ABAP Keyword Documentation →  ABAP − Release-Specific Changes →  Changes in Release 7.0, EhP2 

Lazy Loading of Programs for Release 7.0, EhP2

When compiling an ABAP program before Release 7.0, EhP2, all associated include programs were loaded when first accessing a global class, a global interface, or a type group. These includes contain declarations of the corresponding class, interface, or type pool which can be used globally.

As of Release 7.0, EhP2, these include programs are not loaded until an element declared in them is actually required. For example, a class class is no longer loaded when a TYPE REF TO class type reference is made, but when a component of the class is accessed or the class itself.

This internal optimization of the ABAP Compiler has the following additional consequences:

1.The TYPE-POOLS statement is obsolete

2.The LOAD addition for CLASS and INTERFACE is obsolete

Other versions: 7.31 | 7.40 | 7.54

Modification 1

The TYPE POOLS statement is obsolete

The TYPE POOLS statement is no longer required for the use of a data type, a constant, or a macro from a type group. The elements of a type group can now be addressed in the same way as all other objects in ABAP Dictionary without previously loading the type group.

TYPE POOLS statements are ignored by the ABAP Compiler as of Release 7.0, EhP2, and can be deleted.

In list processing in particular, the include programs <LIST>, <SYMBOL>, <ICON>, <LINE>, and <COLOR> are no longer needed, since they only contain TYPE-POOLS statements.

Modification 2

The LOAD addition for CLASS and INTERFACE is obsolete

The now rarely used statements

• CLASS ... DEFINITION LOAD.
• INTERFACE ... LOAD.
  

are no longer required

As of Release 7.0, EhP2 these statements are ignored by the ABAP Compiler and can be deleted.