    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
    015    package org.apache.tapestry5.ioc.internal.util;
    016
    017    import 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 id, logger or service interface class.
    023     */
    024    public 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    }