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  • EJB 3 Session Bean Design for Simple CRUD

    - by sdoca
    I am writing an application that's sole purpose in life is to do CRUD operations for maintaining records in database. There are relationships between some of the tables/entities. Most examples I've seen for creating session beans deals with complex business logic/operations that interact with many entities which I don't have. Since my application is so very basic, what would be the best design for the session bean(s)? I was thinking of having one session bean per entity which had CRUD the methods defined. Then I thought of combining all of those session beans into a single session bean. And then I found this blog entry which is intriguing, but I must admit I don't understand all of it (what is a ServiceFacade?). I'm leaning towards session bean/entity class, but would like to hear more experienced opinions. Thanks.

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  • Browser show incomplete JSP data

    - by memoryleaks
    I am using JSP, Struts 1.3 and Apache Tomcat 5.5. For some reason response from JSP is being truncated and complete information is not shown. Class generated from the problem JSP page looks just fine. There are no any errors logged in Catalina's logs. I have no idea how this issue can be fixed.

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  • Using VRaptor3 with Tomcat UnpackWARs property setted to false

    - by VinTem
    Hi there, I have to deploy my web app to a tomcat container with the unpackWARs property defined to false. When I do that, although the application is successfully deployed, when I try to access my url I always got a 404 error. I just don't receive that error when I try to access a direct file like index.html for instance. But I can't do that, the VRaptor framework is responsible for routing my url to the jsp file. Does anyone know if I have do anything else? Thanx

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  • How to generate custom JSESSIONID, based on some hash of user's data in order to replicate session

    - by Shaman
    Is it possible to override Tomcat's embedded generator of JSESSIONID, to be able to create custom values of this cookie, based on user's login? Why do I need this: I have a load balancer with "sticky sessions", configured to route requests with the same JSESSIONID to the same server, and I want to prevent situation, when same user can start two different sessions on different servers.

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  • how to continuously send data without blocking?

    - by Donal Rafferty
    I am trying to send rtp audio data from my Android application. I currently can send 1 RTP packet with the code below and I also have another class that extends Thread that listens to and receives RTP packets. My question is how do I continuously send my updated buffer through the packet payload without blocking the receiving thread? public void run() { isRecording = true; android.os.Process.setThreadPriority (android.os.Process.THREAD_PRIORITY_URGENT_AUDIO); int buffersize = AudioRecord.getMinBufferSize(8000, AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT); Log.d("BUFFERSIZE","Buffer size = " + buffersize); arec = new AudioRecord(MediaRecorder.AudioSource.MIC, 8000, AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT, buffersize); short[] readBuffer = new short[80]; byte[] buffer = new byte[160]; arec.startRecording(); while(arec.getRecordingState() == AudioRecord.RECORDSTATE_RECORDING){ int frames = arec.read(readBuffer, 0, 80); @SuppressWarnings("unused") int lenghtInBytes = codec.encode(readBuffer, 0, buffer, frames); RtpPacket rtpPacket = new RtpPacket(); rtpPacket.setV(2); rtpPacket.setX(0); rtpPacket.setM(0); rtpPacket.setPT(0); rtpPacket.setSSRC(123342345); rtpPacket.setPayload(buffer, 160); try { rtpSession2.sendRtpPacket(rtpPacket); } catch (UnknownHostException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (RtpException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } So when I send on one device and receive on another I get decent audio, but when I send and receive on both I get broken sound like its taking turns to send and receive audio. I have a feeling it could be to do with the while loop? it could be looping around in there and not letting anything else run?

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  • Hibernate Validator - Using properties in the constraints xml

    - by Avi Y
    Hi, I have just started using hibernate validator. I am creating the constraints in an XML file(not annotations). The only problem I am having is that I would like to use properties inside the constraints. For example: <bean class="MyBean" > <constraint annotation="javax.validation.constraints.Min"> <element name="value">{myProperty}</element> </constraint> </bean> and I would like to define these properties in a separate file. Do you think that's possible? Any help would be appreciated.

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  • Client Web Service call over SSL using Apache Axis

    - by java_pill
    I'm using Apache Axis 1.5.1 to code a web service client connecting to a service over SSL. My application is running in Tomcat with SSL configuration setup in JKS. However, when I connect to the server, the connection is failing because the cert from our client is not being sent to the server. Is this something that has to be set in the client through code? Also note that the server does not need any user name or password authentication. With SSL turned off, everything works fine. Thanks,

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  • JComponent undock effect

    - by Christo Du Preez
    I'm trying to accomplish an undock effect for a custom Swing JComponent. By default the component is used inside a form along with other components. I want to be able to maximize this component to use the whole screen and then be able to dock it again. So far I've tested public void showDialog() { JFrame mainFrame = App.getApplication().getMainFrame(); JDialog dialog = new JDialog(mainFrame); dialog.setModal(true); dialog.setSize(800, 600); //Set to 80x660 for now dialog.add(this); //This is my JComponent dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE); dialog.setVisible(true); } This gives me desired effect but when closing the dialog my component doesn't receive events no more. How can I prevent this? Or is there perhaps a better way to accomplish this?

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  • JScrollPanel without scrollbars

    - by Erik Itland
    I'm trying to use a JScrollPanel to display a JPanel that might be too big for the containing Jpanel. I don't want to show the scrollbars (yes, this is questionable UI design, but it is my best guess of what the customer wants. We use the same idea other places in the application, and I feel this case have given me enough time to ponder if I can do it in a better way, but if you have a better idea I might accept it an answer.) First attempt: set verticalScrollBarPolicy to NEVER. Result: Scrolling using mouse wheel doesn't work. Second attempt: set the scrollbars to null. Result: Scrolling using mouse wheel doesn't work. Third attempt: set scrollbars visible property to false. Result: It is immidiately set visible by Swing. Fourth attempt: inject a scrollbar where setVisible is overridden to do nothing when called with true. Result: Can't remember exactly, but I think it just didn't work. Fifth attempt: inject a scrollbar where setBounds are overridden. Result: Just didn't look nice. (I might have missed something here, though.) Sixth attempt: ask stackoverflow. Result: Pending. Scrolling works once scrollbars are back.

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  • Are JSF 2.x ViewScoped Beans Thread Safe?

    - by Mark
    I've been googling for a couple hours on this issue to no eval. WELD docs and the CDI spec are pretty clear regarding thread safety of the scopes provided. For example: Application Scope - not safe Session Scope - not safe Request Scope - safe, always bound to a single thread Conversation Scope - safe (due to the WELD proxy serializing access from multiple request threads) I can't find anything on the View Scope defined by JSF 2.x. It is in roughly the same bucket as the Conversation Scope in that it is very possible for multiple requests to hit the scope concurrently despite it being bound to a single view / user. What I don't know is if the JSF implementation serializes access to the bean from multiple requests. Anyone have knowledge of the spec or of the Morraja/MyFaces implementations that could clear this up?

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  • RESTEasy - access to web folder for geting image

    - by Trick
    I would like to allow users to access images saved in web folder. For example - I have an image in web root folder "blank.png". But the link http://localhost:8080/myapp/blank.png returns 404 (not found). Adding type to resteasy.media.type.mappings does not work. I am a bit of a newbie in RESTEasy...

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  • Finding the second highest number in array

    - by Richard Jackson
    I'm having difficulty to understand the logic behind the method to find the second highest number in array. The method used is to find the highest in the array but less than the previous highest (which has already been found). The thing that I still can't figure it out is why || highest_score == second_highest is necessary. For example I input three numbers: 98, 56, 3. Without it, both highest and second highest would be 98. Please explain. int second highest = score[0]; if (score[i] > second_highest && score[i] < highest_score || highest_score == second_highest) second_highest = score[i];

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  • Testing JavaMail Related Modules

    - by Hamza Yerlikaya
    Part of my application depends on JavaMail, moving arranging messages etc. Is it possible to test this module without firing a IMAP server to run the tests on? I am always stuck when it comes to testing stuff that depends on external servers or modules.

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  • Jad file download link for my website

    - by Jareim
    Hi sir/madam! I am putting up a small website via webs.com for me and my friends that could also be accessible via wap, i.e. mobile internet, and I want to add links to my site that downloads .jar files. I uploaded the files on my site, and links to the .jar files went fine, but I also need links for .jad files (for some mobile phones that require .jad files FIRST then .jar). I tried doing a regular link for the .jad files, but it simply displayed the content of the .jad file. It wasn't installed or downloaded. What should I do? Or am I at a wrong website? Thanks!

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  • Finding the order of method calls in Eclipse

    - by Chathuranga Chandrasekara
    Suppose I have a big program that consists of hundreds of methods in it. And according to the nature of input the program flow is getting changed. Think I want to make a change to the original flow. And it is big hassle to find call hierarchy/ references and understand the flow. Do I have any solution for this within Eclipse? Or a plugin? As an example, I just need a Log of method names that is in order of time. Then I don't need to worry about the methods that are not relevant with my "given input" Update : Using debug mode in eclipse or adding print messages are not feasible. The program is sooooo big. :)

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  • Eclipse maven and wtp

    - by asrijaal
    Hi there, I've installed the m2eclipse plugin with WTP integration in my eclipse workbench. When I use to run the project on a server, the dependencies which has to be provided at runtime (e.g. spring) are not deployed. Is this working like intended? Maybe some of you can provide me the right way.

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  • Dimdim Change name

    - by islam
    i build dimdim v4.5 on my pc and its work fine with me. each time i want to start meeting i type my pc IP address like this : http://<my-ip-address>/dimdim i want to change the word dimdim to be anything else like : http://<my-ip-address>/meeting regards

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  • Android: Streaming audio over TCP Sockets

    - by user299988
    Hi, For my app, I need to record audio from MIC on an Android phone, and send it over TCP to the other android phone, where it needs to be played. I am using AudioRecord and AudioTrack class. This works great with a file - write audio to the file using DataOutputStream, and read from it using DataInputStream. However, if I obtain the same stream from a socket instead of a File, and try writing to it, I get an exception. I am at a loss to understand what could possibly be going wrong. Any help would be greatly appreciated. EDIT: The problem is same even if I try with larger buffer sizes (65535 bytes, 160000 bytes). This is the code: Recorder: int bufferSize = AudioRecord.getMinBufferSize(11025, , AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT); AudioRecord recordInstance = new AudioRecord(MediaRecorder.AudioSource.MIC, 11025, AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT, bufferSize); byte[] tempBuffer = new byte[bufferSize]; recordInstance.startRecording(); while (/*isRecording*/) { bufferRead = recordInstance.read(tempBuffer, 0, bufferSize); dataOutputStreamInstance.write(tempBuffer); } The DataOutputStream above is obtained as: BufferedOutputStream buff = new BufferedOutputStream(out1); //out1 is the socket's outputStream DataOutputStream dataOutputStreamInstance = new DataOutputStream (buff); Could you please have a look, and let me know what is it that I could be doing wrong here? Thanks,

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  • Create user variable in Intellij File Template

    - by Matt Broekhuis
    I am trying to use Intellij's file templates (not live templates) to help mitigate how much boilerplate code I use when making Services, daos, and their interfaces. I am able to use all the system defined variables just fine, such as ${PACKAGE_NAME} What I want though, is to be able to use my own variable names, like ${MY_USER_INPUT} however, when i do this like above, I get an error The documentation says : It is also possible to specify arbitrary number of custom variables in format ${<VARIABLE_NAME>}. and then Intellij is supposed to prompt the user for the value. However, this just plain doesn't work for me. What am I missing?

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  • Cross field validation in jsf h:datatable using p:calendar

    - by Matt Broekhuis
    I noticed this question was asked, but it has not been answered correctly. I have a datatable that has two columns start date and end date. Both contain primefaces p:calendar controls in them. I need to ensure that for each row that the date in column1 is not after the date in column2. I would like to tie this into the JSF validation framework, but I'm having trouble. i've tried marking the datatable rowStatePreserved="true" , this allows me to get the values, but something is still wrong as when it fails, all the values in the first row overwrite all the other values. What am I doing wrong, or should I be using a completely different strategy? xhtml code <h:form> <f:event type="postValidate" listener="#{bean.doCrossFieldValidation}"/> <p:dataTable id="eventDaysTable" value="#{course.courseSchedules}" var="_eventDay" styleClass="compactDataTable" > <p:column id="eventDayStartColumn"> <f:facet name="header"> Start </f:facet> <p:calendar id="startDate" required="true" value="#{_eventDay.startTime}" pattern="MM/dd/yyyy hh:mm a"/> </p:column> <p:column id="eventDayEndColumn"> <f:facet name="header"> End </f:facet> <p:calendar id="endDate" required="true" value="#{_eventDay.endTime}" pattern="MM/dd/yyyy hh:mm a"/> </p:column> </p:dataTable> </h:form> validationCode public void doCrossFieldValidation(ComponentSystemEvent cse) { UIData eventsDaysStable = (UIData) cse.getComponent().findComponent("eventDaysTable"); if (null != eventsDaysStable && eventsDaysStable.isRendered()) { Iterator<UIComponent> startDateCalendarIterator = eventsDaysStable.findComponent("eventDayStartColumn").getChildren().iterator(); Iterator<UIComponent> endDateCalendarIterator = eventsDaysStable.findComponent("eventDayEndColumn").getChildren().iterator(); while (startDateCalendarIterator.hasNext() && endDateCalendarIterator.hasNext()) { org.primefaces.component.calendar.Calendar startDateComponent = (org.primefaces.component.calendar.Calendar) startDateCalendarIterator.next(); org.primefaces.component.calendar.Calendar endDateComponent = (org.primefaces.component.calendar.Calendar) endDateCalendarIterator.next(); Date startDate = (Date) startDateComponent.getValue(); Date endDate = (Date) endDateComponent.getValue(); if (null != startDate && null != endDate && startDate.after(endDate)) { eventScheduleChronologyOk = false; startDateComponent.setValid(false); endDateComponent.setValid(false); } } if (!eventScheduleChronologyOk) { showErrorMessage(ProductManagementMessage.PRODUCT_SCHEDULE_OUT_OF_ORDER); } } }

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  • JNDI InvalidnameException for CN 'LastName, FirstName'

    - by user321524
    Hi: I am writing to active directory using JNDI, it is successful for "CN=Yuri Gagarin,OU=Admins,DC=ead,DC=ubc,DC=ca"; but fails for "CN=Gagarin, Yuri,OU=Admins,DC=ead,DC=ubc,DC=ca". I need to store displayName, cn, name in the format 'lastName, FirstName'. What do I need to do to get this going? Thanks very much.

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  • How did I center a jpanel in a jpanel with netbeans?

    - by Jim Nordlander
    With Netbeans I've succeded center a jpanel with fixed size, within an other jpanel. Now I can't repeat it - only copy it. How did I do? (or should I do to center x and y a jpanel with fixed size in another jpanel). The result differs in code: Working - search for .addContainerGap( and see next not working: javax.swing.GroupLayout center3Layout = new javax.swing.GroupLayout(center3); center3.setLayout(center3Layout); center3Layout.setHorizontalGroup( center3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGap(0, 1064, Short.MAX_VALUE) .addGroup(center3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(center3Layout.createSequentialGroup() .addContainerGap(30, Short.MAX_VALUE) .addComponent(mainPanel3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addContainerGap(30, Short.MAX_VALUE))) ); center3Layout.setVerticalGroup( center3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGap(0, 650, Short.MAX_VALUE) .addGroup(center3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(center3Layout.createSequentialGroup() .addContainerGap(23, Short.MAX_VALUE) .addComponent(mainPanel3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addContainerGap(23, Short.MAX_VALUE))) ); Not working - search for .addGap compared with above working. javax.swing.GroupLayout center2Layout = new javax.swing.GroupLayout(center2); center2.setLayout(center2Layout); center2Layout.setHorizontalGroup( center2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGap(0, 1073, Short.MAX_VALUE) .addGroup(center2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(center2Layout.createSequentialGroup() .addGap(0, 34, Short.MAX_VALUE) .addComponent(mainPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addGap(0, 35, Short.MAX_VALUE))) ); center2Layout.setVerticalGroup( center2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGap(0, 654, Short.MAX_VALUE) .addGroup(center2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(center2Layout.createSequentialGroup() .addGap(0, 25, Short.MAX_VALUE) .addComponent(mainPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addGap(0, 25, Short.MAX_VALUE))) ); I've looked side by side in properties etc - please help! :)

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  • How to add the coding for displaying the address when a particular set of latitude and longitude is

    - by KKC
    import com.google.android.maps.GeoPoint; import com.google.android.maps.MapActivity; import com.google.android.maps.MapController; import com.google.android.maps.MapView; import android.os.Bundle; import android.view.KeyEvent; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.Spinner; import android.widget.AdapterView.OnItemSelectedListener; public class PopularAttractions extends MapActivity { private String[ ][ ] locations = { {"Singapore Zoological Garden","1.40502,103.793449"}, {"Singapore Night Safari","1.4037,103.789467"}, {"Jurong BirdPark","1.32005,103.707153"}, {"Jurong Reptile Park","1.321177,103.708486"}, {"Singapore Botanic Garden","1.31471,103.815689"}, {"Sungei Buloh Wetland Reserver","1.445144,103.729595"}, {"Escape Theme Park","1.38104,103.936928"}, {"Snow City","1.32823,103.74263"}, {"Super Ice World","1.300422,103.875348"}, {"Chinatown Heritage Center","1.2836,103.84425"}, {"Singapore Science Center","1.3249,103.740578"}, {"Red Dot Design Museum","1.277762,103.846225"}, {"G-Max Reverse Bungy","1.2906,103.845322"}, {"NEWater Visitor Center","1.33105,103.955311"} }; private Spinner spinnerView; private MapView mapView; private MapController mc; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); spinnerView = (Spinner) this.findViewById(R.id.spinner1); mapView = (MapView) findViewById(R.id.mapview1); mc = mapView.getController(); ArrayAdapter<CharSequence> adapter = new ArrayAdapter<CharSequence>(this, android.R.layout.simple_spinner_dropdown_item); //--add the various locations--- for(int i = 0; i < locations.length; i++) adapter.add(locations[i][0]); adapter.setDropDownViewResource( android.R.layout.simple_spinner_dropdown_item); spinnerView.setAdapter(adapter); spinnerView.setOnItemSelectedListener(selectListener); gotoSelected(); } //---when user selects an item--- private OnItemSelectedListener selectListener = new OnItemSelectedListener() { //---these are two methods you need to implement--- public void onItemSelected( AdapterView<?>parent, View v, int position, long id) { gotoSelected(); } public void onNothingSelected(AdapterView<?> arg0) {} }; //---when an item has been selected--- public void gotoSelected() { int index = spinnerView.getSelectedItemPosition(); String[] coordinates = locations[index][1].split(","); double lat = Double.parseDouble(coordinates[0]); double lng = Double.parseDouble(coordinates[1]); GeoPoint location = new GeoPoint ( (int)(lat * 1E6), (int)(lng * 1E6)); mc.animateTo(location); mc.setZoom(16); if (mapView.isSatellite()) mapView.setSatellite(false); else mapView.setStreetView(true); mapView.invalidate(); } public boolean onKeyDown(int keyCode, KeyEvent event) { MapController mc = mapView.getController(); switch (keyCode) { case KeyEvent.KEYCODE_3: mc.zoomIn(); break; case KeyEvent.KEYCODE_1: mc.zoomOut(); break; } return super.onKeyDown(keyCode, event); } @Override protected boolean isRouteDisplayed(){ //TODO Auto-generated method sub return false; } }

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