    001//  Copyright 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
    015package org.apache.tapestry5.ioc.internal.util;
    016
    017import java.lang.reflect.Type;
    018
    019/**
    020 * Provides for the injection of specific types of values as <em>resources</em> as opposed to services or objects
    021 * obtained from {@link org.apache.tapestry5.ioc.services.MasterObjectProvider}. This includes values such as a
    022 * service's logger, service interface class, or {@link org.apache.tapestry5.ioc.ServiceResources}.
    023 */
    024public interface InjectionResources
    025{
    026    /**
    027     * Given the field type, provide the matching resource value, or null.
    028     *
    029     * @param type        type of field or parameter
    030     * @param genericType generic type information associated with field or parameter
    031     * @return the  corresponding value, or null
    032     */
    033    <T> T findResource(Class<T> type, Type genericType);
    034}