    001// Copyright 2007, 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.internal.services;
    016
    017import org.apache.tapestry5.ComponentResources;
    018
    019/**
    020 * A kind of callback that can easily be injected into a transformed class to perform complex work.
    021 * <p/>
    022 * These callbacks are often injected into a transformed component class. Bear in mind that such
    023 * callbacks must be <em>threadsafe</em>, since every instance of such a class will share a single instance of the
    024 * operation.
    025 *
    026 * @deprecated In Tapestry 5.4; use {@link org.apache.tapestry5.plastic.MethodAdvice} and other parts of the new (in 5.3) plastic library.
    027 */
    028public interface ComponentResourcesOperation
    029{
    030    /**
    031     * Perform some operation that requires the components' resources.
    032     */
    033    void perform(ComponentResources resources);
    034}