Holder Classes II
Each holder class has a constructor from an instance, a default constructor, and has a public instance member, value, which is the typed value.
The default constructor sets the value field to the default value for the type as defined by the Java language:
- false for boolean, 0 for numeric and char types, null for strings, null for object references.
In order to support portable stubs and skeletons, holder classes for user defined types also have to implement the org.omg.CORBA.portable.Streamable interface.
The holder classes for the basic types are illustrated on next foil. Note that they do not implement the Streamable interface. They are in the org.omg.CORBA package.