org.springframework.batch.item.ItemWriter.java Source code

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Here is the source code for org.springframework.batch.item.ItemWriter.java

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/*
 * Copyright 2006-2007 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.batch.item;

import java.util.List;

/**
 * <p>
 * Basic interface for generic output operations. Class implementing this
 * interface will be responsible for serializing objects as necessary.
 * Generally, it is responsibility of implementing class to decide which
 * technology to use for mapping and how it should be configured.
 * </p>
 * 
 * <p>
 * The write method is responsible for making sure that any internal buffers are
 * flushed. If a transaction is active it will also usually be necessary to
 * discard the output on a subsequent rollback. The resource to which the writer
 * is sending data should normally be able to handle this itself.
 * </p>
 * 
 * @author Dave Syer
 * @author Lucas Ward
 */
public interface ItemWriter<T> {

    /**
     * Process the supplied data element. Will not be called with any null items
     * in normal operation.
     *
     * @param items items to be written
     * @throws Exception if there are errors. The framework will catch the
     * exception and convert or rethrow it as appropriate.
     */
    void write(List<? extends T> items) throws Exception;

}