org.springframework.retry.listener

Class RetryListenerSupport

java.lang.Object

org.springframework.retry.listener.RetryListenerSupport

All Implemented Interfaces:

RetryListener

Direct Known Subclasses:

StatisticsListener

public class RetryListenerSupport
extends Object
implements RetryListener

Empty method implementation of RetryListener.

Author:

Dave Syer

Constructor Summary

Constructors

Constructor and Description
RetryListenerSupport()

Method Summary

Modifier and Type	Method and Description
<T,E extends Throwable> void	close(RetryContext context, RetryCallback<T,E> callback, Throwable throwable) Called after the final attempt (successful or not).
<T,E extends Throwable> void	onError(RetryContext context, RetryCallback<T,E> callback, Throwable throwable) Called after every unsuccessful attempt at a retry.
<T,E extends Throwable> boolean	open(RetryContext context, RetryCallback<T,E> callback) Called before the first attempt in a retry.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RetryListenerSupport

public RetryListenerSupport()

Method Detail

close

public <T,E extends Throwable> void close(RetryContext context,
                                          RetryCallback<T,E> callback,
                                          Throwable throwable)

Description copied from interface: RetryListener

Called after the final attempt (successful or not). Allow the interceptor to clean up any resource it is holding before control returns to the retry caller.

Specified by:

close in interface RetryListener

Type Parameters:

T - the return value

E - the exception type

Parameters:

context - the current RetryContext.

callback - the current RetryCallback.

throwable - the last exception that was thrown by the callback.

onError

public <T,E extends Throwable> void onError(RetryContext context,
                                            RetryCallback<T,E> callback,
                                            Throwable throwable)

Description copied from interface: RetryListener

Called after every unsuccessful attempt at a retry.

Specified by:

onError in interface RetryListener

Type Parameters:

T - the return value

E - the exception to throw

Parameters:

context - the current RetryContext.

callback - the current RetryCallback.

throwable - the last exception that was thrown by the callback.

open

public <T,E extends Throwable> boolean open(RetryContext context,
                                            RetryCallback<T,E> callback)

Description copied from interface: RetryListener

Called before the first attempt in a retry. For instance, implementers can set up state that is needed by the policies in the RetryOperations. The whole retry can be vetoed by returning false from this method, in which case a TerminatedRetryException will be thrown.

Specified by:

open in interface RetryListener

Type Parameters:

T - the type of object returned by the callback

E - the type of exception it declares may be thrown

Parameters:

context - the current RetryContext.

callback - the current RetryCallback.

Returns:

true if the retry should proceed.