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Corba und Rexx 


 The Interface Definition Language (IDL)

        Is a object oriented descriptive Language
        Syntactically oriented on  C++, but without operational features
        Interfaces as Central part of IDL to define almost every objekt in corba

        IDL contains Operations, which map onto Methods in objectoriented Languages 
        or normal functions in procedural Languages

        Interfaces can be arranged in modules

        Provides Inheritance, even multiple Inheritence, but not overriding of methods            

        Provides Polimorphism by method  narrow()


Folien-Nr. 14