Message Broker Subscription Control Annotations
This section includes information on Message Broker Subscription control annotations.
Topics Included in This Section
@jc:mb-subscription-control Annotation
Defines class level attributes for the Subscription Control.
@jc:mb-subscription-method Annotation
Defines method level attributes for the Subscription Control.
@jc:mb-subscription-callback Annotation
Defines callback attributes for the Subscription Control.
@jc:mb-subscription-control Annotation
This section describes the class attributes supported for the Subscription control.
Syntax
@jc:mb-subscription-control
[channel-name="channel name"]
[xquery="xquery"]
Attributes
channel-name
The name of the Message Broker channel to which the control subscribes. This is a required class-level annotation that cannot be overridden.
xquery
The XQuery expression that is evaluated for each message published to a subscribed channel. Messages that do not satisfy this expression are not dispatched to a subscribing business process. This is an optional class-level annotation that cannot be overridden.
@jc:mb-subscription-method Annotation
This section describes the method attributes supported for the Subscription control.
Syntax
@jc:mb-subscription-method
[filter-value-match="filter value match"]
Attributes
filter-value-match
The filter-value that the XQuery expression results must match for the message to be dispatched to a subscribing business process. This is an optional method-level annotation. Valid values for the filter-value-match annotation include a string constant that is compared directly to the XQuery results, or a method parameter in curly braces. For example: {parameter1}
@jc:mb-subscription-callback Annotation
This section describes the callback attributes supported for the Subscription control.
Syntax
@jc:mb-subscription-callback
[message-metadata="message metadata"]
[message-body="message body"]
Attributes
message-metadata
The name of a parameter in the callback method that receives the metadata from the message that triggered the subscription. This parameter can be of an XmlObject or typed XML.
message-body
The name of a parameter in the callback method that receives the body from the message that triggered the subscription. This parameter must be of type XmlObject (or a typed XBean), String, RawData, or a non-XML MFL class (a subclass of MflObject).