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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
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package org.springframework.batch.retry.policy;
A org.springframework.batch.retry.RetryPolicy that allows the first attempt but never permits a retry. Also be used as a base class for other policies, e.g. for test purposes as a stub.

Dave Syer
public class NeverRetryPolicy implements RetryPolicy {

Returns false after the first exception. So there is always one try, and then the retry is prevented.

	public boolean canRetry(RetryContext context) {
		return !((NeverRetryContextcontext).isFinished();

	public void close(RetryContext context) {
		// no-op

Return a context that can respond to early termination requests, but does nothing else.

	public RetryContext open(RetryContext parent) {
		return new NeverRetryContext(parent);

	public void registerThrowable(RetryContext contextThrowable throwable) {

Special context object for NeverRetryPolicy. Implements a flag with a similar function to org.springframework.batch.retry.RetryContext.isExhaustedOnly(), but kept separate so that if subclasses of NeverRetryPolicy need to they can modify the behaviour of NeverRetryPolicy.canRetry(org.springframework.batch.retry.RetryContext) without affecting org.springframework.batch.retry.RetryContext.isExhaustedOnly().

Dave Syer
	private static class NeverRetryContext extends RetryContextSupport {
		private boolean finished = false;
		public NeverRetryContext(RetryContext parent) {
		public boolean isFinished() {
			return ;
		public void setFinished() {
			this. = true;
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