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STATICS
Simple Static Field Definitions
- STATICS f.
- STATICS f(len).
Structured Static Data Object Definitions
- STATICS: BEGIN OF struc,
...
END OF struc.
Structured Static Internal Table Definition
- STATICS itab TYPE tabtype [WITH HEADER LINE].
- STATICS itab TYPE tabkind OF linetype
[WITH [UNIQUE|NON-UNIQUE] keydef]
[INITIAL SIZE n] [WITH HEADER LINE].
- STATICS itab LIKE tabkind OF lineobj
[WITH [UNIQUE|NON-UNIQUE] keydef]
[INITIAL SIZE n] [WITH HEADER LINE].
- STATICS itab TYPE linetype OCCURS n [WITH HEADER LINE].
- STATICS itab LIKE lineobj OCCURS n [WITH HEADER LINE].
- STATICS: BEGIN OF itab OCCURS n,
...
END OF itab [VALID BETWEEN f1 AND f2].
STATICS itab TYPE RANGE OF type.
STATICS itab LIKE RANGE OF f
Effect
The STATICS statement is a variation of the DATA statement. It allows you todefine variables in a procedure (i.e. a FORM or FUNCTION)with local visibility, but static validity.
This statement is not allowed in methods. See STATICS not allowed in instancemethods.
Local visibility means that static variables, like normal local
variables created with DATA, can be accessed by their name only withinthe defining procedure.
Static validity means that, unlike normal local variables, thelife of static variables does not depend on the defining procedure, buton the program at runtime. Static variables are thus not redefined onthe stack each time the defining procedure is called, but existindependently of this in the program and keep their value, regardlessof calls to the defining procedure.
Like all other data objects, static variablesalways have a particular data type. Data types and data objects areimportant components of the ABAP typeconcept.
Example
DATA RESULT TYPE I.
PERFORM RANDOM CHANGING RESULT.
FORM RANDOM CHANGING P_RESULT TYPE I.
STATICS L_STATE TYPE I.
L_STATE = ( L_STATE * 113 + 34 ) MOD 256.
P_RESULT = L_STATE.
ENDFORM.
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Regard,
Rich Heilman
- SAP Managed Tags:
