Package com.thingworx.metadata.annotations

Annotation Interface ThingworxSubscription

@Target(ANNOTATION_TYPE) @Retention(RUNTIME) @ThingworxExtensionApiAnnotation(since={6,6}) public @interface ThingworxSubscription
Defines a subscription that the entity wishes to handle. Subscriptions defined with this annotation can target standard events and property events, and may also specify a source entity. The source entity should be another entity that is part of the platform, the extension, or an entity in a dependent extension.
See Also:

  • Required Element Summary

    Required Elements
    Modifier and Type
    Required Element
    Description
    String
    eventName
    Required parameter: the name of the event to subscribe to.
    String
    handler
    Required parameter: the name of the service that should be invoked whenever the subscription receives an event.

  • Optional Element Summary

    Optional Elements
    Modifier and Type
    Optional Element
    Description
    String
    description
    Optional parameter: A short description for the service.
    boolean
    enabled
    Optional parameter: whether the subscription should listen for events.
    String
    name
    Optional parameter: The name of the Subscription.
    String
    source
    Optional parameter: the name of the entity to subscribe to for events.
    String
    sourceProperty
    Optional parameter: the name of the property that this subscription should monitor.

  • Element Details

    • name

      String name
      Optional parameter: The name of the Subscription. For now, to maintain backwards compatibility with previous versions wherein Subscriptions did not contain names, this is not required. The name will be required in the future.
      Default:
      ""

    • description

      String description
      Optional parameter: A short description for the service. The description should provide information on functionality of the Subscription and any other pertinent information for users.
      Default:
      ""

    • source

      String source
      Optional parameter: the name of the entity to subscribe to for events. If blank or omitted, then the current entity is assumed.
      Default:
      ""

    • eventName

      String eventName
      Required parameter: the name of the event to subscribe to. Event names are case sensitive.

    • sourceProperty

      String sourceProperty
      Optional parameter: the name of the property that this subscription should monitor. This parameter is required when subscribing to property events. Property names are case sensitive.
      Default:
      ""

    • enabled

      boolean enabled
      Optional parameter: whether the subscription should listen for events. Note that if it is intended for subscriptions to listen for events immediately, then you must specify this parameter and assign to true.
      Default:
      false

    • handler

      String handler
      Required parameter: the name of the service that should be invoked whenever the subscription receives an event. The service must belong to the entity defining the subscription.