Package org.jmolecules.architecture.cqrs
Annotation Type Command
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@Documented @Retention(RUNTIME) @Target(TYPE) public @interface Command
Identifies a command in the context of CQRS, i.e. a request to the system for the change of data. Commands are always in imperative tense and thus, unlike an event, do not state that something has already happened, but something is requested to happen. With that, theCommandHandler
which is processing the command has the option reject the command.- Since:
- 1.1
- See Also:
- CQRS Documents by Greg Young - Commands
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Optional Element Summary
Optional Elements Modifier and Type Optional Element Description java.lang.String
name
An identifier for the name of the command used to abstract away from the type system and to guard against refactorings.java.lang.String
namespace
An identifier for the namespace of the command to group multiple commands and let clients express their interest in all commands of a specific namespace.
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Element Detail
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namespace
java.lang.String namespace
An identifier for the namespace of the command to group multiple commands and let clients express their interest in all commands of a specific namespace. If not set, external tooling may default this to the fully-qualified package name of the annotated type.- Default:
- ""
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