javax.batch.api.chunk.listener.RetryProcessListener Maven / Gradle / Ivy

/*
 * 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;

/**
* RetryProcessListener intercepts retry processing for
* an ItemProcessor. 
*
* @param  specifies the type of item processed
* by the ItemProcessor paired with this listener.
*/
public interface RetryProcessListener  {
	
	/**
	* The onRetryProcessException method receives control 
	* when a retryable exception is thrown from an ItemProcessor
	* processItem method. This method receives the exception and the item 
	* being processed as inputs. This method receives control in same 
	* checkpoint scope as the ItemProcessor. If this method 
	* throws a an exception, the job ends in the FAILED state.
	* 
	* @param item specifies the item passed to the ItemProcessor.
	* @param ex specifies the exception thrown by the ItemProcessor.
	* @throws Exception is thrown if an error occurs.
	*/
	public void onRetryProcessException(T item, Exception ex) throws Exception;

}