Workflow Event Broker

Workflow Listener Meta-data

Workflow listener meta-data are used to record permanent subscriptions for workflow event notifications. The basic workflow event broker implementation that comes with OBE stores these data in the configuration file BasicWorkflowEventBroker.xml; the entries have this format:

<workflow-listener id="nmtoken" type="nmtoken"? threadsafe="true|false"?>
    <display-name .../>?
    <author .../>?
    <description .../>?
    <doc-url .../>?
    <impl-class .../>
    <impl-ctor-sig>?
        <class .../>*
    </impl-ctor-sig>
    <subscriptions>
        <listener event-type="nmtoken" event-mask="integer"/>*
    </subscriptions>
</workflow-listener>

impl-class: The fully qualified Java class name of the implementing class.
impl-ctor-sig: The nested class elements define the signature of the constructor for the specified class.
class: The fully qualified Java class name of the constructor parameter.
listener: Subscribes for specified events of the specified type:
event-type: Event type, one of: ActivityInstanceListener, AttributeInstanceListener, PackageListener, ProcessDefinitionListener, ProcessInstanceListener, TransitionListener, WorkItemListener.
event-mask: Integer bitmask to select which events should be notified, values as defined on the corresponding listener interface.