001/*
002 * Copyright 2002-2012 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      https://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.springframework.core.type.classreading;
018
019import java.io.IOException;
020
021import org.springframework.core.io.Resource;
022
023/**
024 * Factory interface for {@link MetadataReader} instances.
025 * Allows for caching a MetadataReader per original resource.
026 *
027 * @author Juergen Hoeller
028 * @since 2.5
029 * @see SimpleMetadataReaderFactory
030 * @see CachingMetadataReaderFactory
031 */
032public interface MetadataReaderFactory {
033
034        /**
035         * Obtain a MetadataReader for the given class name.
036         * @param className the class name (to be resolved to a ".class" file)
037         * @return a holder for the ClassReader instance (never {@code null})
038         * @throws IOException in case of I/O failure
039         */
040        MetadataReader getMetadataReader(String className) throws IOException;
041
042        /**
043         * Obtain a MetadataReader for the given resource.
044         * @param resource the resource (pointing to a ".class" file)
045         * @return a holder for the ClassReader instance (never {@code null})
046         * @throws IOException in case of I/O failure
047         */
048        MetadataReader getMetadataReader(Resource resource) throws IOException;
049
050}