Order of initialization of the beans controlled in ADF

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• manage the issue of the bean

  Hey,.
  I have a model with a textfield to related to a managed bean. This bean manages registers a particular query executed for unnecessary change notifications during initialization. The bean to manage is in the scope of session and I have another class called the DCNListener (in the scope of session) that implements DatabaseChangeListener.
  
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  Can someone help me please in this issue
  
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  Hello

  the FacesContext is created by the FacesServlet. When you receive notification of changes, the request does not come from the FacesServlet and the teherefore that is no context. To get this working usecase, you would use of Active Data Services in Oracle JDeveloper 11 g. The active data service encapsulates the model of component (of the ADF Faces component) and push the change of customer data. The next JDeveloper 11 g release Patch Set 1 provides a proxy of ADS that you can use to update tables and other models in the collection. I've implemented the use case that you describe with that (using an internal version) and it works fine.

  Currently, to use ADS, you have to implement two interfaces to get this working. You can watch

  http://www.google.com/url?sa=t&source=web&ct=res&cd=1&ved=0CAkQFjAA&url=http%3A%2F%2Fwww.oracle.com%2Ftechnology%2Fpub%2Farticles%2Fjellema-googletalk.html&rct=j&q=Lucas+Jellema+Google+talk&ei=nxn4SsGkB4fosQPIuLXwCQ&usg=AFQjCNGgh0xHtABKz-nzUH1gEGTzgvjnvg

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  Creating a custom component I stumbled upon a question that I did not quite understand. Trying to understand with an example from Hello world, I got more confused...

  Definition of a control with a simple text property, CSS file defining the skin and the implementation of the skin. I tried to put a listener of changes on my control's text property in the constructor of the skin.

  When you create a sample test to create a control and by then setting the text, I was expecting the changes listener to be called. More importantly, when to print the value of the property, it still shows the initial empty string even though its value has clearly changed.

  I use Java 8 on Linux Mint Debian Edition.

  Here is the control itself:

  package javafxtest.label;
  
  import javafx.beans.property.SimpleStringProperty;
  import javafx.beans.property.StringProperty;
  import javafx.scene.control.Control;
  
  public class MyLabel extends Control {
      private final StringProperty text = new SimpleStringProperty(this, "text", "");
      
      public MyLabel() {
         this.getStyleClass().add(this.getClass().getSimpleName());
  
      }
      @Override
      protected String getUserAgentStylesheet() {
          return getClass().getResource("/javafxtest/label/"+getClass().getSimpleName()+".css").toExternalForm();
      }
  
      public String getText() {
          return text.get();
      }
  
      public void setText(String value) {
          text.set(value);
      }
  
      public StringProperty textProperty() {
          return text;
      }
  }
  

  The CSS file:

  .MyLabel {
      -fx-skin: "javafxtest.label.MyLabelSkin";
  }
  

  Skin:

  package javafxtest.label;
  
  import javafx.beans.value.ChangeListener;
  import javafx.beans.value.ObservableValue;
  import javafx.scene.control.Label;
  import javafx.scene.control.SkinBase;
  
  public class MyLabelSkin extends SkinBase<MyLabel> {
      
      private final Label label;
  
      public MyLabelSkin(MyLabel c) {
          super(c);
          label = new Label();
          c.textProperty().bind(label.textProperty());
          c.textProperty().addListener(new ChangeListener<String>(){
  
              @Override
              public void changed(ObservableValue<? extends String> ov, String t, String t1) {
                  System.out.println("Value changed");
              }
          });
          System.out.println("Text value of the control: "+c.getText());
      }
  }
  

  And finally the test application:

  package javafxtest.label;
  
  import javafx.application.Application;
  import javafx.beans.value.ChangeListener;
  import javafx.beans.value.ObservableValue;
  import javafx.event.ActionEvent;
  import javafx.event.EventHandler;
  import javafx.scene.Scene;
  import javafx.scene.control.Button;
  import javafx.scene.control.Label;
  import javafx.scene.layout.StackPane;
  import javafx.stage.Stage;
  
  public class LabelInitialisationTest3 extends Application {
      
      @Override
      public void start(Stage primaryStage) {
          MyLabel lbl = new MyLabel();
          lbl.setText("Hello World");
          
          StackPane root = new StackPane();
          root.getChildren().add(lbl);
          
          Scene scene = new Scene(root, 300, 250);
          
          primaryStage.setTitle("Hello World!");
          primaryStage.setScene(scene);
          primaryStage.show();
      }
  
      public static void main(String[] args) {
          launch(args);
      }   
  }
  

  My first thought (only having a problem with the listener changes not beeing called), I thought that this is an initialization problem, as the skin only get instantiated when the scene is rendered for the first time, but this isn't so. Now, I think I am missing something completely obvious, as the correct use of the property of type string.

  Someone at - it an idea?

  First thing is earlier as suspeced. The initialization of the skin happens only when the scene is shown:

  at javafxtest.label.MyLabelSkin.(MyLabelSkin.java:24)
  at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
  at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
  at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
  at java.lang.reflect.Constructor.newInstance(Constructor.java:414)
  at javafx.scene.control.Control.loadSkinClass(Control.java:714)
  at javafx.scene.control.Control$5.invalidated(Control.java:651)
  at javafx.beans.property.StringPropertyBase.markInvalid(StringPropertyBase.java:109)
  at javafx.beans.property.StringPropertyBase.set(StringPropertyBase.java:143)
  at javafx.css.StyleableStringProperty.set(StyleableStringProperty.java:83)
  at javafx.scene.control.Control$5.set(Control.java:640)
  at javafx.css.StyleableStringProperty.applyStyle(StyleableStringProperty.java:69)
  at javafx.css.StyleableStringProperty.applyStyle(StyleableStringProperty.java:45)
  at javafx.scene.CssStyleHelper.transitionToState(CssStyleHelper.java:618)
  at javafx.scene.Node.impl_processCSS(Node.java:8638)
  at javafx.scene.Parent.impl_processCSS(Parent.java:1192)
  at javafx.scene.control.Control.impl_processCSS(Control.java:863)
  at javafx.scene.Parent.impl_processCSS(Parent.java:1204)
  at javafx.scene.Node.processCSS(Node.java:8548)
  at javafx.scene.Scene.doCSSPass(Scene.java:545)
  at javafx.scene.Scene.preferredSize(Scene.java:1583)
  at javafx.scene.Scene.impl_preferredSize(Scene.java:1650)
  at javafx.stage.Window$9.invalidated(Window.java:730)
  at javafx.beans.property.BooleanPropertyBase.markInvalid(BooleanPropertyBase.java:109)
  at javafx.beans.property.BooleanPropertyBase.set(BooleanPropertyBase.java:143)
  at javafx.stage.Window.setShowing(Window.java:796)
  at javafx.stage.Window.show(Window.java:811)
  at javafx.stage.Stage.show(Stage.java:243)
  at javafxtest.label.LabelInitialisationTest3.start(LabelInitialisationTest3.java:38)
  at com.sun.javafx.application.LauncherImpl$5.run(LauncherImpl.java:810)
  at com.sun.javafx.application.PlatformImpl$6.run(PlatformImpl.java:273)
  at com.sun.javafx.application.PlatformImpl$5$1.run(PlatformImpl.java:239)
  at com.sun.javafx.application.PlatformImpl$5$1.run(PlatformImpl.java:236)
  at java.security.AccessController.doPrivileged(Native Method)
  at com.sun.javafx.application.PlatformImpl$5.run(PlatformImpl.java:236)
  at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
  at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
  at com.sun.glass.ui.gtk.GtkApplication.access$200(GtkApplication.java:47)
  at com.sun.glass.ui.gtk.GtkApplication$5$1.run(GtkApplication.java:137)
  at java.lang.Thread.run(Thread.java:724)
  

  Of course, this means that to get the original value of the control in the text of labels property change listener will not be triggered. Instead, the value must be set by hand.

  The second question was an oversight on my part: what to appear, the label must be added to the list of children in the skin:

  public MyLabelSkin(MyLabel c) {
      super(c);
      label = new Label();
      label.textProperty().set(c.getText());
      c.textProperty().bind(label.textProperty());
      c.textProperty().addListener(new ChangeListener(){
  
          @Override
          public void changed(ObservableValue ov, String t, String t1) {
              System.out.println("Value changed Skin");
          }
      });
      System.out.println("Text value of the control: "+c.textProperty().getValue());
      System.out.println("Text value of the label: "+label.textProperty().getValue());
  
      getChildren().add(label);
  }
  

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  Hello

  Sorry if my question is maybe a bit too general (I don't have a VI implementation yet).

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  Hi Kumar,

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