Modular or new approach by custom components: Please suggest

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• Custom components in FXML

  Hello
  
  I want to set in the FXML a custom component, something like MyTreeItem, which extends from TreeItem. To do this, I created a MyJavaFXBuilderFactory to return the correct constructor (MyTreeItemBuilder). MyTreeItemBuilder returns instances of MyTreeItem.
  
  Note: Below, I send my courses and my tree.fxml.
  
  
  Is it possible to include in the custom components of fxml?
  
  
  
  When I run my application, I got this error:
  
  com.sun.javafx.fxml.PropertyNotFoundException: "myvalue" property does not exist or is read-only.
  
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  to com.sun.javafx.application.PlatformImpl$ 3.run (unknown Source)
  
  at com.sun.glass.ui.win.WinApplication._runLoop (Native Method)
  
  in com.sun.glass.ui.win.WinApplication.access$ 100 (unknown Source)
  
  to com.sun.glass.ui.win.WinApplication$ $2 1.run (unknown Source)
  
  at java.lang.Thread.run(Thread.java:722)
  
  
  
  Tree.fxml
  
  
  
  <? XML version = "1.0"; Encoding = "UTF-8"? >
  
  
  
  <? import javafx.scene.layout. *? >
  
  <? import javafx.scene.control. *? >
  
  <? import javafx.scene. *? >
  
  <? import javafx.geometry.Side? >;
  
  <? importdummy.tree.MyTreeItem? >;
  
  
  
  < xmlns:fx VBox = "http://javafx.com/fxml" >
  
  < children >
  
  < showRoot TreeView = "false" fx:id = "treeView" >
  
  < root >
  
  < TreeItem value = 'Root' >
  
  < children >
  
  < MyTreeItem myvalue = "Node1" fx:id = "treeItemNode1" >
  
  < children >
  
  < TreeItem value = "none" / >
  
  < / children >
  
  < / MyTreeItem >
  
  < children >
  
  < / TreeItem >
  
  < / root >
  
  < / TreeView >
  
  < / children >
  
  < / VBox >
  
  
  
  Classes:
  
  
  
  package package dummy.tree;
  
  
  
  Import javafx.scene.control.TreeItem;
  
  
  
  SerializableAttribute public class MyTreeItem extends TreeItem {}
  
  
  
  public Object getMyvalue() {}
  
  Return super.getValue ();
  
  }
  
  public void setMyvalue (Object value) {}
  
  super.setValue (value);
  
  }
  
  
  
  }
  
  
  
  package dummy.tree;
  
  
  
  Import javafx.fxml.JavaFXBuilderFactory;
  
  Import javafx.util.Builder;
  
  Import javafx.util.BuilderFactory;
  
  
  
  Import dummy.tree.MyTreeItem;
  
  
  
  
  
  / public class MyJavaFXBuilderFactory implements BuilderFactory {}
  
  
  
  private JavaFXBuilderFactory javaFXBuilderFactory = new JavaFXBuilderFactory();
  
  
  
  class MyTreeItemBuilder implements {Builder < MyTreeItem >
  
  
  
  @Override
  
  public MyTreeItem build() {}
  
  return new MyTreeItem();
  
  }
  
  
  
  }
  
  
  
  @Override
  
  public Builder <>? getBuilder (class <>? clazz) {}
  
  If (clazz.equals (MyTreeItem.class)) {}
  
  return new MyTreeItemBuilder();
  
  }
  
  Return javaFXBuilderFactory.getBuilder (clazz);
  
  }
  
  
  
  }
  
  
  
  package dummy.tree;
  
  
  
  import java.io.InputStream;
  
  import java.net.URL;
  
  
  
  Import javafx.application.Application;
  
  Import javafx.fxml.FXMLLoader;
  
  Import javafx.fxml.JavaFXBuilderFactory;
  
  Import javafx.scene.Scene;
  
  Import javafx.scene.layout.Pane;
  
  Import javafx.scene.paint.Color;
  
  Import javafx.stage.Stage;
  
  
  
  SerializableAttribute public class MainWindowTree extends Application {}
  
  
  
  Public Shared Sub main (String [] args) {}
  
  Application.Launch (null);
  
  }
  
  
  
  @Override
  
  public void start (s phase) {}
  
  Location of the URL = getClass().getResource("/com/dbn/ui/theme/default/tree.fxml";);
  
  FXMLLoader fxmlLoader = new FXMLLoader();
  
  fxmlLoader.setLocation (rental);
  
  
  
  MyJavaFXBuilderFactory fxBuilderFactory = new MyJavaFXBuilderFactory();
  
  
  
  fxmlLoader.setBuilderFactory (fxBuilderFactory);
  
  InputStream inputStream = null;
  
  try {}
  
  inputStream = location.openStream ();
  
  Root = fxmlLoader.load (inputStream) (component) component;
  
  Scene = new scene (root, 800, 600, Color.TRANSPARENT);
  
  s.setScene (scene);
  
  s.Show ();
  
  } catch (Exception ex) {}
  
  ex.printStackTrace ();
  
  }
  
  }
  
  
  
  }

  Hello

  When you include the code (and the stack traces) in your forum messages, please include in a tag {code} as shown: https://forums.oracle.com/forums/ann.jspa?annID=1622 this makes it more easy for us all to read.

  Your code is sort of ok, but you have a lot of typos in your FXML and your Java code. Try searching for the code below instead. You don't actually have a constructor or by the way, it will work only without it.

  Try this FXML:

  With that for your item custom:

  package dummy.tree;
  
  import javafx.scene.control.TreeItem;
  
  public class MyTreeItem extends TreeItem
  {
      public Object getMyvalue()
      {
          return super.getValue();
      }
  
      public void setMyvalue(Object value)
      {
          super.setValue(value);
      }
  }
  

  And for launch:

  package dummy.tree;
  
  import javafx.application.Application;
  import javafx.fxml.FXMLLoader;
  import javafx.scene.Parent;
  import javafx.scene.Scene;
  import javafx.stage.Stage;
  
  public class TestApp extends Application
  {
      public static void main(String[] args) throws Exception
      {
          launch(args);
      }
  
      public void start(Stage stage) throws Exception
      {
          Parent rootNode = FXMLLoader.load(getClass().getResource("/tree.fxml"));
          Scene scene = new Scene(rootNode, 800, 600);
          stage.setScene(scene);
          stage.show();
      }
  }
  

  Also, I guess it is just a test case, but you don't need to provide your own "myvalue" getters/setters when this is delegated to super. Just use the 'value' property directly in your FXML.

  A view Naming Convention, it should be myValue with getMyValue and setMyValue (e.g. capital 'V'). FXML is case-sensitive too, so if you change, you need to change your FXML for use myValue instead.

  Hope that helps,
  zonski

  Did you find this answer useful? If so, please mark it as 'Correct' or 'useful '.

• custom - components

  Hello
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  It is not critical, but I would like to place a set of codes < mx: states > in a custom component.
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• Communication between two custom components

  Hello

  I have a problem to get action in a custom component to cause a refresh of another custom component?

  My configuration is:

  < application >

  < component includeIn custom 1 "View1" >

  < component custom 2 id = "custom2" level = "{level}" "view2" includeIn >

  < component custom an includeIn 'View1' >

  < component includeIn custom B "view2" >

  < / application >

  I have a number of custom components load in my main application window.

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  Karsten

  Is probably not the cleanest way, but he's going to move you quickly.

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  call the custom here update refresh method

  }

  }

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