ABAP Keyword Documentation → ABAP − Reference → Obsolete Language Elements → Obsolete Calls
CALL METHOD - Static Method Call (Obsolete)
Other versions: 7.31 | 7.40 | 7.54
Obsolete Syntax
CALL METHOD { meth( )
| meth( a )
| meth( p1 = a1 p2 = a2 ... )
|
meth( [parameter_list] ) }.
CALL METHOD meth [parameter_list].
Effect
Both statements have the same semantics and call the method that is specified statically by the name meth
.
-
The first statement prefixes the standalone method call with a
CALL METHOD
. -
The second statement does not have any parentheses for passing values to the parameter interface. Instead, either an explicit
parameter list is specified or no parameter list at all
In the second variant without parentheses, no
chained method calls are possible and the operators
NEW
and CAST
cannot be used to specify the method.
Notes
-
CALL METHOD
is no longer recommended for static method calls.
- It is not necessary to prefix the recommended syntax with
CALL METHOD
since this would make programs harder to read.
- The syntax without parentheses is based on function module calls and is obsolete. The syntax involving parentheses, however, standardizes both standalone and functional method calls.
CALL METHOD
is now only intended for dynamic method calls and distinguishes them clearly from static calls.
-
The static method call described here is not to be confused with the call of
static methods. A static method call is the static specification of an
instance method or a static method. In addition, there is the
dynamic method call, for which the methods are specified dynamically.
Example
The three method calls in the following source code have the same meaning. The first two calls are the
obsolete variants with CALL METHOD
: one without parentheses and one with. The third call is the recommended variant, without CALL METHOD
.
CLASS cls DEFINITION.
PUBLIC SECTION.
METHODS do_something IMPORTING p1 TYPE i
p2 TYPE i
EXPORTING p3 TYPE i
p4 TYPE i
RETURNING VALUE(r) TYPE i.
ENDCLASS.
CLASS cls IMPLEMENTATION.
METHOD do_something.
...
ENDMETHOD.
ENDCLASS.
START-OF-SELECTION.
DATA(oref) = NEW cls( ).
CALL METHOD
oref->do_something
EXPORTING
p1 = 333
p2 = 444
IMPORTING
p3 = DATA(a1)
p4 = DATA(a2)
RECEIVING
r = DATA(a3).
CALL METHOD
oref->do_something(
EXPORTING
p1 = 333
p2 = 444
IMPORTING
p3 = DATA(b1)
p4 = DATA(b2)
RECEIVING
r = DATA(b3) ).
oref->do_something(
EXPORTING
p1 = 333
p2 = 444
IMPORTING
p3 = DATA(c1)
p4 = DATA(c2)
RECEIVING
r = DATA(c3) ).