Package org.axonframework.commandhandling

Classes that implement the concept of command handling using explicit command objects.

See: Description

Interface Summary

Interface	Description
CommandBus	The mechanism that dispatches Command objects to their appropriate CommandHandler.
CommandCallback<C,R>	Interface describing a callback that is invoked when command handler execution has finished.
CommandMessage<T>	Represents a Message carrying a command as its payload.
CommandTargetResolver	Interface towards a mechanism that is capable of extracting an Aggregate Identifier and Version form a command that identifies the aggregate instance the command should be invoked on.
SupportedCommandNamesAware	Describes a component capable of specifying which commands it is able to handle.

Class Summary

Class	Description
AggregateAnnotationCommandHandler<T>	Command handler that handles commands based on CommandHandler annotations on an aggregate.
AnnotationCommandHandlerAdapter	Adapter that turns any @CommandHandler annotated bean into a MessageHandler implementation.
AnnotationCommandTargetResolver	CommandTargetResolver that uses annotations on the command to identify the methods that provide the Aggregate Identifier of the targeted Aggregate and optionally the expected version of the aggregate.
AsynchronousCommandBus	Specialization of the SimpleCommandBus that processed Commands asynchronously from the calling thread.
CurrentUnitOfWorkParameterResolverFactory	ParameterResolverFactory that add support for the UnitOfWork parameter type in annotated handlers.
GenericCommandMessage<T>	Implementation of the CommandMessage that takes all properties as constructor parameters.
MetaDataCommandTargetResolver	CommandTargetResolver implementation that uses MetaData entries to extract the identifier and optionally the version of the aggregate that the command targets.
MonitorAwareCallback<C,R>	Wrapper for a callback that notifies a Message Monitor of the message execution result.
SimpleCommandBus	Implementation of the CommandBus that dispatches commands to the handlers subscribed to that specific command's name.
VersionedAggregateIdentifier	Structure that holds an Aggregate Identifier and an expected version of an aggregate.

Exception Summary

Exception	Description
CommandExecutionException	Indicates that an exception has occurred while handling a command.
NoHandlerForCommandException	Exception indicating that no suitable handler could be found for the given command.

Annotation Types Summary

Annotation Type	Description
CommandHandler	Marker annotation to mark any method on an object as being a CommandHandler.
TargetAggregateIdentifier	Field or method level annotation that marks a field or method providing the identifier of the aggregate that a command targets.
TargetAggregateVersion	Field or method level annotation that marks a field or method providing the expected version of the aggregate that a command targets.

Package org.axonframework.commandhandling Description

Classes that implement the concept of command handling using explicit command objects.