awt/javax/imageio/metadata/IIOMetadataController.java

/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You 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.
 */
/**
 * @author Sergey I. Salishev
 * @version $Revision: 1.2 $
 */
package javax.imageio.metadata;

/* 
 * @author Sergey I. Salishev
 * @version $Revision: 1.2 $
 */

/**
 * The IIOMetadataController interface provides a method for 
 * implementing objects to activate the controller without 
 * defining how the controller obtains values.
 */
public interface IIOMetadataController {

    /**
     * Activates a controller.
     * 
     * @param metadata the metadata to be modified.
     * 
     * @return true if the IIOMetadata has been modified, 
     * false otherwise.
     */
    public boolean activate(IIOMetadata metadata);
}