ABAP Keyword Documentation → ABAP - Reference → Declarative statemnts → Data Types and Data Objects → Declaring Data Objects
STATICS
Other versions: 7.31 | 7.40 | 7.54
Syntax
STATICS stat [options].
Effect
Declaration of static variables stat. The statement STATICS for declaring static variables can only be used in
subroutines,
function modules, and static methods.
The naming conventions apply to the stat
name. The syntax for the additions options is used for declaring normal variables
as with the statement DATA. Only
the additions READ-ONLY and BOXED, and the declaration of
LOB handle structures are not possible.
As with normal local variables, one with STATICS declared variables can only be viewed in its
procedure. The life of a
variable with STATICS declared variables corresponds to the same one of a global data object. The variable is generated once when loading the
framework program in the internal mode, and the contents set to the
start value of the VALUE addition. Calling and ending the procedure have no effect on the life and content.
Note
In instance methods, the statement STATICS is not allowed. Instead, you can use
static attributes
of the class, declared with CLASS-DATA.
Example
The subroutine add_one gets the same result for the variable local
for each call as this is instanced again each time. The static variable static is already available and its value increased by 1 during each call.
DO 10 TIMES.
PERFORM add_one.
ENDDO.
FORM add_one.
DATA local TYPE i VALUE 10.
STATICS static TYPE i VALUE 10.
local = local + 1.
static = static + 1.
WRITE: / local, static.
ENDFORM.