Main Page | Namespace List | Class Hierarchy | Alphabetical List | Class List | File List | Namespace Members | Class Members | File Members | Search for 

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:

Inheritance graph
[legend]
Collaboration diagram for TAO_Storable_Bindings_Map:

Collaboration graph
[legend]
List of all members.

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 and .


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 and .

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.

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 and 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 , 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, 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.

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 and (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 and .

Definition at line 223 of file Storable_Naming_Context.cpp.

References ACE_TRACE, and TAO_Storable_IntId::type_.

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.

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 and 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. 

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.

CORBA::ORB_var TAO_Storable_Bindings_Map::orb_ [private]
 

Definition at line 201 of file Storable_Naming_Context.h.

The documentation for this class was generated from the following files:
Generated on Sun Jan 27 16:16:23 2008 for TAO_CosNaming by doxygen 1.3.6