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//
// $Id$
//
#if !defined (SERVANT_BASE_H)
#define SERVANT_BASE_H
class TAO_Export TAO_ServantBase
{
// = TITLE
// Base class for skeletons and servants.
//
// = DESCRIPTION
// The POA spec requires that all servants inherit from this
// class.
//
public:
virtual ~TAO_ServantBase (void);
// destructor
TAO_ServantBase &operator= (const TAO_ServantBase &);
// assignment operator.
virtual PortableServer::POA_ptr _default_POA (CORBA::Environment &env);
virtual CORBA::Boolean _is_a (const char* logical_type_id,
CORBA::Environment &_tao_environment);
// Local implementation of the CORBA::Object::_is_a method.
virtual void dispatch (CORBA::ServerRequest &_tao_request,
void *_tao_context,
CORBA::Environment &_tao_environment);
// Dispatches a request to the object: find the operation, cast
// the type to the most derived type, demarshall all the
// parameters from the request and finally invokes the operation,
// storing the results and out parameters (if any) or the
// exceptions thrown into <_tao_request>.
// @@ TODO use a conformant name; since it is an
// internal (implementation) method its name should start with '_'
virtual int find (const CORBA::String &opname,
TAO_Skeleton &skelfunc);
// Find an operation in the operation table.
// @@ TODO use a conformant name; since it is an
// internal (implementation) method its name should start with '_'
virtual int bind (const CORBA::String &opname,
const TAO_Skeleton skel_ptr);
// Register a CORBA IDL operation name.
// @@ TODO use a conformant name; since it is an
// internal (implementation) method its name should start with '_'
TAO_IUnknown *get_parent (void) const;
// Get the "parent" in the QueryInterface hierarchy.
virtual const char *_interface_repository_id (void) const = 0;
// Get this interface's repository id
virtual void *_downcast (const char *repository_id);
// Get the correct vtable
virtual STUB_Object *_create_stub (CORBA_Environment &_env);
// This is an auxiliar method for _this() and _narrow().
protected:
TAO_ServantBase (void);
// Default constructor, only derived classes can be created.
TAO_ServantBase (const TAO_ServantBase &);
// Copy constructor, protected so no instances can be created.
void set_parent (TAO_IUnknown *p);
// Set the "parent" in the QueryInterface hierarchy.
// @@ TODO use a conformant name; since it is an
// internal (implementation) method its name should start with '_'
protected:
TAO_Operation_Table *optable_;
// The operation table for this servant, it is initialized by the
// most derived class.
TAO_IUnknown *parent_;
// @@ TODO find out why is this here....
};
class TAO_Export TAO_Local_ServantBase : public TAO_ServantBase
{
// = TITLE
// Base class for local skeletons and servants.
//
protected:
STUB_Object *_create_stub (CORBA_Environment &_env);
// This is an auxiliar method for _this(). Make sure *not* to
// register with the default POA
};
#endif /* SERVANT_BASE_H */
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