    001// Licensed under the Apache License, Version 2.0 (the "License");
    002// you may not use this file except in compliance with the License.
    003// You may obtain a copy of the License at
    004//
    005//     http://www.apache.org/licenses/LICENSE-2.0
    006//
    007// Unless required by applicable law or agreed to in writing, software
    008// distributed under the License is distributed on an "AS IS" BASIS,
    009// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    010// See the License for the specific language governing permissions and
    011// limitations under the License.
    012
    013package org.apache.tapestry5.internal.services;
    014
    015import org.apache.tapestry5.ComponentResources;
    016
    017/**
    018 * A kind of callback that can easily be injected into a transformed class to perform complex work.
    019 *
    020 * These callbacks are often injected into a transformed component class. Bear in mind that such
    021 * callbacks must be <em>threadsafe</em>, since every instance of such a class will share a single instance of the
    022 * operation.
    023 *
    024 * @deprecated In Tapestry 5.4; use {@link org.apache.tapestry5.plastic.MethodAdvice} and other parts of the new (in 5.3) plastic library.
    025 */
    026public interface ComponentResourcesOperation
    027{
    028    /**
    029     * Perform some operation that requires the components' resources.
    030     */
    031    void perform(ComponentResources resources);
    032}