propertytester.java

eclise rcp 项目,是非常好的学习源码

package com.siemens.ct.mp3m.ui.player;

import com.siemens.ct.mp3m.model.physical.Mp3Directory;
import com.siemens.ct.mp3m.ui.player.IMp3PlayerStateListener.State;

public class PropertyTester extends org.eclipse.core.expressions.PropertyTester {

	public boolean test(Object receiver, String property, Object[] args, Object expectedValue) {
		if (property.equals("playenabled")) {
			return !(receiver instanceof Mp3Directory);
		} else if(property.equals("stopenabled")) {
			System.out.println("stoptest");
			return (Mp3Player.getInstance().getState() == State.PLAYING);
		}
		return false;
	}
}