Defining commands at runtime

You can create commands at runtime. Create project "de.vogella.rcp.commands.runtimecommands" using the "Hello RCP" template.

Define a menu contribution. Maintain the class "de.vogella.rcp.commands.runtimecommands.DefineCommands" in this menu contribution.

Create the following class.

   
package de.vogella.rcp.commands.runtimecommands;

import org.eclipse.swt.SWT;
import org.eclipse.ui.menus.CommandContributionItem;
import org.eclipse.ui.menus.CommandContributionItemParameter;
import org.eclipse.ui.menus.ExtensionContributionFactory;
import org.eclipse.ui.menus.IContributionRoot;
import org.eclipse.ui.services.IServiceLocator;

public class DefineCommands extends ExtensionContributionFactory {

 @Override
 public void createContributionItems(IServiceLocator serviceLocator,
   IContributionRoot additions) {
  CommandContributionItemParameter p = new CommandContributionItemParameter(
    serviceLocator, "",
    "org.eclipse.ui.file.exit",
    SWT.PUSH);
  p.label = "Exit the application";
  p.icon = Activator.getImageDescriptor("icons/alt_window_16.gif");

  CommandContributionItem item = new CommandContributionItem(p);
  item.setVisible(true);
  additions.addContributionItem(item, null);
 }

}

  

Run the example, your application should have the Exit command in the menu.