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Overview Performs essentially the same function as CORBA::Object::_duplicate(). Original class CORBA::Object Exceptions CORBA::SystemException
Intended Usage
This method is provided for consistency with the _narrow methods provided by the C++ bindings for subclasses of CORBA::Object, which narrow a generic CORBA::Object to a more specific type. When narrowing from a CORBA::Object to a CORBA::Object, however, the method degenerates to a simple duplication. Hence, this method is equivalent to CORBA::Object::_duplicate.
IDL Syntax
static CORBA::Object_ptr _narrow (CORBA::Object_ptr obj);
Input parameters
- obj
- The CORBA::Object to be narrowed.The caller retains ownership of this object reference.
Return values
- CORBA::Object_ptr
- The narrowed (and duplicated) object reference. The caller assumes ownership of this object reference and should subsequently CORBA::release it.
Example
/* Assume the following idl interface: */ interface testObject { string testMethod (in long input_value, out float out_value); }; /* Here is the cpp code: */ CORBA::Object_ptr optr; /* instantiate optr somehow */ ... testObject_ptr test_obj = testObject::_narrow(optr); ...