foo> fooMap; public ImmutableFoo addBar(Bar bar){ Foo foo=fooMap.get(bar.getLocation()); if(foo!=null) foo.addBar(bar); return foo; } } I felt the basic approach seems sensible, however, when I speak to others they always seem to have trouble envisioning what I'm describing, which leaves me concerned that I may have a larger design issue then I'm aware of. Is it problematic to have domain objects so tightly coupled, or to use the quasi-mutable approach to modifying them? Assuming that the design approach itself isn't inherently flawed the particular discussion which left me wondering about my approach had to do with the presence of business logic in the domain objects. Currently I have my setter methods in the mutable objects do error checking and all other logic required to verify and make a change to the object. It was suggested that this should be pulled out into a service class, which applies all the business logic, to simplify my domain objects. I understand the advantage in mocking/testing and general separation of logic into two classes. However, with a service method/object It seems I loose some of the advantage of polymorphism, I can't override a base class to add in new error checking or business logic. It seems, if my polymorphic classes were complicated enough, I would end up with a service method that has to check a dozen flags to decide what error checking and business logic applies. So, for example, if I wanted to have a childFoo which also had a size field which should be compared to bar before adding par my current approach would look something like this. public class Foo implements ImmutableFoo{ public void addBar(Bar bar){ if(!getLocation().equals(bar.getLocation()) throw new LocationException(); this.bar=bar; } } public interface ImmutableChildFoo extends ImmutableFoo{ public int getSize(); } public ChildFoo extends Foo implements ImmutableChildFoo{ private int size; @Override public int getSize(){ return size; } @Override public void addBar(Bar bar){ if(getSize()<bar.getSize()){ throw new LocationException(); super.addBar(bar); } My colleague was suggesting instead having a service object that looks something like this (over simplified, the 'service' object would likely be more complex). public interface ImmutableFoo{ ///original interface, presumably used in other methods public Location getLocation(); public boolean isChildFoo(); } public interface ImmutableSizedFoo implements ImmutableFoo{ public int getSize(); } public class Foo implements ImmutableSizedFoo{ public Bar bar; @Override public void addBar(Bar bar){ this.bar=bar; } @Override public int getSize(){ //default size if no size is known return 0; } @Override public boolean isChildFoo return false; } } public ChildFoo extends Foo{ private int size; @Override public int getSize(){ return size; } @Override public boolean isChildFoo(); return true; } } public class Controller{ Private Map<Location, Foo> fooMap; public ImmutableSizedFoo addBar(Bar bar){ Foo foo=fooMap.get(bar.getLocation()); service.addBarToFoo(foo, bar); returned foo; } public class Service{ public static void addBarToFoo(Foo foo, Bar bar){ if(foo==null) return; if(!foo.getLocation().equals(bar.getLocation())) throw new LocationException(); if(foo.isChildFoo() && foo.getSize()<bar.getSize()) throw new LocationException(); foo.setBar(bar); } } } Is the recommended approach of using services and inversion of control inherently superior, or superior in certain cases, to overriding methods directly? If so is there a good way to go with the service approach while not loosing the power of polymorphism to override some of the behavior?

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