SAP NEWS-46-TYPE-IDENTIFICATION documentation, setup help and example usage

Description of Data Types and Object Types at Runtime in Release 4.6A

From ABAP_99A , types can be described dynamically.

Previously, the statement DESCRIBE could only describe some of the ABAP types . With the introduction of ABAP Objects, an
RTTI concept based on system classes was implemented that enhances the description to include any data types and object types at runtime.

Example for the description of a field
tdescr = cl_abap_typedescr= describe_by_data( f ).

Example for the description of a data reference
tdescr ?= cl_abap_typedescr= describe_by_data_ref( dref ).

Example for the description of an object reference
tdescr ?= cl_abap_typedescr= describe_by_object_ref( oref ).

Examples for descriptions using type names
tdescr = cl_abap_typedescr= describe_by_name( name ).

The type description classes contain all of the attributes and methods that can be assigned to the properties of the different types.