How can I inherit from two different IDL interfaces?

Suppose there is an idl file:

module Example 
{
   interface Simple1 : ACS::ACSComponent {
      void Routine1();
   };


  interface Simple2 : ACS::ACSComponent {
    void Routine2();
  };
};

And I want to write a component which implements both of these interfaces. Should I:

1) Create an interface which inherits from both of these, and then do the implementation as usual?

OR

2) Create an implementation which inherits from both of the POA classes for the two interfaces (generated from IDL) of both of these?

The answer is 1 - create an interface which inherits from both of the interfaces, then proceed as usual. Your IDL file, then, would end up looking something like this:

module Example 
{
   interface Simple1 : ACS::ACSComponent {
      void Routine1();
   };


  interface Simple2 : ACS::ACSComponent {
    void Routine2();
  };

  interface Derived: Simple1, Simple2 {};

};

and you would implement the interface Derived.