What does it do? Determine actions allow the RAP BO consumer to execute determinations and validations on request. Whenever a determine action is executed, the determinations and validations assigned to it are evaluated and then only those determinations and validations are executed whose trigger conditions are fulfilled. A determine action can include determinations defined as on save and validations. Determinations defined as on modify are not allowed. If the optional addition always is used, then all determinations and validations that are part of the determine action are executed regardless of their trigger conditions. After a determination with the flag always has been executed, it can be triggered again by other determinations belonging to the same determine action. Determinations and validations of child entities can be included using the syntax child~childDetermination or child~childValidation , as long as these validations and determinations do not include the trigger operation delete. Execution order: Determinations are executed first, validations afterwards. The execution order among determinations or validations themselves is defined by the RAP framework and is independent of the specified order within the determine action. The following RAP BDL operation additions are possible:
internal to make the respective determine action accessible only from within the business object implementation.
authorization:none excludes the operation in question from authorization checks.
authorization:update delegates the authorization control to the authorization check that is implemented for the update operation. The optional addition extensible is only available for draft-enabled BOs . It allows a RAP BO consumer to add own validations or determinations to the determine action in question via a BDEF extension. For further details on extensibility enabling, see topic TITLE .
ABAP_AVAILABILITY
Managed RAP BOs
Unmanaged and draft-enabled RAP BOs. ABAP_CAUTION Not available for unmanaged, non-draft RAP BOs.
Projection BOs ABAP_AVAILABILITY_END In a managed RAP BO, determine actions do not require an implementation in the ABAP behavior pool (ABP), but the determinations and validations included in a determine action must be implemented. In an unmanaged RAP BO , determine actions require an implementation in the RAP handler method FOR MODIFY in the ABAP behavior pool. In a projection BDEF, determine actions from the base BDEF can be reused. For details on reuse, see topic TITLE . It is not possible to specify new determine actions in a projection BDEF.
ABAP_FURTHER_INFO Development guide for the ABAP RESTful Application Programming Model, topic Action Definition.
Latest notes: The draft determine action Prepare is the draft pendant to determine actions. It is documented in topic RAP BDL - draft actions. NON_V5_HINTS ABAP_HINT_END
ABAP_EXAMPLE_VX5 The following example shows a managed BDEF based on the on the CDS root view entity DEMO_SALES_CDS_SO_3. The root view entity represents a sales order and the child entity represents a sales order item. The determine action trigger_all includes the following two determinations, one from in the root entity and one from the child entity:
setID assigns values to the semantic key field SalesOrderId during the save sequence whenever a new entity instance is created.
TotalPrice sums up the price of all items of a sales order. It is triggered whenever a new sales order is created. BDEF DEMO_SALES_CDS_SO_3 The determinations are implemented in the behavior pool BP_DEMO_SALES_CDS_SO_3. The class CL_DEMO_CDS_DETERMINE_ACTION accesses the business object using EML and carries out the following steps:
It first inserts data into the BO's persistent database tables using AB_SQL . That means that BO entity instances are available in the database, but the determinations haven't yet been triggered.
The determine action trigger_all is executed with the statement MODIFY ENTITIES for two entity instances. For these two entity instances, the fields ID and TotalPrice are determined. Code snippet: ABEXA 01533
The determined values are committed to the database with the statement COMMIT ENTITIES. Result: values for the fields ID and TotalPrice are determined. IMAGE ABDOC_DET_ACTION.png 503 263 ABAP_EXAMPLE_END
