Package org.axonframework.commandhandling.gateway

Class RetryingCallback<C,R>

java.lang.Object

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

Type Parameters:

C - The type of payload of the dispatched command

R - The type of return value expected by the callback

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	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	Description
void	onResult(CommandMessage<? extends C> commandMessage, CommandResultMessage<? extends R> commandResultMessage)	Invoked when command handling execution is completed.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.axonframework.commandhandling.CommandCallback

wrap

Constructor Details

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 Details

onResult

public void onResult(@Nonnull
 CommandMessage<? extends C> commandMessage,
 @Nonnull
 CommandResultMessage<? extends R> commandResultMessage)

Description copied from interface: CommandCallback

Invoked when command handling execution is completed.

Specified by:

onResult in interface CommandCallback<C,R>

Parameters:

commandMessage - the CommandMessage that was dispatched

commandResultMessage - the CommandResultMessage of the command handling execution