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  • Progress Dialog in Android doesn't Show?

    - by Tyler
    Okay.. I am doing something similar to the below: private void onCreate() { final ProgressDialog dialog = ProgressDialog.show(this, "Please wait..", "Doing stuff..", true); Thread t = new Thread() { public void run() { //do some serious stuff... dialog.dismiss(); } }; t.start(); t.join(); stepTwo(); } However, what I am finding is that my progress dialog never even shows up. My App stalls for a moment so I know it is chugging along inside of thread t, but why doesnt my dialog appear? IF I remove the line: t.join(); Then what I find happens is that the progress dialog does show up, but my app starts stepTwo(); before what happens in the thread is complete.. Any ideas?

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  • How to make an entity out of a join table without primary key

    - by tputkonen
    I'm trying to generate JPA entities out of an existing database having an "interesting" design. Database has a table called UserSet, which can have links to several other UserSets. There is a one to many relation between UserSets and LinkedUserSets. LinkedUserSets also has one to one relation to UserSets. I tried to generate a JPA Entity out of the database structure using Dali JPA Tools. The resulting entity Linkeduserset misses @Id or @EmbeddedId annotation and thus failes to compile. As the resulting entity contains only two @JoinColumns (which cannot be marked as @Id), I have not so far found a way around this issue. Database structure can not be modified in any way. Is there a way to overcome this somehow? Relevant pars of create table statements: CREATE TABLE `LinkedUserSets` ( `UsrSetID` INT(11) NOT NULL DEFAULT '0' , `ChildID` INT(11) NOT NULL DEFAULT '0' , CONSTRAINT `fk_LinkedUserSets_UserSet1` FOREIGN KEY (`UsrSetID` ) REFERENCES `UserSet` (`UsrSetID` )); CREATE TABLE `UserSet` ( `UsrSetID` INT(11) NOT NULL AUTO_INCREMENT , PRIMARY KEY (`UsrSetID`), CONSTRAINT `fk_UserSet_LinkedUserSets1` FOREIGN KEY (`UsrSetID` ) REFERENCES `LinkedUserSets` (`ChildID` )); Generated entities: @Entity @Table(name="linkedusersets") public class Linkeduserset { //bi-directional many-to-one association to Userset @ManyToOne @JoinColumn(name="UsrSetID") private Userset userset1; //bi-directional one-to-one association to Userset @OneToOne @JoinColumn(name="ChildID") private Userset userset2; } @Entity @Table(name="userset") public class Userset { private static final long serialVersionUID = 1L; @Id @Column(name="UsrSetID") private int jngSetID; //bi-directional many-to-one association to Linkeduserset @OneToMany(mappedBy="userset1") private Set<Linkeduserset> linkedusersets; //bi-directional one-to-one association to Linkeduserset @OneToOne(mappedBy="userset2") private Linkeduserset linkeduserset; } Error message: Entity "Linkeduserset" has no Id or EmbeddedId

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  • Is it possible to build a JPA entity by extending a POJO?

    - by Freiheit
    Lets say I have the following POJO: public class MyThing { private int myNumber; private String myData; //assume getter/setter methods } Is it now possible to extend this POJO as a JPA entity? @Entity @Table(name = "my_thing") public class MyThingEntity extends MyThing implements Serializable { @Column(name = "my_number") //????????? @Column(name = "my_data") //???????? } I want to keep the POJO separate from the JPA entity. The POJO lives in a different project and is often used without a persistence layer, my project wants to persist it in a database and do so without the overhead of mapping from a POJO to an entity and back. I understand that JPA entities are POJOs, but in order to use it I would have to include a library that implements javax.persistence and the other projects using the same base object have no use for a persistence layer. Is this possible? Is this a good idea?

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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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  • How Does Ctrl-K work in Stackoverflow

    - by harigm
    I am very curious to know how to implement the Ctrl-K feature against code, For sample public static void main(Stirng args[]){ System.out.println.out("welcome"); } That will be nicely formatted? 1)Do we require any package to implement this? 2) Any ready made code avaialble to do this? Can any one help me with this, I am planning to develop a site where this feature would be a real helpful.

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  • Parsing line and selecting values corresponding to a key

    - by gagneet
    there is a set of data which is arranged in a specific manner (as a tree), as is given below. basically a key=value pair, with some additional values at the end, which informs how many children does the branch have and some junk value. 11=1 123 2 11=1>1=45 234 1 11=1>1=45>9=16 345 1 11=1>1=45>9=16>2=34 222 1 11=1>1=45>9=16>2=34>7=0 2234 1 11=1>1=45>9=16>2=34>7=0>8=0 22345 1 11=1>1=45>9=16>2=34>7=0>8=0>0=138 22234 1 11=1>1=45>9=16>2=34>7=0>8=0>0=138>5=0 5566 1 11=1>1=45>9=16>2=34>7=0>8=0>0=138>5=0>4=0 664 1 11=1>1=45>9=16>2=34>7=0>8=0>0=138>5=0>4=0>6=10 443 1 11=1>1=45>9=16>2=34>7=0>8=0>0=138>5=0>4=0>6=10>3=11 445 0 11=1>1=47 4453 1 11=1>1=47>9=16 887 1 11=1>1=47>9=16>2=34 67 1 11=1>1=47>9=16>2=340>7=0 98 1 11=1>1=47>9=16>2=34>7=0>8=0 654 1 11=1>1=47>9=16>2=34>7=0>8=0>0=138 5789 1 11=1>1=47>9=16>2=34>7=0>8=0>0=138>5=0 9870 1 11=1>1=47>9=16>2=34>7=0>8=0>0=138>5=0>4=0 3216 1 11=1>1=47>9=16>2=34>7=0>8=0>0=138>5=0>4=0>6=10>3=11 66678 0 my problem is to get the appropriate branch from the above data, which satisfies exactly the values, which i give as the input. suppose, my input value to search in the above data stack are: 5=0 4=0 6=10 3=11 11=1 1=45 0=138 9=16 2=34 7=0 8=0 for the above given list of key-values, the function should return 11=11=459=162=347=08=00=1385=04=06=103=11 as the match. likewise, for another input file, in which another set of keys is given: 5=0 4=0 6=10 3=11 11=1 1=45 9=16 2=34 7=0 8=0 the function should return 11=11=459=162=347=08=0 1 as the match. not the last line; as that would also match all the values given in my input key, but, i want only the exact match. Also, I want to find out how many nodes were selected in the given array. (separated by ). What will be the best way to implement this kind of scenario?

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  • How can I spoof a jndi lookup for a datasource without a app server

    - by Wiszh
    I want to test some new functionality which is part of an internal web app. This new code uses a database connection normally provided by an app server (tomcat). I do not want to recreate the entire web app on my local machine to test the new code, since I only need to run one function. Does anyone know how I can 'spoof' a Context, or Datasource, to retrieve the database config, without actually creating a web app instance on a server? Thanks

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  • How to develop a Nightly Builder

    - by allenzzzxd
    Hello, I was told to create a tool like a Nightly Builder for a JUnit project. It's a client-server project with oracle database.The tests are based on QTP. Also there is a test interface written on C#. The tester can click on the interface to choose which tests to run and get a report from each test. So I have to make this procedure automated. So what tools should I use? Thanks in advance Best regards

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  • Castor: how to map a simple list of strings?

    - by Dmitriy
    I have the following field in my class: private List<String> messages; Here's the mapping I have: <field name="messages" collection="arraylist" type="string" container="false> <bind-xml name="errors" node="element"/> </field> This is what I get as a result of marshalling: <errors><string>message1</string><string>message2</string></errors> And this is what I want to achieve: <errors><error>message1</error><error>message2</error></errors> Any help is appreciated!

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  • JPanel.addComponentListener does not work when the listener is a class variable

    - by Coder
    I have a public class which has the following method and instance variable: public void setImagePanel(JPanel value) { imagePanel = value; if (imagePanel != null) { //method 1 : works imagePanel.addComponentListener(new ComponentAdapter() { public void componentResized(ComponentEvent evt) { System.out.println("Here 1"); } }); //method 2 : does not work panelResizeListener = new ResizeListener(); imagePanel.addComponentListener(panelResizeListener); //method 3 : works //ResizeListener listener = new ResizeListener(); //imagePanel.addComponentListener(listener); //method 4 : works //imagePanel.addComponentListener(new ResizeListener()); //method 5 : does not work -- THIS IS THE DESIRED CODE I WANT TO USE imagePanel.addComponentListener(panelResizeListener); } } public class ResizeListener extends ComponentAdapter { @Override public void componentResized(ComponentEvent evt) { System.out.println("RESIZE 3"); } } private ResizeListener panelResizeListener = new ResizeListener(); Each of the methods above correspond the to code immediately below until the next //method comment. What i don't understand is why i can't use the class instance variable and add that to the JPanel as a component listener. What happens in the cases above where i say that the method does not work is that i don't get the "RESIZE 3" log messages. In all cases where i list that it works, then i get the "RESIZE 3" messages. The outer class is public with no other modification except that it implements an interface that i created (which has no methods or variables in common with the methods and variables listed above). If anyone can help me i would greatly appreciate it. This problem makes no sense to me, the code should be identical.

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  • Converting a string to an integer (Android)

    - by James Rattray
    I'm not 100% on how to do this so i'm asking... May seem stupid but... How do I convert a string into an integer? Background info: I have a textbox I have the user enter a number into... it then: EditText et = (EditText) findViewById(R.id.entry1); String hello = et.getText().toString(); gets the string 'hello' Now I want to convert it to a integer so I can get the number they typed in -will be used later on in code... Is there a way to get the edittext to a integer? -That would skip the middle man... If not, string to integer will be just fine... Thanks alot, James

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  • How do I create a custom text field in Tapestry5 that renders some Javascript onto the page?

    - by shane87
    I have been trying to create a custom textfield in tapestry which will render some javascript when it gains focus. But I have been having trouble trying to find an example of this. Here is some of the code i have started off with: package asc.components; import org.apache.tapestry5.ComponentResources; import org.apache.tapestry5.Field; import org.apache.tapestry5.annotations.Parameter; import org.apache.tapestry5.ioc.annotations.Inject; import org.apache.tapestry5.services.ComponentDefaultProvider; public class DahserTextField implements Field { @Parameter (defaultPrefix = "literal") private String label; @Inject private ComponentResources resources; @Inject private ComponentDefaultProvider defaultProvider; @Parameter private boolean disabled; @Parameter private boolean required; String defaultLabel(){ return defaultProvider.defaultLabel(resources); } public String getControlName() { return null; } public String getLabel() { return label; } public boolean isDisabled() { return disabled; } public boolean isRequired() { return required; } public String getClientId() { return resources.getId(); } } I have been unsure on what to do next. I do not know what to put into the .tml file. I would be grateful if anyone could help or point me in the right direction.

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  • Constructor in a Interface?

    - by Sebi
    I know its not possible to define a constructor in a interface. But im wondering why, because i think i could be very useful. So you could be sure that some fields in a class are defined for every implementaiton of this interface. For example consider the following message class: public class MyMessage { public MyMessage(String receiver) { this.receiver = receiver; } private String receiver; public void send() { //some implementation for sending the mssage to the receiver } } If a define a Interface for this class so that i can have more classes which implement the message interface, i can only define the send method and not the constructor. So how can i assure that every implementation of this class really has an receiver setted? If i use a method like setReceiver(String receiver) i can't be sure that this method is really called. In the constructor i could assure it.

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  • No exception, no error, still i dont recieve the json object from my http post

    - by user2978538
    My source code: final Thread t = new Thread() { public void run() { Looper.prepare(); HttpClient client = new DefaultHttpClient(); HttpConnectionParams.setConnectionTimeout(client.getParams(), 10000); HttpResponse response; JSONObject obj = new JSONObject(); try { HttpPost post = new HttpPost("http://pc.dyndns-office.com/mobile.asp"); obj.put("Model", ReadIn1); obj.put("Product", ReadIn2); obj.put("Manufacturer", ReadIn3); obj.put("RELEASE", ReadIn4); obj.put("SERIAL", ReadIn5); obj.put("ID", ReadIn6); obj.put("ANDROID_ID", ReadIn7); obj.put("Language", ReadIn8); obj.put("BOARD", ReadIn9); obj.put("BOOTLOADER", ReadIn10); obj.put("BRAND", ReadIn11); obj.put("CPU_API", ReadIn12); obj.put("DISPLAY", ReadIn13); obj.put("FINGERPRINT", ReadIn14); obj.put("HARDWARE", ReadIn15); obj.put("UUID", ReadIn16); StringEntity se = new StringEntity(obj.toString()); se.setContentType(new BasicHeader(HTTP.CONTENT_TYPE, "application/json")); post.setEntity(se); post.setHeader("host", "http://pc.dyndns-office.com/mobile.asp"); response = client.execute(post); if (response != null) { InputStream in = response.getEntity().getContent(); } } catch (Exception e) { e.printStackTrace(); } Looper.loop(); } }; t.start(); } } i want to send an Json object to a Website. As far as I can see, I set the header, but still I get this exception, can someone help me? (I'm using Android-Studio) __ Edit: i don't get any exceptions anymore, but still i do not receive the json packet. When i manually call the website i get a log file entry. Does anyone know, what's wrong? Edit2: When i debug i get as response "HTTP/1.1 400 bad request" i'm sure its not an permission problem. Any ideas?

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  • How do I migrate a ManyToOne to a ManyToMany relationship in Hibernate?

    - by spderosso
    I have a instance field of a class X that is mapped using Hibernate as a Many to One relationship. E.g: public class X{ ... @ManyToOne(optional=false) private Y iField; ... } That is correctly working with a particular schema. I know want to change this instance field iField to a List and a Many to Many relationship. public class X{ ... @ManyToMany(optional=false) private List<Y> iField; ... } What steps should I follow? Do I have to change the schema? in which way? In case you need more info let me know. Thanks!

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  • How to shuffle pairs

    - by Jessy
    How to shuffle the elements in the pairs? The program below, generate all possible pairs and later shuffle the pairs. e.g. possible pairs before shuffle is ab,ac,ae,af..etc shuffled to ac,ae,af,ab...etc How to make it not only shuffled in pairs but within the elements in the pair itself? e.g. instead of ab, ac, how can I make ba, ac ? String[] pictureFile = {"a.jpg","b.jpg","c.jpg","d.jpg","e.jpg","f.jpg","g.jpg"}; List <String> pic1= Arrays.asList(pictureFile); ... ListGenerator pic2= new ListGenerator(pic1); ArrayList<ArrayList<Integer>> pic2= new ArrayList<ArrayList<Integer>>(); public class ListGenerator { public ListGenerator(List<String> pic1) { int size = pic1.size(); // create a list of all possible combinations for(int i = 0 ; i < size ; i++) { for(int j = (i+1) ; j < size ; j++) { ArrayList<Integer> temp = new ArrayList<Integer>(); temp.add(i); temp.add(j); pic2.add(temp); } } Collections.shuffle(pic2); } //This method return the shuffled list public ArrayList<ArrayList<Integer>> getList() { return pic2; } }

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  • Can't create EntityManager

    - by bovo
    New to EJB3, please help/explain. Inside a session bean I declare an EntityManager as follow @PersistenceContext(unitName="ScheduleUnit") private EntityManager em; and this works. But when I do this private EntityManager em; private EntityManagerFactory emf; public void myFunction() { emf = Persistence.createEntityManagerFactory("ScheduleUnit"); em = emf.createEntityManager(); } I get the following error: A JDBC Driver or DataSource class name must be specified in the ConnectionDriverName property

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  • Jar dependencies to use jetty httpclient

    - by Alfred
    Hi all, I want to use the jetty httpclient(in netbeans) but have the least number of jar dependencies. I know I can import all jars from the jetty lib folder to my project but I would like to know what the minimum number of dependencies are and how you did find this out? Our there tools to find jar dependencies?

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  • Tomcat reporting 404 error on all of newly deployed WAR files?

    - by dacracot
    I deployed a WAR file into $TOMCAT_HOME/webapps by copying the file into the directory, just like I've done a thousand times before. Tomcat detects the WAR and inflates it. I can traverse the directory tree on my server at the command line (it's Fedora). But when I address the webapp within my client machine's browser, I get nothing but 404 errors. This has happened to the last two deployments of completely separate WARs. The first was a replacement of an existing WAR. I first deleted the WAR and its inflated directory, and then copied in the WAR which inflated... 404. I deleted everything again, put back the previously working WAR from backup. It inflated and worked. The second was a completely new, never before deployed WAR... nothing but 404. Other WARs are working, but now I'm afraid to change anything until I know what is going on. Any clues? Edit: From my comment you can see that the logs included "SEVERE: Error listenerStart" after the WAR was deployed by Tomcat. There were no stack traces or other errors reported.

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  • in a J2EE application when does a listener get called?

    - by josh
    I have a J2EE app and it has a listener in web.xml. Listener contains a method called contextInitialized I want to know when does contextInitialized actually get called? From my reading I understand that it gets called when deploying the application. Can there be situations/scenario's where it could be called after the application has been deployed? Say that I am in a Clustered GlassFish app server environment. Could it be called after the application has been deployed?

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