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  • JBoss ignores @RemoteBinding annotation

    - by tputkonen
    I would like to specify JNDI name for an EJB3 bean using annotation, but JBoss 5.1.0 GA seems to ignore the annotation completely. Bean's annotations are: @Remote(Foobar.class) @Stateless(name = "Foobar") @TransactionManagement(TransactionManagementType.BEAN) @RemoteBinding(jndiBinding="ejb/Foobar") public class FoobarBean implements Foobar { ... I tested deploying also using @RemoteBindings annotation, but the result was same: @RemoteBindings({@RemoteBinding(jndiBinding="ejb/Foobar")}) The bean does not get bound to JNDI with the specified name, and the log file doesn't give any clues.

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  • Setting ViewController delegates in iPhone runtime

    - by Stein Rune Risa
    I am writing an iPhone application and needed to use the address book functionality. For this to work, it is necessary to specify a ABPeoplePickerNavigationControllerDelegate on the ViewController. The problem is that I am creating all fields and buttons dynamically runtime, and thus does not have any custom ViewController - using only UIViewController class. My question is then - how can I specify the delegate runtime without having to create a ViewController class just for this purpose.

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  • JQuery overriding the themeroller style

    - by Paul Connolly
    Hi, In my accordian control I want to override the header style to show a red background instead of the default theme colour if ever the user control (e.g user's name and address input) in that particular pane returns a validation boolean of false. I'm ok with how to use .Toggle to change the class but can't figure out how to grab the themeroller class in the first place. How would I do this? Thanks Paul

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  • Why "import javax.jdo.* "caused error ?

    - by Frank
    I have a class uses the following lines, it works fine in a Google App Engine project: import javax.jdo.annotations.IdGeneratorStrategy; import javax.jdo.annotations.IdentityType; import javax.jdo.annotations.PersistenceCapable; import javax.jdo.annotations.Persistent; import javax.jdo.annotations.PrimaryKey; But when I included this class in another project, it cause error : package javax.jdo.annotations does not exist What should I do to find javax.jdo.* ? Frank

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  • Delete manytomanyfield in Django

    - by Mike
    I have the following models class Database(models.Model): user = models.ForeignKey(User) name = models.CharField(max_length=100) created = models.DateTimeField(auto_now_add=True) updated = models.DateTimeField(auto_now=True) class DatabaseUser(models.Model): user = models.ForeignKey(User) name = models.CharField(max_length=100) password = models.CharField(max_length=100) database = models.ManyToManyField(Database) created = models.DateTimeField(auto_now_add=True) updated = models.DateTimeField(auto_now=True) One DatabaseUser can have many Databases under it's control. The issue I have if I go to delete a Database it wants to Delete the DatabaseUser also.. Is there a way to stop this from happening easily?

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  • Selenium Testing

    - by Joakim
    Hi I want to get a bunch of dom-objects with xpath and loop through those to check if they contains a specified text, is this possible in the Selenium IDE or rc? Perl is my prefered language XPath would be something like xpath=//tbody[@class='table-data']/tr/td/div[@class='table-item'] This would return all row items in the table, but i need to check each div if contains a specified text string. Is this possible with Selenium? Best regards

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  • How to represent different entities that have identical behavior?

    - by Dominik
    I have several different entities in my domain model (animal species, let's say), which have a few properties each. The entities are readonly (they do not change state during the application lifetime) and they have identical behavior (the differ only by the values of properties). How to implement such entities in code? Unsuccessful attempts: Enums I tried an enum like this: enum Animals { Frog, Duck, Otter, Fish } And other pieces of code would switch on the enum. However, this leads to ugly switching code, scattering the logic around and problems with comboboxes. There's no pretty way to list all possible Animals. Serialization works great though. Subclasses I also thought about where each animal type is a subclass of a common base abstract class. The implementation of Swim() is the same for all Animals, though, so it makes little sense and serializability is a big issue now. Since we represent an animal type (species, if you will), there should be one instance of the subclass per application, which is hard and weird to maintain when we use serialization. public abstract class AnimalBase { string Name { get; set; } // user-readable double Weight { get; set; } Habitat Habitat { get; set; } public void Swim(); { /* swim implementation; the same for all animals but depends uses the value of Weight */ } } public class Otter: AnimalBase{ public Otter() { Name = "Otter"; Weight = 10; Habitat = "North America"; } } // ... and so on Just plain awful. Static fields This blog post gave me and idea for a solution where each option is a statically defined field inside the type, like this: public class Animal { public static readonly Animal Otter = new Animal { Name="Otter", Weight = 10, Habitat = "North America"} // the rest of the animals... public string Name { get; set; } // user-readable public double Weight { get; set; } public Habitat Habitat { get; set; } public void Swim(); } That would be great: you can use it like enums (AnimalType = Animal.Otter), you can easily add a static list of all defined animals, you have a sensible place where to implement Swim(). Immutability can be achieved by making property setters protected. There is a major problem, though: it breaks serializability. A serialized Animal would have to save all its properties and upon deserialization it would create a new instance of Animal, which is something I'd like to avoid. Is there an easy way to make the third attempt work? Any more suggestions for implementing such a model?

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  • Custom string formatting in Grails JSON marshaller

    - by ethaler
    I am looking for a way to do some string formatting through Grails JSON conversion, similar to custom formatting dates, which I found in this post. Something like this: import grails.converters.JSON; class BootStrap { def init = { servletContext -> JSON.registerObjectMarshaller(String) { return it?.trim() } } def destroy = { } } I know custom formatting can be done on a per domain class basis, but I am looking for a more global solution.

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  • php require and autoload

    - by dfilkovi
    I use __autoload to load classes, and I keep getting errors that no class is found but file get's loaded ok. Then if I change something in a file, just something like add a new line and save it, everything works fine and class is then found. But this is a great problem cause there are thousands of files in this project and I don't want to change them one by one. I'm using php 5.3.0 on windows. What could be the problem?

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  • Is it a bad practice to pass "this" as an argument?

    - by Anna Lear
    I'm currently tempted to write the following: public class Class1() { public Class1() { MyProperty = new Class2(this); } public Class2 MyProperty { get; private set; } } public class Class2() { public Class2(Class1 class1) { ParentClass1 = class1; } public Class1 ParentClass1 { get; set; } } Is passing "this" as an argument a sign of a design problem? What would be a better approach?

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  • How to make custom join query with Django ?

    - by xRobot
    I have these 2 models: genre = ( ('D', 'Dramatic'), ('T', 'Thriller'), ('L', 'Love'), ) class Book(models.Model): title = models.CharField(max_length=100) genre = models.CharField(max_length=1, choices=genre) class Author(models.Model): user = models.ForeignKey(User, unique=True) born = models.DateTimeField('born') book = models.ForeignKey(Book) I need to retrieve first_name and last_name of all authors of dramatic's books. How can I do this in django ?

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  • How do i assert my exception message with JUNIT Test annotation ?

    - by Cshah
    i have written a few junits with @Test annotation. If my test method throws a checked exception and if i want to assert the message along with the exception, is there a way to do so with JUNIT @Test annotation.AFAIK, Junit 4.7 doesnt provide this feature but does any future versions provide it. I know in .NET you can assert the message and the exception class. Looking for similar feature in the java world. This is what i want @Test (expected = RuntimeException.class, message = "Employee ID is null") public void shouldThrowRuntimeExceptionWhenEmployeeIDisNull() { }

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  • Java: random long number in 0 <= x < n range.

    - by Vilius Normantas
    Random class has a method to generate random int in a given range. For example: Random r = new Random(); int x = r.nextInt(100); This would generate an int number more or equal to 0 and less than 100. I'd like to do exactly the same with long number. long y = magicRandomLongGenerator(100); Random class has only nextLong(), but it doesn't allow to set range.

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  • launching mapview from main activity (button)

    - by arc
    Hi all. Going round in circles here i think. I have an activity called Locate; public class Locate extends Activity { public static String lat; public static String lon; public static String number; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.locate); final Button buttonMaps = (Button) findViewById(R.id.ButtonMaps); buttonMaps.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { Toast.makeText(getBaseContext(), "Button Pressed", Toast.LENGTH_SHORT).show(); try { Intent i = new Intent(getBaseContext(), displayMap.class); i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(i); } catch (ActivityNotFoundException e) { Toast.makeText(getBaseContext(), "Activity Not Found", Toast.LENGTH_SHORT).show(); } }}); // Toast.makeText(getBaseContext(), "lat: " + lat + " long: " + lon + " from: " + testname, Toast.LENGTH_LONG).show(); } If I make the displayMap class into a normal Activity, and just have display a toast message confirming it has loaded - then it works fine. If i do this though; public class displayMap extends MapActivity { /** Called when the activity is first created. */ public void onCreate() { setContentView(R.layout.displaymap); Toast.makeText(getBaseContext(), "Display Map", Toast.LENGTH_SHORT).show(); } @Override protected boolean isRouteDisplayed() { // TODO Auto-generated method stub return false; } } Then as soon as I click the Button, I get a force close. I have the correct 'uses-library' tag in my manifest; <application android:icon="@drawable/icon" android:label="@string/app_name"> <uses-library android:name="com.google.android.maps" /> I don't get what it just force closes everytime i try and load it. If I make this my onClick handler then it will fire up a working googlemaps/default mapview public void onClick(View v) { Toast.makeText(getBaseContext(), "Button Pressed", Toast.LENGTH_SHORT).show(); Uri uri=Uri.parse("geo:"+Locate.lat+","+Locate.lon); StartActivity(new Intent(Intent.ACTION_VIEW, uri)); } But that is not what I am trying to do, I want my own - so that I can add overlays etc to it. But it does prove that the permission are set correctly and that the lib is there. The logcat error when the app FCs is a Unexpected DEX error. Can anyone point in the right direction here?

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  • Please Critique Code (Java, Java2D, javax.swing.Timer)

    - by Trizicus
    Learn by practice right? Please critique and suggest anything! Thanks :) import java.awt.EventQueue; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import java.awt.event.MouseMotionListener; import javax.swing.JFrame; public class MainWindow { public static void main(String[] args) { new MainWindow(); } JFrame frame; GraphicsPanel gp = new GraphicsPanel(); MainWindow() { EventQueue.invokeLater(new Runnable() { public void run() { frame = new JFrame("Graphics Practice"); frame.setSize(680, 420); frame.setVisible(true); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); gp.addMouseListener(new MouseListener() { public void mouseClicked(MouseEvent e) {} public void mousePressed(MouseEvent e) {} public void mouseReleased(MouseEvent e) {} public void mouseEntered(MouseEvent e) {} public void mouseExited(MouseEvent e) {} }); gp.addMouseMotionListener(new MouseMotionListener() { public void mouseDragged(MouseEvent e) {} public void mouseMoved(MouseEvent e) {} }); frame.add(gp); } }); } } GraphicsPanel: import java.awt.BorderLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JPanel; import javax.swing.Timer; public class GraphicsPanel extends JPanel { Test t; Timer test; GraphicsPanel() { t = new Test(); setLayout(new BorderLayout()); add(t, BorderLayout.CENTER); test = new Timer(17, new Gameloop(this)); test.start(); } class Gameloop implements ActionListener { GraphicsPanel gp; Gameloop(GraphicsPanel gp) { this.gp = gp; } public void actionPerformed(ActionEvent e) { try { t.incX(); gp.repaint(); } catch (Exception ez) { } } } } Test: import java.awt.Color; import java.awt.Dimension; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Image; import java.awt.Toolkit; import javax.swing.JComponent; public class Test extends JComponent { Toolkit tk; Image img; int x, y; Test() { tk = Toolkit.getDefaultToolkit(); img = tk.getImage(getClass().getResource("images.jpg")); this.setPreferredSize(new Dimension(15, 15)); } @Override public void paintComponent(Graphics g) { super.paintComponent(g); Graphics2D g2d = (Graphics2D) g.create(); g2d.setColor(Color.red); g2d.drawString("x: " + x, 350, 50); g2d.drawImage(img, x, 80, null); g2d.dispose(); } public void incX() { x++; } }

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  • How to deserialize an object with pyYaml using safe_load?

    - by systempuntoout
    Having a snippet like this: import yaml class User(object): def __init__(self, name, surname): self.name= name self.surname= surname user = User('spam', 'eggs') serialized_user = yaml.dump(user) #Network deserialized_user = yaml.load(serialized_user) print "name: %s, sname: %s" % (deserialized_user.name, deserialized_user.surname) Yaml docs says that it is not safe to call yaml.load with any data received from an untrusted source; so, what do i need to modify to my snippet\class to use safe_load method? Is it possible?

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  • Sun permgen & JRockit garbage collection

    - by Striker
    In the Sun JVM, classes that are loaded by the class loader are put in permgen space and never gc'd. (Unless the class loader goes out of scope) It's my understanding that JRockit puts that same data on the heap instead. Is that data then subject to garbage collection? Thanks.

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  • Spring, Jersey and Viewable JSP Integration

    - by Brian D.
    I'm trying to integrate Spring 3.0.5 with Jersey 1.4. I seem to have everything working, but whenever I try and return a Viewable that points to a JSP, I get a 404 error. When I wasn't using spring I could use this filter: <filter> <filter-name>Jersey Filter</filter-name> <filter-class>com.sun.jersey.spi.container.servlet.ServletContainer</filter-class> <init-param> <param-name>com.sun.jersey.config.feature.Redirect</param-name> <param-value>true</param-value> </init-param> <init-param> <param-name>com.sun.jersey.config.property.packages</param-name> <param-value>cheetah.frontend.controllers</param-value> </init-param> <init-param> <param-name>com.sun.jersey.config.feature.FilterForwardOn404</param-name> <param-value>true</param-value> </init-param> <init-param> <param-name>com.sun.jersey.config.property.WebPageContentRegex</param-name> <param-value>/(images|css|jsp)/.*</param-value> </init-param> </filter> And I could return a Viewable to any JSP's, image, css that were stored in the appropriate folder. However, now that I have to use the SpringServlet to get spring integration, I'm at a loss for how to access resources, since I can't use the filter above. I've tried using this servlet mapping with no luck: <servlet> <servlet-name>jerseyspring</servlet-name> <servlet-class>com.sun.jersey.spi.spring.container.servlet.SpringServlet</servlet-class> <load-on-startup>1</load-on-startup> <init-param> <param-name>com.sun.jersey.config.property.WebPageContentRegex</param-name> <param-value>/(images|css|jsp)/.*</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>jerseyspring</servlet-name> <url-pattern>/*</url-pattern> </servlet-mapping> Does anyone know the proper configurations to achieve this? Thanks for any help.

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  • WPF: change binding properties for multiple controls

    - by Catalin DICU
    I'd like that all the Text bindings for the TextBoxes in my UserControl to have UpdateSourceTrigger=PropertyChanged, and ValidatesOnDataErrors=True How to do it ? I can think of a solution: use another class for bindings (a class inheriting Binding) but maybe there is another solution, maybe using a style or template ?

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  • Can immutable be a memory hog?

    - by ciscoheat
    Let's say we have a memory-intensive class like an Image, with chainable methods like Resize() and ConvertTo(). If this class is immutable, won't it take a huge amount of memory when I start doing things like i.Resize(500, 800).Rotate(90).ConvertTo(Gif), compared to a mutable one which modifies itself? How to handle a situation like this in a functional language?

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  • Why am I getting a TypeLoadException when defining a custom profile?

    - by Jedidja
    I'm writing a .NET command-line application that will migrate users from an existing database into aspnetdb. To simplify the user-specific settings, I'm using the profile class that Joel Spolsky wrote about here. It works great in the ASP.NET MVC website, but for some reason it's throwing a TypeLoadException when being used from this new application. I'm not sure why the framework is trying to load the new class from System.Web.

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  • Unit Testing a Django Form with a FileField

    - by Jason Christa
    I have a form like: #forms.py from django import forms class MyForm(forms.Form): title = forms.CharField() file = forms.FileField() #tests.py from django.test import TestCase from forms import MyForm class FormTestCase(TestCase) def test_form(self): upload_file = open('path/to/file', 'r') post_dict = {'title': 'Test Title'} file_dict = {} #?????? form = MyForm(post_dict, file_dict) self.assertTrue(form.is_valid()) How do I construct the *file_dict* to pass *upload_file* to the form?

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  • Socket server with multiple clients, sending messages to many clients without hurting liveliness

    - by Karl Johanson
    I have a small socket server, and I need to distribute various messages from client-to-client depending on different conditionals. However I think I have a small problem with livelyness in my current code, and is there anything wrong in my approach: public class CuClient extends Thread { Socket socket = null; ObjectOutputStream out; ObjectInputStream in; CuGroup group; public CuClient(Socket s, CuGroup g) { this.socket = s; this.group = g; out = new ObjectOutputStream(this.socket.getOutputStream()); out.flush(); in = new ObjectInputStream(this.socket.getInputStream()); } @Override public void run() { String cmd = ""; try { while (!cmd.equals("client shutdown")) { cmd = (String) in.readObject(); this.group.broadcastToGroup(this, cmd); } out.close(); in.close(); socket.close(); } catch (Exception e) { System.out.println(this.getName()); e.printStackTrace(); } } public void sendToClient(String msg) { try { this.out.writeObject(msg); this.out.flush(); } catch (IOException ex) { } } And my CuGroup: public class CuGroup { private Vector<CuClient> clients = new Vector<CuClient>(); public void addClient(CuClient c) { this.clients.add(c); } void broadcastToGroup(CuClient clientName, String cmd) { Iterator it = this.clients.iterator(); while (it.hasNext()) { CuClient cu = (CuClient)it.next(); cu.sendToClient(cmd); } } } And my main-class: public class SmallServer { public static final Vector<CuClient> clients = new Vector<CuClient>(10); public static boolean serverRunning = true; private ServerSocket serverSocket; private CuGroup group = new CuGroup(); public void body() { try { this.serverSocket = new ServerSocket(1337, 20); System.out.println("Waiting for clients\n"); do { Socket s = this.serverSocket.accept(); CuClient t = new CuClient(s,group); System.out.println("SERVER: " + s.getInetAddress() + " is connected!\n"); t.start(); } while (this.serverRunning); } catch (IOException ex) { ex.printStackTrace(); } } public static void main(String[] args) { System.out.println("Server"); SmallServer server = new SmallServer(); server.body(); } } Consider the example with many more groups, maybe a Collection of groups. If they all synchronize on a single Object, I don't think my server will be very fast. I there a pattern or something that can help my liveliness?

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  • PHP & MySQL submit error message problem

    - by peakUC
    When I submit a new name and not a new avatar I get the following avatar error message Please upload a .gif, .jpeg, .jpg or .png image!. I want to be able to send a new name only without having to upload a new avatar each time I submit the form without getting the avatar error message Please upload a .gif, .jpeg, .jpg or .png image! can someone help me fix this problem? Here is the php code. if (isset($_POST['submitted'])) { $mysqli = mysqli_connect("localhost", "root", "", "sitename"); $dbc = mysqli_query($mysqli,"SELECT users.* FROM users WHERE user_id=3"); $first_name = mysqli_real_escape_string($mysqli, htmlentities(strip_tags($_POST['first_name']))); $user_id = '3'; if(isset($_FILES["avatar"]["name"]) && $_FILES['avatar']['size'] <= 5242880) { if($_FILES["avatar"]["type"] == "image/gif" || $_FILES["avatar"]["type"] == "image/jpeg" || $_FILES["avatar"]["type"] == "image/jpg" || $_FILES["avatar"]["type"] == "image/png" || $_FILES["avatar"]["type"] == "image/pjpeg") { if (file_exists("../members/" . $user_id . "/images/" . $_FILES["avatar"]["name"])) { echo '<p class="error">' . mysqli_real_escape_string($mysqli, htmlentities(strip_tags(basename($_FILES["avatar"]["name"])))) . ' already exists! '; } else if($_FILES["avatar"]["name"] == TRUE) { move_uploaded_file($_FILES["avatar"]["tmp_name"], "../members/" . $user_id . "/images/" . mysqli_real_escape_string($mysqli, htmlentities(strip_tags(basename($_FILES["avatar"]["name"]))))); $avatar = mysqli_real_escape_string($mysqli, htmlentities(strip_tags(basename($_FILES["avatar"]["name"])))); } } else if($_FILES["avatar"]["type"] != "image/gif" || $_FILES["avatar"]["type"] != "image/jpeg" || $_FILES["avatar"]["type"] != "image/jpg" || $_FILES["avatar"]["type"] != "image/png" || $_FILES["avatar"]["type"] != "image/pjpeg") { echo '<p class="error">Please upload a .gif, .jpeg, .jpg or .png image!</p>'; } } else if($_FILES['avatar']['size'] >= 5242880) { echo '<p class="error">Please upload a smaller pic!</p>'; } else if($_FILES["avatar"]["name"] == NULL) { $avatar = NULL; } if(isset($_FILES["avatar"]["name"]) && $_FILES['avatar']['size'] <= 5242880) { if (mysqli_num_rows($dbc) == 0) { $mysqli = mysqli_connect("localhost", "root", "", "sitename"); $dbc = mysqli_query($mysqli,"INSERT INTO users (user_id, first_name, avatar) VALUES ('$user_id', '$first_name', '$avatar')"); } if ($dbc == TRUE) { $dbc = mysqli_query($mysqli,"UPDATE users SET first_name = '$first_name', avatar = '$avatar' WHERE user_id = '$user_id'"); echo '<p class="changes-saved">Your changes have been saved!</p>'; } if (!$dbc) { print mysqli_error($mysqli); return; } } }

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