ABAPCREATE_DATA_HANDLE - CREATE DATA HANDLE

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CREATE DATA - HANDLE

Short Reference

Syntax

CREATE DATA dref [area_handle]
                 TYPE HANDLE handle.

Effect

With the HANDLE addition, the CREATE DATA statement creates a data object whose data type is described by anRTTStype object. For handle, a reference variable of the static type of classCL_ABAP_DATADESCR or its subclasses has to bespecified; this reference variable must point to a type object. The type object may have been created by using the RTTS methods on existing data objects, or by dynamically defining a new data type.

The type object must describe a non-generic type. Only with type objects for the generic ABAP types c, n, p, and x, is a newbound data type with thedefaultvalues created and used. Similarly with a type object for a standard table with a generic table type, a new bound table type with a standard key is created and used.

Note

Important methods for dynamically defining data types are:

• GET_C, GET_D, GET_F ... of class CL_ABAP_ELEMDESCRfor type objects of elementary data types. Either a new type object is created in accordance with the input parameters or an existing one is reused.
  
  
• GET of classes CL_ABAP_STRUCTDESCR, CL_ABAP_TABLEDESCR, and CL_ABAP_REFDESCR as well as GET_BY_NAME of classCL_ABAP_REFDESCR for type objects of structures,internal tables and reference variables. These methods return the type object that is specified by means of the input parameters. Either a new type object is created or an existing one is reused.
  
  
• CREATE of classes CL_ABAP_STRUCTDESCR, CL_ABAP_TABLEDESCR, and CL_ABAP_REFDESCR for creating type objectsfor structures, internal tables, and reference variables. These methods return the type object that is specified by means of the input parameters. A new type object is always created.
  
  
  

Note

We recommend using the GET instead of CREATE methods in order to avoid creating multiple type objects for a particular type.

Example

Refer to Creating a Structure Using RTTC.

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