METHODS

Reference

Syntax

METHODS meth [ABSTRACT|FINAL]
             [FOR EVENT evt OF {class|intf}]
  [ IMPORTING {{VALUE(p1)|REFERENCE(p1)|p1} typing [OPTIONAL|DEFAULT def1]
               {VALUE(p2)|REFERENCE(p2)|p2} typing [OPTIONAL|DEFAULT def2]
               ... }
              [PREFERRED PARAMETER p] ]
  [ EXPORTING {{VALUE(p1)|REFERENCE(p1)|p1} typing
               {VALUE(p2)|REFERENCE(p2)|p2} typing
              ... } ]
  [ CHANGING  {{VALUE(p1)|REFERENCE(p1)|p1} typing [OPTIONAL|DEFAULT def1]
               {VALUE(p2)|REFERENCE(p2)|p2} typing [OPTIONAL|DEFAULT def2]
              ... } ]
  [ RETURNING {VALUE(r)} typing ]
  [ {RAISING|EXCEPTIONS} exc1 exc2 ... ].

Effect

Declares an instance method meth in the declaration part of a class or in an interface.

Additions

• ABSTRACT
  Declares an abstract method that cannot be implemented in the same class.
  
  
• FINAL
  Declares a final method that cannot be redefined in a subclass.
  
  
• FOR EVENT evt OF {class|intf}
  Declares an event handler method that can handle the event evt of the class class or of the interface intf. Only input parameters are possible.
  
  
• IMPORTING
  Defines input parameters p1, p2, ...
  
  
• EXPORTING
  Defines output parameters p1, p2, ...
  
  
• CHANGING
  Defines an input/output parameter p1, p2, ...
  
  
• RETURNING
  Declares a functional method with a fully typed return value r.
  
  
• VALUE(p1) ... VALUE(p2) ...
  Defines the pass by value for a formal parameter.
  
  
• REFERENCE(p1)|p1 ... REFERENCE(p2)|p2 ...
  Defines the pass by reference for a formal parameter.
  
  
• typing
  Types the formal parameters.
  
  
• OPTIONAL|DEFAULT
  Defines optional input or input/output parameters either with or without the replacement parameters def1, def2, ...
  
  
• PREFERRED PARAMETER p
  Declares a parameter p of exclusively optional input parameters as preferred parameters.
  
  
• RAISING|EXCEPTIONS exc1 exc2 ...
  Declares either class-based exceptions exc1, exc2, ... that can be propagated from the subroutine, or defines exceptions exc1, exc2, ... that are not class-based.