Interfaces in ABAP Objects

[Former Member]

some body please tell why this code snippet is giving a syntax error

syntax error:interface component "INTERF~A" doesnot exist

interface interf.

data a type i.

aliases a1 for interf~a.

endinterface.

class abc definition.

public section.

interfaces interf.

private section.

methods use.

endclass.

class abc implementation.

method use.

endmethod.

endclass.

data obj type ref to abc.

start-of-selection.

create object obj.

[Rocky1]

Hi,

Its giving error because aliases cannot be declared within an interface for the component of same interface. You can create aliases for the component of interface a in interface b or in a class. For example the following is valid:

INTERFACE I1.

METHODS method1.

ENDINTERFACE.

INTERFACE I2

METHODS method2

ALIASES m1 for I1~method1.

ENDINTERFACE.

Hope it will help you.

Thanks & Regards

Rocky

[Former Member]

Try out with this code and let me know if it works.

interface interf.

data a type i.

endinterface.

• Here, create a second Interface 'interf_added' & use aliasing ''a1'' for the component 'a' of Interface ' interf' within it**

interface interf_added.

aliases a1 for interf~a.

endinterface.

class abc definition.

public section.

interfaces interf_added.

private section.

methods use.

endclass.

class abc implementation.

method use.

endmethod.

endclass.

data obj type ref to abc.

start-of-selection.

create object obj.