Pure CORBA

Multiple Inheritance and the Delegation (Tie) Approach (Example 4)

Example 4 introduces multiple IDL inheritance and shows you how to implement multiply inheriting interfaces in C++ and Java. The following sections discuss multiple inheritance issues in greater detail, paying particular attention to dealing with the limitations of Java.

Multiple Inheritance of Interfaces

In C++, the servant inheritance hierarchy is generally arranged in parallel to the IDL interface inheritance hierarchy. For example, Figure 2.5 illustrates the servant inheritance hierarchy for the BookRepository_FlexibleCollectionImpl class.

Figure 2.5. The C++ servant inheritance hierarchy for the BookRepository_FlexibleCollectionImpl class.

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When ...