org.springframework.cloud.stream.annotation

Annotation Type StreamListener

@Target(value={METHOD,ANNOTATION_TYPE})
 @Retention(value=RUNTIME)
 @MessageMapping
 @Documented
public @interface StreamListener

Annotation that marks a method to be a listener to an input component declared through EnableBinding (e.g. a channel). Annotated methods are allowed to have flexible signatures, as described by MessageMapping. If the method returns a Message, the result will be automatically sent to a channel, as follows:

• A result of the type Message will be sent as-is
• All other results will become the payload of a Message

The target channel of the return message is determined by consulting in the following order:

• The MessageHeaders of the resulting message.
• The value set on the SendTo annotation, if present

Author:

Marius Bogoevici

See Also:

MessageMapping}, EnableBinding}, org.springframework.messaging.handler.annotation.SendTo}

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
String	value The name of the bound component (e.g.

Element Detail

value

public abstract String value

The name of the bound component (e.g. channel) that the method subscribes to.

Default:

""