Java 类org.eclipse.core.commands.contexts.IContextManagerListener 实例源码

项目:gef-gwt    文件:IContextService.java   
/**
 * Adds a listener to this context service. The listener will be notified
 * when the set of defined contexts changes. This can be used to track the
 * global appearance and disappearance of contexts.
 * <p>
 * <b>Note:</b> listeners should be removed when no longer necessary. If
 * not, they will be removed when the IServiceLocator used to acquire this
 * service is disposed.
 * </p>
 * 
 * @param listener
 *            The listener to attach; must not be <code>null</code>.
 * @since 3.2
 * @see #removeContextManagerListener(IContextManagerListener)
 */
public void addContextManagerListener(IContextManagerListener listener);
项目:gef-gwt    文件:IContextService.java   
/**
 * Removes a listener from this context service.
 * 
 * @param listener
 *            The listener to be removed; must not be <code>null</code>.
 * @since 3.2
 */
public void removeContextManagerListener(IContextManagerListener listener);