Examples of com.google.gwt.user.client.Command

com.google.gwt.user.client.Command
Encapsulates an action for later execution, often from a different context.
The Command interface provides a layer of separation between the code specifying some behavior and the code invoking that behavior. This separation aids in creating reusable code. For example, a {@link com.google.gwt.user.client.ui.MenuItem} can have a Commandassociated with it that it executes when the menu item is chosen by the user. Importantly, the code that constructed the Command to be executed when the menu item is invoked knows nothing about the internals of the MenuItem class and vice-versa.

The Command interface is often implemented with an anonymous inner class. For example,
```
 Command sayHello = new Command() { public void execute() { Window.alert("Hello"); } }; sayHello.execute(); 
```

        return new MethodParameterCallValueEditor( val,
                                                   enums,
                                                   executionTrace,
                                                   scenario,
                                                   val.type,
                                                   new Command() {


                                                       public void execute() {
                                                           makeDirty();
                                                       }
                                                   } );

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                    final Label loading = new SmallLabel( constants.loadingList1() );
                    horizontalPanel.add( busy );
                    horizontalPanel.add( loading );


                    Scheduler scheduler = Scheduler.get();
                    scheduler.scheduleDeferred( new Command() {
                        public void execute() {
                            RepositoryServiceFactory.getPackageService().listRulesInPackage( packageName,
                                                                                      createGenericCallback( horizontalPanel,
                                                                                                             ruleNameTextBox,
                                                                                                             busy,

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  public void redraw() {
    resizeTablesVertically();


    if (resizePolicy == ResizePolicy.FILL_WIDTH
        || resizePolicy == ResizePolicy.FILL_WIDTH_DISABLED) {
      DeferredCommand.addCommand(new Command() {
        public void execute() {
          fillWidth();
        }
      });
    }

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public class SampleApp implements EntryPoint {


    public void onModuleLoad() {
        // Log.setUncaughtExceptionHandler();


        DeferredCommand.addCommand(new Command() {
            public void execute() {
                onModuleLoad2();
            }
        });
    }

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     * 
     * @param text
     */
    public void setHTML(final String text) {
        Log.debug("CreatePostWidget setting: " + text);
        DeferredCommand.addCommand(new Command() {


            public void execute() {
                textArea.setHTML(text);
            }
        });

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    }
    /**
     * Removed DeferredCommand if/when GWT issue 1849 is implemented
     * http://code.google.com/p/google-web-toolkit/issues/detail?id=1849
     */
    DeferredCommand.addCommand(new Command() {
      public void execute() {
        setFocus(true);
      }
    });
  }

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    }
  }


  public void diagnostic(String message, final Throwable e) {
    final String msg = format(toPrefix("gwt-log"), message);
    DeferredCommand.addCommand(new Command() {
      public void execute() {
        for (Iterator iterator = loggers.iterator(); iterator.hasNext();) {
          Logger logger = (Logger) iterator.next();
          try {
            logger.diagnostic(msg, e);

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    timer = new Timer() {
      public void run() {
        dirty = false;
        logTextArea.setHTML(logTextArea.getHTML() + logText);
        logText = "";
        DeferredCommand.addCommand(new Command() {
          public void execute() {
            scrollPanel.setScrollPosition(Integer.MAX_VALUE);
          }
        });
      }

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    timer = new Timer() {
      public void run() {
        dirty = false;
        logTextArea.setHTML(logTextArea.getHTML() + logText);
        logText = "";
        DeferredCommand.addCommand(new Command() {
          public void execute() {
            scrollPanel.setScrollPosition(Integer.MAX_VALUE);
          }
        });
      }

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      }
    });


    // Use a deferred command so that the UncaughtExceptionHandler catches
    // exceptions thrown in onModuleLoad2()
    DeferredCommand.addCommand(new Command() {
      public void execute() {
        onModuleLoad2();
      }
    });
  }

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