CORBA::Object Class Reference

Implementation of a CORBA object reference. More...

#include <Object.h>

Inheritance diagram for CORBA::Object:
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Collaboration diagram for CORBA::Object:
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List of all members.

Public Types

typedef Object_ptr _ptr_type
typedef Object_var _var_type
typedef Object_out _out_type

Public Member Functions

virtual ~Object (void)
 Destructor.
virtual TAO_Abstract_ServantBase_servant (void) const
virtual CORBA::Boolean _is_collocated (void) const
virtual CORBA::Boolean _is_local (void) const
 Is this a local object?
virtual TAO::ObjectKey * _key (void)
 Object (TAO_Stub *p, CORBA::Boolean collocated=false, TAO_Abstract_ServantBase *servant=0, TAO_ORB_Core *orb_core=0)
 Constructor.
 Object (IOP::IOR *ior, TAO_ORB_Core *orb_core)
virtual TAO_Stub_stubobj (void) const
 Get the underlying stub object.
virtual TAO_Stub_stubobj (void)
virtual void _proxy_broker (TAO::Object_Proxy_Broker *proxy_broker)
 Set the proxy broker.
virtual CORBA::Boolean marshal (TAO_OutputCDR &cdr)
 Allows us to forbid marshaling of local interfaces.
CORBA::Boolean is_evaluated (void) const
 Accessor to the flag..
void set_collocated_servant (TAO_Abstract_ServantBase *)
 Mutator for setting the servant in collocated cases.
TAO_ORB_Coreorb_core (void) const
 Accessor for the ORB_Core..
IOP::IOR * steal_ior (void)
 Accessors for the underlying IOP::IOR's.
const IOP::IOR & ior (void) const
virtual bool can_convert_to_ior (void) const
 Can this object be stringified?
virtual char * convert_to_ior (bool use_omg_ior_format, const char *ior_prefix) const
Reference Count Managment

These are the standard CORBA object reference count manipulations methods.



virtual void _add_ref (void)
 Increment the reference count.
virtual void _remove_ref (void)
 Decrement the reference count.
virtual CORBA::ULong _refcount_value (void) const
 Get the refcount.

Static Public Member Functions

static CORBA::Boolean marshal (const Object_ptr x, TAO_OutputCDR &cdr)
static void _tao_any_destructor (void *)
 Used in the implementation of CORBA::Any.
static CORBA::Boolean is_nil_i (CORBA::Object_ptr obj)
 Uninlined part of the now-inlined CORBA::is_nil().
static void tao_object_initialize (Object *)
 Helper function for reading contents of an IOR.

Protected Member Functions

 Object (int dummy=0)
 Initializing a local object.
TAO::Object_Proxy_Broker * proxy_broker () const

Protected Attributes

TAO_Configurable_Refcount refcount_
 Number of outstanding references to this object.

Private Member Functions

 Object (const Object &)
Objectoperator= (const Object &)

Private Attributes

CORBA::Boolean is_local_
 Specify whether this is a local object or not.
CORBA::Boolean is_evaluated_
 Flag to indicate whether the IOP::IOR has been evaluated fully.
IOP::IOR_var ior_
TAO_ORB_Coreorb_core_
 Cached pointer of our ORB_Core.
TAO_Stubprotocol_proxy_
ACE_Lockobject_init_lock_
 Protect reference count manipulation from race conditions.

Spec defined methods

These methods are defined here since they are required by the CORBA spec in a form specified by the C++ mapping.



virtual CORBA::Boolean _is_a (const char *logical_type_id)
 Determine if we are of the type specified by the "logical_type_id".
virtual const char * _interface_repository_id (void) const
virtual CORBA::ULong _hash (CORBA::ULong maximum)
virtual CORBA::Boolean _is_equivalent (CORBA::Object_ptr other_obj)
virtual CORBA::Boolean _non_existent (void)
 Determine if we are of the type specified by the "logical_type_id".
virtual InterfaceDef_ptr _get_interface (void)
 Get info about the object from the Interface Repository.
virtual CORBA::Object_ptr _get_component (void)
 Get info about the object from the Interface Repository.
virtual char * _repository_id (void)
 Get the repository id.
virtual void _create_request (CORBA::Context_ptr ctx, const char *operation, CORBA::NVList_ptr arg_list, CORBA::NamedValue_ptr result, CORBA::Request_ptr &request, CORBA::Flags req_flags)
 Determine if we are of the type specified by the "logical_type_id".
virtual void _create_request (CORBA::Context_ptr ctx, const char *operation, CORBA::NVList_ptr arg_list, CORBA::NamedValue_ptr result, CORBA::ExceptionList_ptr exclist, CORBA::ContextList_ptr ctxtlist, CORBA::Request_ptr &request, CORBA::Flags req_flags)
 Determine if we are of the type specified by the "logical_type_id".
virtual CORBA::Request_ptr _request (const char *operation)
 DII operation to create a request.
virtual CORBA::ORB_ptr _get_orb (void)
 Determine if we are of the type specified by the "logical_type_id".
static CORBA::Object_ptr _duplicate (CORBA::Object_ptr obj)
 Increment the ref count.
static CORBA::Object_ptr _nil (void)
 Return a NULL object.
static CORBA::Object_ptr _narrow (CORBA::Object_ptr obj)
 No-op it is just here to simplify some templates.

Detailed Description

Implementation of a CORBA object reference.

All CORBA objects, both unconstrained and locality-constrained, inherit from this class. The interface is defined in the CORBA specification and the C++ mapping.


Member Typedef Documentation

Reimplemented in CORBA::LocalObject, and CORBA::Policy.

Reimplemented in CORBA::LocalObject, and CORBA::Policy.

Reimplemented in CORBA::LocalObject, and CORBA::Policy.


Constructor & Destructor Documentation

virtual CORBA::Object::~Object ( void   )  [virtual]

Destructor.

CORBA::Object::Object ( TAO_Stub p,
CORBA::Boolean  collocated = false,
TAO_Abstract_ServantBase servant = 0,
TAO_ORB_Core orb_core = 0 
)

Constructor.

This constructor should not be called when the protocol proxy is null ie. when the object is a LocalObject. Assert that requirement.

CORBA::Object::Object ( IOP::IOR *  ior,
TAO_ORB_Core orb_core 
)
CORBA::Object::Object ( int  dummy = 0  )  [protected]

Initializing a local object.

CORBA::Object::Object ( const Object  )  [private]

Member Function Documentation

void CORBA::Object::_add_ref ( void   )  [virtual]

Increment the reference count.

void CORBA::Object::_create_request ( CORBA::Context_ptr  ctx,
const char *  operation,
CORBA::NVList_ptr  arg_list,
CORBA::NamedValue_ptr  result,
CORBA::ExceptionList_ptr  exclist,
CORBA::ContextList_ptr  ctxtlist,
CORBA::Request_ptr request,
CORBA::Flags  req_flags 
) [virtual]

Determine if we are of the type specified by the "logical_type_id".

Reimplemented in CORBA::LocalObject.

void CORBA::Object::_create_request ( CORBA::Context_ptr  ctx,
const char *  operation,
CORBA::NVList_ptr  arg_list,
CORBA::NamedValue_ptr  result,
CORBA::Request_ptr request,
CORBA::Flags  req_flags 
) [virtual]

Determine if we are of the type specified by the "logical_type_id".

Reimplemented in CORBA::LocalObject.

CORBA::Object_ptr CORBA::Object::_duplicate ( CORBA::Object_ptr  obj  )  [static]

Increment the ref count.

Reimplemented in CORBA::LocalObject, and CORBA::Policy.

CORBA::Object_ptr CORBA::Object::_get_component ( void   )  [virtual]

Get info about the object from the Interface Repository.

Reimplemented in CORBA::LocalObject.

CORBA::InterfaceDef_ptr CORBA::Object::_get_interface ( void   )  [virtual]

Get info about the object from the Interface Repository.

Reimplemented in CORBA::LocalObject.

CORBA::ORB_ptr CORBA::Object::_get_orb ( void   )  [virtual]

Determine if we are of the type specified by the "logical_type_id".

Reimplemented in CORBA::LocalObject.

CORBA::ULong CORBA::Object::_hash ( CORBA::ULong  maximum  )  [virtual]

Return a (potentially non-unique) hash value for this object. This method relies on the representation of the object reference's private state. Since that changes easily (when different ORB protocols are in use) there is no default implementation.

Reimplemented in CORBA::LocalObject.

const char * CORBA::Object::_interface_repository_id ( void   )  const [virtual]

The repository ID for the most derived class, this is an implementation method and does no remote invocations!

Reimplemented in CORBA::Policy.

CORBA::Boolean CORBA::Object::_is_a ( const char *  logical_type_id  )  [virtual]

Determine if we are of the type specified by the "logical_type_id".

Reimplemented in CORBA::Policy.

CORBA::Boolean CORBA::Object::_is_collocated ( void   )  const [virtual]

Is this object collocated with the servant? Note this does not return this->is_collocated_ but will instead query the underlying stub for its collocation status

CORBA::Boolean CORBA::Object::_is_equivalent ( CORBA::Object_ptr  other_obj  )  [virtual]

Try to determine if this object is the same as other_obj. This method relies on the representation of the object reference's private state. Since that changes easily (when different ORB protocols are in use) there is no default implementation.

CORBA::Boolean CORBA::Object::_is_local ( void   )  const [virtual]

Is this a local object?

TAO::ObjectKey * CORBA::Object::_key ( void   )  [virtual]

Return the object key as an out parameter. Caller should release return value when finished with it.

Reimplemented in CORBA::LocalObject.

CORBA::Object_ptr CORBA::Object::_narrow ( CORBA::Object_ptr  obj  )  [static]

No-op it is just here to simplify some templates.

CORBA::Object_ptr CORBA::Object::_nil ( void   )  [static]

Return a NULL object.

Reimplemented in CORBA::LocalObject, and CORBA::Policy.

CORBA::Boolean CORBA::Object::_non_existent ( void   )  [virtual]

Determine if we are of the type specified by the "logical_type_id".

Reimplemented in CORBA::LocalObject.

void CORBA::Object::_proxy_broker ( TAO::Object_Proxy_Broker *  proxy_broker  )  [virtual]

Set the proxy broker.

CORBA::ULong CORBA::Object::_refcount_value ( void   )  const [virtual]

Get the refcount.

void CORBA::Object::_remove_ref ( void   )  [virtual]

Decrement the reference count.

char * CORBA::Object::_repository_id ( void   )  [virtual]

Get the repository id.

Reimplemented in CORBA::LocalObject.

CORBA::Request_ptr CORBA::Object::_request ( const char *  operation  )  [virtual]

DII operation to create a request.

Reimplemented in CORBA::LocalObject.

TAO_Abstract_ServantBase * CORBA::Object::_servant ( void   )  const [virtual]

Accessor for the cached servant reference held on the stub if this object is collocated

TAO_Stub * CORBA::Object::_stubobj ( void   )  [virtual]
TAO_Stub * CORBA::Object::_stubobj ( void   )  const [virtual]

Get the underlying stub object.

void CORBA::Object::_tao_any_destructor ( void *  x  )  [static]

Used in the implementation of CORBA::Any.

Reimplemented in CORBA::Policy.

bool CORBA::Object::can_convert_to_ior ( void   )  const [virtual]

Can this object be stringified?

char * CORBA::Object::convert_to_ior ( bool  use_omg_ior_format,
const char *  ior_prefix 
) const [virtual]

A hook to allow users to provide custom object stringification.

Note:
This method is intended to be used by classes that implement Smart Proxies and no others.
const IOP::IOR & CORBA::Object::ior ( void   )  const
CORBA::Boolean CORBA::Object::is_evaluated ( void   )  const

Accessor to the flag..

CORBA::Boolean CORBA::Object::is_nil_i ( CORBA::Object_ptr  obj  )  [static]

Uninlined part of the now-inlined CORBA::is_nil().

CORBA::Boolean CORBA::Object::marshal ( TAO_OutputCDR cdr  )  [virtual]

Allows us to forbid marshaling of local interfaces.

Reimplemented in CORBA::Policy.

CORBA::Boolean CORBA::Object::marshal ( const Object_ptr  x,
TAO_OutputCDR cdr 
) [static]

Marshalling operator used by the stub code. A long story why the stub code uses this, let us keep it short here.

Object& CORBA::Object::operator= ( const Object  )  [private]
TAO_ORB_Core * CORBA::Object::orb_core ( void   )  const

Accessor for the ORB_Core..

TAO::Object_Proxy_Broker * CORBA::Object::proxy_broker ( void   )  const [protected]

Convenience accessor for the object proxy broker of the underlying stub.

void CORBA::Object::set_collocated_servant ( TAO_Abstract_ServantBase b  ) 

Mutator for setting the servant in collocated cases.

This is used by the Object_Adapter to set the servant for collocated cases and only when the object is initialized. The object initialization takes place when IOR's are lazily evaluated.

IOP::IOR * CORBA::Object::steal_ior ( void   ) 

Accessors for the underlying IOP::IOR's.

The steal_ior () call basically relinquishes the ownership of the IOR. This is useful for cases when one wants to initialize a new CORBA Object

void CORBA::Object::tao_object_initialize ( CORBA::Object obj  )  [static]

Helper function for reading contents of an IOR.


Member Data Documentation

IOP::IOR_var CORBA::Object::ior_ [private]

If the IOR hasnt been evaluated fully, then the contents of the IOR that we received should be in here!

Flag to indicate whether the IOP::IOR has been evaluated fully.

Specify whether this is a local object or not.

Protect reference count manipulation from race conditions.

This lock is only instantiated for unconstrained objects. The reason for this is that locality-constrained objects that do not require reference counting (the default) may be instantiated in the critical path.

Cached pointer of our ORB_Core.

Be aware that this pointer can be zero or not. In fact there are two ways to get this pointer filled:

  • If CORBA::Object is constructed through one of the constructors with a stub and null ORB_Core, we use the orb_core from the stub to fill this pointer
  • If the other constructor, which uses IOP::IOR is used, a stub needs to be created first (i.e., the IOR needs to be evaluated first), in which case the ORB_Core would be null. The orb_core pointer then needs to be accessed from the stub and passed back as part of _get_orb().

Pointer to the protocol-specific "object" containing important profiling information regarding this proxy. The protocol proxy is (potentially) shared among several Objects

Number of outstanding references to this object.


The documentation for this class was generated from the following files:
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Defines

Generated on Fri Sep 11 04:10:09 2009 for TAO by  doxygen 1.6.1