Package org.alfresco.ibatis

Class RetryingCallbackHelper

java.lang.Object

org.alfresco.ibatis.RetryingCallbackHelper

public class RetryingCallbackHelper
extends Object

A helper that runs a unit of work, transparently retrying the unit of work if an error occurs.

Defaults:

• maxRetries: 5
• retryWaitMs: 10

Since:

3.4

Author:

Derek Hulley

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	RetryingCallbackHelper.RetryingCallback<Result>	Callback interface

Constructor Summary

Constructors

Constructor	Description
RetryingCallbackHelper()	Default constructor.

Method Summary

Modifier and Type	Method	Description
<R> R	doWithRetry(RetryingCallbackHelper.RetryingCallback<R> callback)	Execute a callback until it succeeds, fails or until a maximum number of retries have been attempted.
void	setMaxRetries(int maxRetries)	Set the maximimum number of retries. -1 for infinity.
void	setRetryWaitMs(int retryWaitMs)

Methods inherited from class java.lang.Object

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

Constructor Details

RetryingCallbackHelper

public RetryingCallbackHelper()

Default constructor.

Method Details

setMaxRetries

public void setMaxRetries(int maxRetries)

Set the maximimum number of retries. -1 for infinity.

setRetryWaitMs

public void setRetryWaitMs(int retryWaitMs)

doWithRetry

public <R> R doWithRetry(RetryingCallbackHelper.RetryingCallback<R> callback)

Execute a callback until it succeeds, fails or until a maximum number of retries have been attempted.

Parameters:

callback - The callback containing the unit of work.

Returns:

Returns the result of the unit of work.

Throws:

RuntimeException - all checked exceptions are converted