001/*
002 * Copyright 2006-2007 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.batch.item.support;
018
019import org.springframework.batch.item.ItemProcessor;
020
021/**
022 * Simple {@link ItemProcessor} that does nothing - simply passes its argument
023 * through to the caller. Useful as a default when the reader and writer in a
024 * business process deal with items of the same type, and no transformations are
025 * required.
026 * 
027 * @author Dave Syer
028 * 
029 */
030public class PassThroughItemProcessor<T> implements ItemProcessor<T, T> {
031
032        /**
033         * Just returns the item back to the caller.
034         * 
035         * @return the item
036         * @see ItemProcessor#process(Object)
037         */
038    @Override
039        public T process(T item) throws Exception {
040                return item;
041        }
042
043}