org.axonframework.commandhandling.gateway

Class RetryingCallback<C,R>

java.lang.Object

org.axonframework.commandhandling.gateway.RetryingCallback<C,R>

Type Parameters:

R - The type of return value expected by the callback

C - The type of payload of the dispatched command

All Implemented Interfaces:

CommandCallback<C,R>

public class RetryingCallback<C,R>
extends Object
implements CommandCallback<C,R>

Callback implementation that will invoke a retry scheduler if a command results in a runtime exception.

Generally, it is not necessary to use this class directly. It is used by CommandGateway implementations to support retrying of commands.

Since:

2.0

Author:

Allard Buijze

See Also:

DefaultCommandGateway

Constructor Summary

Constructors

Constructor and Description
RetryingCallback(CommandCallback<C,R> delegate, RetryScheduler retryScheduler, CommandBus commandBus) Initialize the RetryingCallback with the given delegate, representing the actual callback passed as a parameter to dispatch, the given commandMessage, retryScheduler and commandBus.

Method Summary

Modifier and Type	Method and Description
void	onFailure(CommandMessage<? extends C> commandMessage, Throwable cause) Invoked when command handling execution resulted in an error.
void	onSuccess(CommandMessage<? extends C> commandMessage, R result) Invoked when command handling execution was successful.

Methods inherited from class java.lang.Object

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

Constructor Detail

RetryingCallback

public RetryingCallback(CommandCallback<C,R> delegate,
                        RetryScheduler retryScheduler,
                        CommandBus commandBus)

Initialize the RetryingCallback with the given delegate, representing the actual callback passed as a parameter to dispatch, the given commandMessage, retryScheduler and commandBus.

Parameters:

delegate - The callback to invoke when the command succeeds, or when retries are rejected.

retryScheduler - The scheduler that decides if and when a retry should be scheduled

commandBus - The commandBus on which the command must be dispatched

Method Detail

onSuccess

public void onSuccess(CommandMessage<? extends C> commandMessage,
                      R result)

Description copied from interface: CommandCallback

Invoked when command handling execution was successful.

Specified by:

onSuccess in interface CommandCallback<C,R>

Parameters:

commandMessage - The message that was dispatched

result - The result of the command handling execution, if any.

onFailure

public void onFailure(CommandMessage<? extends C> commandMessage,
                      Throwable cause)

Description copied from interface: CommandCallback

Invoked when command handling execution resulted in an error.

Specified by:

onFailure in interface CommandCallback<C,R>

Parameters:

commandMessage - The message that was dispatched

cause - The exception raised during command handling