org.axonframework.commandhandling
Interface CommandTargetResolver

All Known Implementing Classes:

AnnotationCommandTargetResolver, MetaDataCommandTargetResolver

public interface 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.

Since:

1.2

Author:

Allard Buijze

Method Summary

VersionedAggregateIdentifier

resolveTarget(CommandMessage<?> command) Returns the Aggregate Identifier and optionally the expected version of the aggregate on which the given command should be executed.

Method Detail

resolveTarget

VersionedAggregateIdentifier resolveTarget(CommandMessage<?> command)

Returns the Aggregate Identifier and optionally the expected version of the aggregate on which the given command should be executed. The version may be null if no specific version is required.

Parameters:

command - The command from which to extract the identifier and version

Returns:

a VersionedAggregateIdentifier instance reflecting the aggregate to execute the command on

Throws:

IllegalArgumentException - if the command is not formatted correctly to extract this information