001/*
002 * Copyright 2013 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 */
016package org.springframework.batch.core.jsr.step.item;
017
018import org.springframework.batch.core.StepContribution;
019import org.springframework.batch.core.step.item.Chunk;
020import org.springframework.batch.core.step.item.ChunkProvider;
021
022/**
023 * A no-op {@link ChunkProvider}.  The JSR-352 chunking model does not cache the
024 * input as the regular Spring Batch implementations do so this component is not
025 * needed within a chunking loop.
026 *
027 * @author Michael Minella
028 *
029 * @param <T> The type of input for the step
030 */
031public class JsrChunkProvider<T> implements ChunkProvider<T> {
032
033        /* (non-Javadoc)
034         * @see org.springframework.batch.core.step.item.ChunkProvider#provide(org.springframework.batch.core.StepContribution)
035         */
036        @Override
037        public Chunk<T> provide(StepContribution contribution) throws Exception {
038                return new Chunk<T>();
039        }
040
041        /* (non-Javadoc)
042         * @see org.springframework.batch.core.step.item.ChunkProvider#postProcess(org.springframework.batch.core.StepContribution, org.springframework.batch.core.step.item.Chunk)
043         */
044        @Override
045        public void postProcess(StepContribution contribution, Chunk<T> chunk) {
046        }
047}