    001    // Copyright 2006, 2008 The Apache Software Foundation
    002    //
    003    // Licensed under the Apache License, Version 2.0 (the "License");
    004    // you may not use this file except in compliance with the License.
    005    // You may obtain a copy of the License at
    006    //
    007    //     http://www.apache.org/licenses/LICENSE-2.0
    008    //
    009    // Unless required by applicable law or agreed to in writing, software
    010    // distributed under the License is distributed on an "AS IS" BASIS,
    011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    012    // See the License for the specific language governing permissions and
    013    // limitations under the License.
    014
    015    package org.apache.tapestry5.internal.structure;
    016
    017    import org.apache.tapestry5.runtime.Component;
    018
    019    /**
    020     * Callback interface, used when invoking lifecycle methods on components.
    021     */
    022    public interface ComponentCallback
    023    {
    024        /**
    025         * Callback method, passed a component to operate upon.
    026         */
    027        void run(Component component);
    028
    029        /**
    030         * Returns true if the underlying event has been aborted and no further event method invocations should occur.
    031         *
    032         * @return true if the event is aborted, false if event processing should continue
    033         * @see org.apache.tapestry5.runtime.Event#isAborted()
    034         */
    035        boolean isEventAborted();
    036    }