/**
* Copyright 2005 Bushe Enterprises, Inc., Hopkinton, MA, USA, www.bushe.com
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.bushe.swing.action;
/**
* An interface that actions can implement to have themselves determine and set
* their own enablement state.
* @see org.bushe.swing.action.DelegatesEnabled
* @author Michael Bushe
*/
public interface EnabledUpdater extends ShouldBeEnabledDelegate {
/**
* Called to force an action to enable or disable itself.
* <p>
* If the action can figure it out (either directly or through a delegate)
* then it should call setEnabled(false or true) on itself appropriately.
* <p>
* A typical implementation would simply call setEnabled(shouldBeEnabled())
* @return whether setEnabled was called with false or true
*/
public boolean updateEnabled();
}