ABAP Keyword Documentation →  ABAP − Reference →  Creating Objects and Values →  CREATE OBJECT 

CREATE OBJECT - TYPE

Quick Reference

Other versions: 7.31 | 7.40 | 7.54

Syntax

CREATE OBJECT oref [area_handle] 

                   TYPE { class
 [parameter_list] } 

                 
    | { (name) [
parameter_list|
parameter_tables] }. 

Effect

Creates an instance of an explicitly specified class. A concrete class that is more specific than or identical to the static type of the object reference variable oref can be specified. The reference variable oref can be a class reference variable or an interface reference variable. The name of the class can be specified as follows:

• class
  

Specified directly and statically as class.

• (name)
  

Specified as the content of a character-like data object name. The data object name must contain the name of the class in uppercase letters when the statement is executed. The class name in name can also be an absolute type name. The following can be specified for name:

• Literal or constant
  
  If the data object name is specified as a character literal or as a constant, it can be evaluated statically and the specified class is identified as the used object.

• Variable
  
  If the data object name is specified as a variable, it is specified only dynamically and the content is not evaluated statically.

When the statement is executed, name is not evaluated until runtime (in both cases).

The class must be usable at the current location:

• The addition CREATE of the class definition must permit objects to be created.
• The package check must permit an object of a global class to be created.
  

Notes

• If the class is specified dynamically, the parameters can either be specified statically in parameter_list or dynamically in parameter_tables.
• When a class is used, the instance operator NEW acts like the statement CREATE OBJECT oref TYPE class and can be used in general expression positions. The content of name cannot be specified dynamically here.
  

Security Note

If used wrongly, creating objects dynamically can present a serious security risk. Names of classes that are passed to a program from the outside must be checked thoroughly before being used in dynamic statements. The system class CL_ABAP_DYN_PRG, for example, can be used to do this. See Dynamic Calls.

Example

Creates an instance of a class cls using an explicit reference to the class. The static type of the reference variable is the root class object and is therefore more general than any other class. Components must be accessed dynamically or a cast must be performed (as shown here).

CLASS cls DEFINITION. 
  PUBLIC SECTION. 
    DATA attr TYPE string VALUE 'Object'. 
ENDCLASS. 

DATA oref TYPE REF TO object. 

CREATE OBJECT oref TYPE cls. 

cl_demo_output=>display( CAST cls( oref ) ).