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/*
 * Copyright 2012 International Business Machines Corp.
 * 
 * See the NOTICE file distributed with this work for additional information
 * regarding copyright ownership. 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
 * 
 *   http://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 javax.batch.api.chunk.listener;
/**
 * RetryReadListener intercepts retry processing for
 * an ItemReader. 
 */
public interface RetryReadListener {
	/**
	 * The onRetryReadException method receives control 
	 * when a retryable exception is thrown from an ItemReader
	 * readItem method.  
	 * This method receives the exception as input. This method
	 * receives control in the same checkpoint scope as the
	 * ItemReader. If this method throws a an exception, the job 
	 * ends in the FAILED state.
	 * @param ex specifies the exception thrown by the item
	 * reader.
	 * @throws Exception is thrown if an error occurs.
	 */
	public void onRetryReadException(Exception ex) throws Exception;
}




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