spring-retry NeverRetryPolicy 源码
spring-retry NeverRetryPolicy 代码
文件路径：/src/main/java/org/springframework/retry/policy/NeverRetryPolicy.java
/*
* 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.retry.policy;
import org.springframework.retry.RetryContext;
import org.springframework.retry.RetryPolicy;
import org.springframework.retry.context.RetryContextSupport;
/**
* A {@link 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.
*
* @author Dave Syer
*
*/
@SuppressWarnings("serial")
public class NeverRetryPolicy implements RetryPolicy {
/**
* Returns false after the first exception. So there is always one try, and then the
* retry is prevented.
*
* @see org.springframework.retry.RetryPolicy#canRetry(org.springframework.retry.RetryContext)
*/
public boolean canRetry(RetryContext context) {
return !((NeverRetryContext) context).isFinished();
}
/**
* Do nothing.
*
* @see org.springframework.retry.RetryPolicy#close(org.springframework.retry.RetryContext)
*/
public void close(RetryContext context) {
// no-op
}
/**
* Return a context that can respond to early termination requests, but does nothing
* else.
*
* @see org.springframework.retry.RetryPolicy#open(RetryContext)
*/
public RetryContext open(RetryContext parent) {
return new NeverRetryContext(parent);
}
/**
* Make the throwable available for downstream use through the context.
* @see org.springframework.retry.RetryPolicy#registerThrowable(org.springframework.retry.RetryContext,
* Throwable)
*/
public void registerThrowable(RetryContext context, Throwable throwable) {
((NeverRetryContext) context).setFinished();
((RetryContextSupport) context).registerThrowable(throwable);
}
/**
* Special context object for {@link NeverRetryPolicy}. Implements a flag with a
* similar function to {@link RetryContext#isExhaustedOnly()}, but kept separate so
* that if subclasses of {@link NeverRetryPolicy} need to they can modify the
* behaviour of {@link NeverRetryPolicy#canRetry(RetryContext)} without affecting
* {@link RetryContext#isExhaustedOnly()}.
*
* @author Dave Syer
*
*/
private static class NeverRetryContext extends RetryContextSupport {
private boolean finished = false;
public NeverRetryContext(RetryContext parent) {
super(parent);
}
public boolean isFinished() {
return finished;
}
public void setFinished() {
this.finished = true;
}
}
}
相关信息
相关文章
spring-retry AlwaysRetryPolicy 源码
spring-retry BinaryExceptionClassifierRetryPolicy 源码
spring-retry CircuitBreakerRetryPolicy 源码
spring-retry CompositeRetryPolicy 源码
spring-retry ExceptionClassifierRetryPolicy 源码
spring-retry ExpressionRetryPolicy 源码
spring-retry MapRetryContextCache 源码
spring-retry MaxAttemptsRetryPolicy 源码
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦