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Maintain Filters for Outbound Event Topics

Requires Customer/Partner License
Beginner
25 min.
ABAP Development, Beginner, Tutorial, SAP Business Technology Platform
Maintain filters for outbound event topics. You can filter the events that should be sent via a channel by defining filters per channel and topic.
You will learn
  • How to add event filters to abstract entity
  • How to create an event filter
mervey45Merve TemelJune 17, 2024
Created by
mervey45
June 14, 2024
Contributors
mervey45

Prerequisites

Hint: Event filters for event topics containing wildcards are not supported.

You can define filters for context and custom extension context attributes defined for the corresponding event type. In the RESTful Application Programming framework (RAP), you can define a custom context attribute for your RAP business object (only for events) with the CDS annotation @event.context.attribute.

For more information on the CDS annotation, see: Event Annotations

The custom defined context attribute is then available as a property in the event filter creation wizard in the Enterprise Event Enablement ‒ Configure Channel Binding app.

Always replace ### with your initials or group number.

  • Step 1

    1. Open your abstract entity ZD_ItemOrdered_### in Eclipse and add the event annotation to ItemName:

      ABAP
      Copy
       @EndUserText.label: 'event parameter'
 define abstract entity ZD_ItemOrdered_###
 {
 @Event.context.attribute: 'xsapitemname'
 ItemName : abap.char(25);
 }
      filter

    2. Save and activate.

  • Step 2

    1. Log on to the SAP Fiori launchpad in the SAP S/4HANA Cloud system.

    2. Select the Enterprise Event Enablement ‒ Configure Channel Binding, in the Communication Management app.

      filter

    3. Choose your channel Z_EVT_0092_000.

      filter

      In the Outbound Topics table, the column Has Event Filters indicates whether filters are defined for the outbound topic.

    4. Create a new outbound topic binding, therefore select Create.

      filter

    5. Select the outbound topic binding zevent000/OnlineShop/create/v1 and click Create.

      filter

    6. Go back and select your outbound topic binding zevent000/OnlineShop/create/v1.

      filter

    7. Select the Event Filter tab to display existing filters for the outbound topic. To add a filter to the outbound topic, choose Create Event Filter.

      filter

    8. On the Create Event Filter dialog box, proceed as follows:

      Select a Property from the dropdown menu. The properties available in the dropdown menu are defined by the extension attributes.
      You can either choose your own defined property xsapitemname or use the standard context attributes.
      Select xsapitemname.

      Choose an Option from the dropdown menu to define the filter behavior. You can select Between … and … for xsapitemname.

      Define a Low Value. You can use the value help, if available for the respective property.

      If applicable, define a High Value.

      Click Create Event Filter.

      filter

      The new filter is added to the outbound topic. In accordance with existing filters, the new filter is added with an OR logic for inclusive options such as EQUALS. New filters are added with an AND logic for exclusive options such as NOT EQUALS. Different Properties are always AND connected.

      filter

      To delete a filter from an outbound event topic, select one or more filters and choose the Delete button.

  • Step 3

    For more information on the usage of event filters, refer to 3343266 Information published on SAP site.

  • Step 4

    Which annotation is needed in the abstract entity to make a field filterable?

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