Get Example source ABAP code based on a different SAP table
ABAP_EML - MODIFY AUGMENTING ENTITY This example demonstrates the ABAP_EML MODIFY statement with the addition AUGMENTING with a RAP projection business object. Base BDEF The base BDEF is the managed RAP behavior definition DEMO_MANAGED_ROOT_WAS. It defines the behavior for two entities which are connected via a CDS composition relation. BDEF DEMO_MANAGED_ROOT_WAS Projection BDEF The projection BDEF reuses the standard operations from the base BDEF and augments the create, update, and create-by-association operations. BDEF DEMO_MANAGED_ROOT_PROJ Behavior implementation For the above projection BDEF, one behavior pool is created. The global class of the behavior pool is BP_DEMO_MANAGED_ROOT_PROJ. The actual behavior implementation takes place in local classes that are defined and implemented in the BP_DEMO_MANAGED_ROOT_PROJ=====CCIMP of the behavior pool. In the behavior pool, operation augmentation is implemented in the following methods:
augment_create Augments an original base instance for the operation create. Whenever new instances are created, the value of field field1 is set to create_augment.
augment_update Augments an original base instance for the operation update. Whenever an existing entity instance is updated, the value of field field4 is set to 222.
augment_cba_child Augments an original base instance for the operation create by association. Whenever new child instances are created via the parent entity, the value of field field2 is set to cba_augment.
ABAP_DESCRIPTION Access with ABAP using EML The above source code uses EML to access the RAP business object from an ABAP class:
Using an ABAP_EML MODIFY statement, two parent entity instances are created. In the same request, one of the created instances gets updated. The operation augmentation automatically adds the value create_augment for field field1 for each entity instance. For the updated entity instance, field4 is set to 222.
With a further ABAP_EML MODIFY statement, a child entity instance for each parent entity instance is created via a create-by-association operation. The operation augmentation automatically adds the value cba_augment for field field2 for each newly created child entity instance.
The output window shows the database entries of the root and child entities' tables.
