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ID CREATE-OBJECT • CREATE OBJECT ABAP Statement
CREATE OBJECT Short Reference
ABAP_SYNTAX_FORMS
Specifying the Class Implicitly 1 CREATE OBJECT oref $[ area_handle$] $[ parameter_list$].
Specifying the Class Explicitly 2 CREATE OBJECT oref $[ area_handle$] TYPE ${ class $[ parameter_list$] $} $| ${ (name) $[ parameter_list $|parameter_tables$] $}.
What does it do? The statement CREATE OBJECT an object as an instance of a class and assigns the reference to the object to the reference variable oref. The instance constructor of the class is called directly after the object is created. By default, the object is created in the ABAP_ISESS (or heap) of the current program and is preserved there for as long as it is required. If no more heap references point to the object, the following applies:
No more object references point to the object.
No data reference and no field symbol points to an instance attribute or to a part of an instance attribute, Also, if no more methods of the object are registered as event handlers, it is deleted by the Garbage Collector . BEGIN_SECTION VERSION 5 OUT The addition area_handle can be used to create the object as a shared object. END_SECTION VERSION 5 OUT The reference variable oref must be declared as an object reference variable. Instance components of an object created using CREATE OBJECT can only be accessed using object reference variables (see Data Objects in Operand Positions). The addition TYPE can be used to specify the class of the created object. The static type of the object reference variables must be more general than or identical to the class of the created object, in accordance with the rules for Assignments Between Object Reference Variables. Instances of a class can be created only where it is allowed by the addition CREATE of the statement CLASS DEFINITION. It can be a local class of the same ABAP program or a global class of the class library allowed by the package check. The additions parameter_list and parameter_tables must be used to fill the non-optional input parameters of the first explicitly implemented instance constructor that is on the path of the inheritance tree between the instantiated class and the root class object. These additions can also be used to assign return values to the non-class-based exceptions of the instance constructor. If a catchable exception is raised when the object is created in the runtime framework, the object is not created and the object reference variable oref is initialized. If a catchable exception is raised when the object is created in the instance constructor of the class, the created object is deleted and the object reference variable oref is initialized. ABAP_SUBRC_GENERAL If the CREATE OBJECT statement is executed successfully, sy-subrc is set to 0. Values other than 0 can occur when specifying EXCEPTIONS in parameter_spec when non-class-based exceptions of the instance constructor are handled.
Latest notes:
If the reference variable oref specified after CREATE OBJECT is passed simultaneously to the instance constructor, it already points to the new object when it is executed. To pass a reference to an existing object to the instance constructor, a different reference variable must be used.
The statement CREATE OBJECT creates a heap reference. All references that point to the object or its parts are also heap references and keep the object alive. The same applies to field symbols that point to instance attributes or to their parts.
If 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 return code sy-subrc is set to 0 if the statement is successful because the instance constructor is called. sy-subrc is set each time a method is called . NON_V5_HINTS ABAP_HINT_END
Runtime Exceptions
Catchable Exceptions CX_SY_CREATE_OBJECT_ERROR
Reason for error:
An attempt was made to instantiate an abstract class.
Runtime error:
CREATE_OBJECT_CLASS_ABSTRACT
Reason for error:
The class specified in the addition TYPE does not exist.
Runtime error:
CREATE_OBJECT_CLASS_NOT_FOUND
Reason for error:
The class specified dynamically in TYPE does not match the type of the reference variable.
Runtime error:
MOVE_OREF_NOT_CONVERTIBLE
Reason for error:
An attempt was made to instantiate a private class externally.
Runtime error:
CREATE_OBJECT_CREATE_PRIVATE
Reason for error:
An attempt was made to instantiate a protected class externally.
Runtime error:
CREATE_OBJECT_CREATE_PROTECTED
Non-catchable Exceptions
Reason for error:
A reference must be specified as the target variable.
