ABAP Keyword Documentation → ABAP - Reference → Declarations → Declaration Statements → Data Types and Data Objects → Declaring Data Objects
STATICS
Other versions: 7.31 | 7.40 | 7.54
Syntax
STATICS stat [options].
Effect
Declares static variables stat. The statement STATICS for declaring static variables can only be used in
static methods,
function modules, and subroutines.
The naming conventions apply to the stat
name. The syntax of the additions options is the same as for the statement
DATA for declaring normal variables.
Only the additions READ-ONLY, BOXED, and the declaration of
LOB handle structures are not possible.
As with normal local variables, variables declared with STATICS are only visible within the
procedure. The lifespan of
a variable declared with STATICS is the same as that of a global data object. The variable is created once when the
master program is loaded to the
internal session, and its content is assigned the
start value of the
VALUE addition. Calling and ending the procedure have no effect on the lifespan and content.
Note
In instance methods, the statement STATICS is not allowed. Instead,
static attributes
of the class declared using CLASS-DATA can be used.
Example
The subroutine add_one returns the same result for the variable local
for each call as this is instantiated 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.
cl_demo_output=>display( ).
FORM add_one.
DATA local TYPE i VALUE 10.
STATICS static TYPE i VALUE 10.
local = local + 1.
static = static + 1.
cl_demo_output=>write( |Local: { local }, | &&
|Static: { static }| ).
ENDFORM.