generating-cds-type-definitions-d3940d1.md

Generating CDS Type Definitions

The following code sample illustrates how you can generate a CDS simple type with the XCO library by means of running a PUT operation:

Sample Code:

DATA(lo_put_operation) = xco_cp_generation=>environment->dev_system( '$TRANSPORT_REQUEST$'
  )->create_put_operation( ).
 
DATA(lo_form_specifation) = lo_put_operation->for-drty->add_object( 'ZMY_CDS_TYPE_DEFINITION'
  )->set_package( 'ZMY_PACKAGE'
  )->create_form_specification( ).
lo_form_specifation->set_short_description( 'Generated CDS Type Definition' ).
 
DATA(lo_simple_type_definition) = lo_form_specifation->add_simple_type_definition( ).
lo_simple_type_definition->add_annotation( 'EndUserText.label' )->value->build(
  )->add_string( 'My CDS type definition' ).
 
lo_simple_type_definition->set_type( xco_cp_abap_dictionary=>built_in_type->char( 10 ) ).
 
lo_put_operation->execute( ).

Running this PUT operation will produce the CDS type definition ZMY_CDS_TYPE_DEFINITION with the following source:

Sample Code:

@EndUserText.label: 'My CDS type definition'
define type  ZMY_CDS_TYPE_DEFINITION : abap.char( 10 )

In general, the following objects are eligible to be used as the type for a simple type definition:

• ABAP dictionary built-in type (objects of type CL_XCO_AD_BUILT_IN_TYPE)
• Data elements (objects of type IF_XCO_AD_DATA_ELEMENT)
• CDS type definitions (objects of type IF_XCO_CDS_TYPE_DEFINITION)

CDS type definitions can also be deleted again, as is illustrated by the following code sample:

Sample Code:

DATA(lo_delete_operation) = xco_cp_generation=>environment->dev_system( '$TRANSPORT_REQUEST$'
  )->for-drty->create_delete_operation( ).
lo_delete_operation->add_object( 'ZMY_CDS_TYPE_DEFINITION' ).
lo_delete_operation->execute( ).