    001// Copyright 2010, 2011, 2012 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
    015package org.apache.tapestry5.services;
    016
    017import org.apache.tapestry5.runtime.Component;
    018import org.apache.tapestry5.runtime.ComponentEvent;
    019
    020/**
    021 * Interface used with  {@link org.apache.tapestry5.services.transform.TransformationSupport#addEventHandler(String, int, String, ComponentEventHandler)}}.
    022 *
    023 * @since 5.2.0
    024 */
    025public interface ComponentEventHandler
    026{
    027    /**
    028     * Handles the event.
    029     */
    030    void handleEvent(Component instance, ComponentEvent event);
    031}