TAO_Storable_Bindings_Map Class Reference

Provides hash-table-based transient storage for name to object bindings in a Naming Context. More...

#include <Storable_Naming_Context.h>

Inheritance diagram for TAO_Storable_Bindings_Map:

[legend]Collaboration diagram for TAO_Storable_Bindings_Map:


Public Types
typedef ACE_Hash_Map_Manager< TAO_Storable_ExtId, TAO_Storable_IntId, ACE_Null_Mutex >	HASH_MAP
	Underlying data structure - typedef for ease of use.
Public Member Functions
	TAO_Storable_Bindings_Map (size_t hash_table_size, CORBA::ORB_ptr orb)
	Constructor.
virtual	~TAO_Storable_Bindings_Map (void)
	Destructor.
HASH_MAP &	map (void)
	Get a reference to the underlying hash map.
size_t	total_size (void)
	Return the size of the underlying hash table.
virtual size_t	current_size (void)
virtual int	bind (const char id, const char kind, CORBA::Object_ptr obj, CosNaming::BindingType type)
virtual int	rebind (const char id, const char kind, CORBA::Object_ptr obj, CosNaming::BindingType type)
virtual int	unbind (const char id, const char kind)
virtual int	find (const char id, const char kind, CORBA::Object_ptr &obj, CosNaming::BindingType &type)
Private Member Functions
int	shared_bind (const char id, const char kind, CORBA::Object_ptr obj, CosNaming::BindingType type, int rebind)
	Helper: factors common code from <bind> and <rebind>.
Private Attributes
HASH_MAP	map_
	Hash map used for storage.
CORBA::ORB_var	orb_

Detailed Description

Provides hash-table-based transient storage for name to object bindings in a Naming Context.

A thin wrapper on top of ACE_Hash_Map_Manager. Supports TAO_Bindings_Map interface. Used by TAO_Transient_Naming_Context.

Definition at line 119 of file Storable_Naming_Context.h.

Member Typedef Documentation

typedef ACE_Hash_Map_Manager<TAO_Storable_ExtId, TAO_Storable_IntId, ACE_Null_Mutex> TAO_Storable_Bindings_Map::HASH_MAP

Underlying data structure - typedef for ease of use.

Definition at line 126 of file Storable_Naming_Context.h.

Constructor & Destructor Documentation

TAO_Storable_Bindings_Map::TAO_Storable_Bindings_Map	(	size_t	hash_table_size,
		CORBA::ORB_ptr	orb
	)

Constructor.

Definition at line 188 of file Storable_Naming_Context.cpp.

References ACE_TRACE.

00190   : map_ (hash_table_size),
00191     orb_(CORBA::ORB::_duplicate (orb))
00192 {
00193   ACE_TRACE("TAO_Storable_Bindings_Map");
00194 }

TAO_Storable_Bindings_Map::~TAO_Storable_Bindings_Map ( void ) [virtual]

Destructor.

Definition at line 196 of file Storable_Naming_Context.cpp.

References ACE_TRACE.

00197 {
00198   ACE_TRACE("~TAO_Storable_Bindings_Map");
00199 }

Member Function Documentation

int TAO_Storable_Bindings_Map::bind	(	const char *	id,
		const char *	kind,
		CORBA::Object_ptr	obj,
		CosNaming::BindingType	type
	)			`[virtual]`

Add a binding with the specified parameters to the table. Return 0 on success and -1 on failure, 1 if there already is a binding with <id> and <kind>.

Implements TAO_Bindings_Map.

Definition at line 146 of file Storable_Naming_Context.cpp.

References ACE_TRACE, and shared_bind().

Referenced by TAO_Storable_Naming_Context::load_map().

00150 {
00151   ACE_TRACE("bind");
00152   return this->shared_bind (id, kind, obj, type, 0);
00153 }

size_t TAO_Storable_Bindings_Map::current_size ( void ) [virtual]

Return current number of entries (name bindings) in the underlying hash map.

Implements TAO_Bindings_Map.

Definition at line 209 of file Storable_Naming_Context.cpp.

References ACE_TRACE, ACE_Hash_Map_Manager_Ex< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK >::current_size(), and map_.

Referenced by TAO_Storable_Naming_Context::Write().

00210 {
00211   ACE_TRACE("current_size");
00212   return map_.current_size ();
00213 }

int TAO_Storable_Bindings_Map::find	(	const char *	id,
		const char *	kind,
		CORBA::Object_ptr &	obj,
		CosNaming::BindingType &	type
	)			`[virtual]`

Find the binding containing <id> and <kind> in the table, and pass binding's type and object back to the caller by reference. Return 0 on success and -1 on failure. Note: a 'duplicated' object reference is assigned to <obj>, so the caller is responsible for its deallocation.

Implements TAO_Bindings_Map.

Definition at line 166 of file Storable_Naming_Context.cpp.

References ACE_TRACE, orb_, TAO_Storable_IntId::ref_, and TAO_Storable_IntId::type_.

00170 {
00171   ACE_TRACE("find");
00172   TAO_Storable_ExtId name (id, kind);
00173   TAO_Storable_IntId entry;
00174 
00175   if (this->map_.find (name, entry) != 0)
00176     {
00177       return -1;
00178     }
00179   else
00180     {
00181       obj = orb_->string_to_object (entry.ref_.in());
00182       type = entry.type_;
00183 
00184       return 0;
00185     }
00186 }

TAO_Storable_Bindings_Map::HASH_MAP & TAO_Storable_Bindings_Map::map ( void )

Get a reference to the underlying hash map.

Definition at line 202 of file Storable_Naming_Context.cpp.

References ACE_TRACE, and map_.

Referenced by TAO_Storable_Naming_Context::list(), and TAO_Storable_Naming_Context::Write().

00203 {
00204   ACE_TRACE("map");
00205   return map_;
00206 }

int TAO_Storable_Bindings_Map::rebind	(	const char *	id,
		const char *	kind,
		CORBA::Object_ptr	obj,
		CosNaming::BindingType	type
	)			`[virtual]`

Overwrite a binding containing <id> and <kind> (or create a new one if one doesn't exist) with the specified parameters. Return 0 or 1 on success. Return -1 or -2 on failure. (-2 is returned if the new and old bindings differ in type).

Implements TAO_Bindings_Map.

Definition at line 156 of file Storable_Naming_Context.cpp.

References ACE_TRACE, and shared_bind().

00160 {
00161   ACE_TRACE("rebind");
00162   return this->shared_bind (id, kind, obj, type, 1);
00163 }

int TAO_Storable_Bindings_Map::shared_bind	(	const char *	id,
		const char *	kind,
		CORBA::Object_ptr	obj,
		CosNaming::BindingType	type,
		int	rebind
	)			`[private]`

Helper: factors common code from <bind> and <rebind>.

Definition at line 223 of file Storable_Naming_Context.cpp.

References ACE_TRACE, ACE_Hash_Map_Manager_Ex< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK >::bind(), map_, orb_, and ACE_Hash_Map_Manager_Ex< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK >::rebind().

Referenced by bind(), and rebind().

00228 {
00229   ACE_TRACE("shared_bind");
00230   TAO_Storable_ExtId new_name (id, kind);
00231   CORBA::String_var ior = orb_->object_to_string(obj);
00232   TAO_Storable_IntId new_entry (ior.in(), type);
00233   TAO_Storable_IntId old_entry;
00234 
00235   if (rebind == 0)
00236     {
00237       // Do a normal bind.
00238       return this->map_.bind (new_name, new_entry);
00239     }
00240   else
00241     // Rebind.
00242     {
00243       // Check that types of old and new entries match.
00244       if (this->map_.find (new_name,
00245                            old_entry) == 0
00246           && type != old_entry.type_)
00247         return -2;
00248 
00249       else
00250         return this->map_.rebind (new_name, new_entry);
00251     }
00252 }

size_t TAO_Storable_Bindings_Map::total_size ( void )

Return the size of the underlying hash table.

Definition at line 216 of file Storable_Naming_Context.cpp.

References ACE_TRACE, map_, and ACE_Hash_Map_Manager_Ex< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK >::total_size().

Referenced by TAO_Storable_Naming_Context::new_context().

00217 {
00218   ACE_TRACE("total_size");
00219   return map_.total_size ();
00220 }

int TAO_Storable_Bindings_Map::unbind	(	const char *	id,
		const char *	kind
	)			`[virtual]`

Remove a binding containing <id> and <kind> from the table. Return 0 on success and -1 on failure.

Implements TAO_Bindings_Map.

Definition at line 138 of file Storable_Naming_Context.cpp.

References ACE_TRACE, map_, and ACE_Hash_Map_Manager_Ex< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK >::unbind().

00139 {
00140   ACE_TRACE("unbind");
00141   TAO_Storable_ExtId name (id, kind);
00142   return this->map_.unbind (name);
00143 }

Member Data Documentation

HASH_MAP TAO_Storable_Bindings_Map::map_ [private]

Hash map used for storage.

Definition at line 199 of file Storable_Naming_Context.h.

Referenced by current_size(), map(), shared_bind(), total_size(), and unbind().

CORBA::ORB_var TAO_Storable_Bindings_Map::orb_ [private]

Definition at line 201 of file Storable_Naming_Context.h.

Referenced by find(), and shared_bind().

The documentation for this class was generated from the following files:

Generated on Tue Feb 2 17:49:11 2010 for TAO_CosNaming by

1.4.7

TAO_Storable_Bindings_Map Class Reference

Public Types

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation