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 193 of file Storable_Naming_Context.cpp.

References ACE_TRACE. 

00195   : map_ (hash_table_size),
00196     orb_(CORBA::ORB::_duplicate (orb))
00197 {
00198   ACE_TRACE("TAO_Storable_Bindings_Map");
00199 }

TAO_Storable_Bindings_Map::~TAO_Storable_Bindings_Map (  void   )  [virtual]
 

Destructor.

Definition at line 201 of file Storable_Naming_Context.cpp.

References ACE_TRACE. 

00202 {
00203   ACE_TRACE("~TAO_Storable_Bindings_Map");
00204 }

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 148 of file Storable_Naming_Context.cpp.

References ACE_TRACE, and shared_bind().

Referenced by TAO_Storable_Naming_Context::load_map(). 

00152 {
00153   ACE_TRACE("bind");
00154   return this->shared_bind (id, kind, obj, type, 0);
00155 }

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 214 of file Storable_Naming_Context.cpp.

References ACE_TRACE.

Referenced by TAO_Storable_Naming_Context::Write(). 

00215 {
00216   ACE_TRACE("current_size");
00217   return map_.current_size ();
00218 }

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 168 of file Storable_Naming_Context.cpp.

References ACE_CHECK_RETURN, ACE_DECLARE_NEW_CORBA_ENV, ACE_ENV_ARG_PARAMETER, ACE_TRACE, TAO_Storable_IntId::ref_, and TAO_Storable_IntId::type_. 

00172 {
00173   ACE_TRACE("find");
00174   TAO_Storable_ExtId name (id, kind);
00175   TAO_Storable_IntId entry;
00176 
00177   if (this->map_.find (name,
00178                        entry) != 0)
00179     {
00180       return -1;
00181     }
00182   else
00183     {
00184       ACE_DECLARE_NEW_CORBA_ENV;
00185       obj = orb_->string_to_object (entry.ref_.in() ACE_ENV_ARG_PARAMETER);
00186       ACE_CHECK_RETURN (-1);
00187       type = entry.type_;
00188 
00189       return 0;
00190     }
00191 }

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

Get a reference to the underlying hash map.

Definition at line 207 of file Storable_Naming_Context.cpp.

References ACE_TRACE.

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

00208 {
00209   ACE_TRACE("map");
00210   return map_;
00211 }

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 158 of file Storable_Naming_Context.cpp.

References ACE_TRACE, and shared_bind(). 

00162 {
00163   ACE_TRACE("rebind");
00164   return this->shared_bind (id, kind, obj, type, 1);
00165 }

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 228 of file Storable_Naming_Context.cpp.

References ACE_TRACE, and TAO_Storable_IntId::type_.

Referenced by bind(), and rebind(). 

00233 {
00234   ACE_TRACE("shared_bind");
00235   TAO_Storable_ExtId new_name (id, kind);
00236   CORBA::String_var ior = orb_->object_to_string(obj);
00237   TAO_Storable_IntId new_entry (ior.in(), type);
00238   TAO_Storable_IntId old_entry;
00239 
00240   if (rebind == 0)
00241     {
00242       // Do a normal bind.
00243       return this->map_.bind (new_name, new_entry);
00244     }
00245   else
00246     // Rebind.
00247     {
00248       // Check that types of old and new entries match.
00249       if (this->map_.find (new_name,
00250                            old_entry) == 0
00251           && type != old_entry.type_)
00252         return -2;
00253 
00254       else
00255         return this->map_.rebind (new_name, new_entry);
00256     }
00257 }

size_t TAO_Storable_Bindings_Map::total_size (  void   ) 
 

Return the size of the underlying hash table.

Definition at line 221 of file Storable_Naming_Context.cpp.

References ACE_TRACE.

Referenced by TAO_Storable_Naming_Context::new_context(). 

00222 {
00223   ACE_TRACE("total_size");
00224   return map_.total_size ();
00225 }

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 139 of file Storable_Naming_Context.cpp.

References ACE_TRACE. 

00141 {
00142   ACE_TRACE("unbind");
00143   TAO_Storable_ExtId name (id, kind);
00144   return this->map_.unbind (name);
00145 }

Member Data Documentation

HASH_MAP TAO_Storable_Bindings_Map::map_ [private]
 

Hash map used for storage.

Definition at line 200 of file Storable_Naming_Context.h.

CORBA::ORB_var TAO_Storable_Bindings_Map::orb_ [private]
 

Definition at line 202 of file Storable_Naming_Context.h.

The documentation for this class was generated from the following files:
Generated on Thu Nov 9 13:57:47 2006 for TAO_CosNaming by doxygen 1.3.6