| # Event Subscriptions (tlbct5500m000) Use this session to view and maintain subscriptions to event publishing services. You start this session from the Tools/ Integration Tools/ Event Publishing menu. This session shows the subscriptions to event publishing services, which are available in the LN application. These services are referred to as publishers. The subscriptions are specific to a business object of a particular LN company. All fields are presented in a read-only mode, so you can only view the subscription properties. To edit a subscription, you use the Subscribe (tlbct5220m000) session. For more information on subscriptions to event publishing services, refer to help topic How to subscribe to an event publishing service. This session has a details mode and an overview mode. Overview session The Event Subscriptions (tlbct5500m000) session starts in the overview mode. The overview mode can contain multiple Event Subscription records, which show the following fields: Company Business Object Event Consumer Destination Publisher Status For a description of these fields, refer to the Subscription tab and the Publisher tab of the details session. To view the subscription records from another company, specify the number of this company in the Event Subscriptions - Find dialog box (on the Edit menu, click Find). In the overview mode, you can start other sessions from the Specific menu to stop or start publishers, to check the current status of publishers and to create or edit subscriptions. To start these sessions for the selected subscription, use the following commands: Check and Continue Publishing Start/Stop Publishing Subscribe Unsubscribe For a more detailed description of these commands, refer to the Subscription tab of the details session. In the overview session, double click a subscription to start the details session for this subscription. Details session The details session shows the complete configuration of a single event subscription and has separate tabs for the Subscription data, the Publisher data and the Technical Details data. Subscription This tab contains the properties of the selected subscription. For a more detailed description, refer to the Subscribe (tlbct5220m000) session. Note A subscription is identified by the business object and the LN company to which this business object belongs. In a specific LN company, it is therefore not possible to create multiple subscriptions for one business object. Company The number of the LN company from which events are published through the business object. Business Object The business object that provides the event publishing service. Subscription settings Event Consumer The name of the application that consumes the published event messages. Destination The address the event messages are sent to. Event Actions The actions that can be performed on the displayed business object and that trigger an event. Selection and Filter Selection The attributes and components that will be included in the published event messages. Filter The filter that determines from which instances event messages are published. The filter is in an XML format that is specific to LN and that conforms to the BDE standards of LN. Check and Continue Publishing Starts the Check and Continue Publishing (tlbct5200m000) session. In this session, you can check the status of all available event publishing services (publishers). Start/Stop Publishing Starts the Start/Stop Publishing (tlbct5210m000) session. In this session, you can start or stop event publishing services of a specified range of subscriptions. When you stop a publishing service, the status publisher status becomes 'Paused'. Subscribe Starts the Subscribe (tlbct5220m000) session. In this session, you can create and edit subscriptions. Unsubscribe Deletes the selected subscription. You are asked to confirm the removal of the subscription. After confirmation, LN sends a unsubscribe request to the business object and subsequently informs you about the result. Among other things, the result will depend on authorization settings and dependency constraints. Caution After the unsubscribe command is carried out, the operation will be permanent. You cannot undo the command. Publisher This tab contains the properties of the event publishing service (publisher) of the current subscription. Publisher Settings Audit Profile The name of the audit profile used to monitor event actions. To view the audit profiles, run the Audit Profiles (ttaud3110m000) session. Publication Frequency The frequency used to monitor the event actions. The frequency is expressed in the number of seconds after which a check for new events will be done. Process Reference The number of the event publishing process. You can use this number when interpreting a trace file, if the tracing is carried out for multiple processes. Trace File The full path of the trace file in which the event publishing process is logged. Publisher Status Publisher Status The current status of the event publishing service (publisher). The status can have the following values:
Status | Description
--- | ---
Running | Publisher is started. To verify whether the publisher is actually running properly, use the Check Process command.
Interrupted | Publisher is not running because it has been interrupted by an external factor, such as a bshell termination.
Error | Publisher is not running because a fatal error occurred in the service process.
Paused | Publisher is paused, which means temporary stopped by a user.
Start Time The date and time the publisher started. The publisher will process all events that occurred in transactions that are committed on or after that time. End Time The date and time from the last event that was published. While the publisher is running, it will regularly update the End Time after publishing a number of events. If the publisher is not running, it will use the End Time to continue processing, so no events are lost as long as the subscription exists. Refresh Time The moment when the publisher must refresh its state. If the publisher's end time equals to its refresh time, the publisher is refreshed as defined by the Refresh Type value. Refresh Type Indicates whether the publishing process must refresh its state. The refresh type indicates what the publisher must do at refresh time. The refresh type can have the following values:
Value | Description
--- | ---
None | No refresh is needed.
New | The publisher must use new subscription settings after the moment indicated by the Refresh Time.
Pause | The publisher must pause.
Check Process Check the status of the current event publishing process. Pause Process Temporary stops the current publisher. The status of the publisher changes to `Paused`. This means that all occurring events remain in a queue and will not be processed until the publisher is reactivated. The command only applies to running publishers. Reactivate Process Starts the current publisher. The publisher will continue at the point where it was paused (or stopped because of an error). So, it will first process the backlog of events that are waiting in the queue before processing new events. The command applies to paused publishers and to publishers with status Error or Interrupted. Technical Details This tab contains the metadata of the Business Interface that provides the event publishing service. Technical Details Meta Data Meta data as used by the publisher. This data is only relevant if vendor support is required. |