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TAO_Storable_Naming_Context Class Reference

This class plays a role of a 'ConcreteImplementor' in the Bridge pattern architecture of the CosNaming::NamingContext implementation. More...

#include <Storable_Naming_Context.h>

Inheritance diagram for TAO_Storable_Naming_Context:

[legend]Collaboration diagram for TAO_Storable_Naming_Context:

[legend]List of all members.

Public Types
typedef TAO_Storable_Bindings_Map::HASH_MAP	HASH_MAP
	Underlying data structure - typedef for ease of use. More...
Public Methods
	TAO_Storable_Naming_Context (CORBA::ORB_ptr orb, PortableServer::POA_ptr poa, const char poa_id, TAO_Naming_Service_Persistence_Factory factory, const ACE_TCHAR *persistence_directory, size_t hash_table_size=ACE_DEFAULT_MAP_SIZE)
	Constructor. More...
	TAO_Storable_Naming_Context (CORBA::ORB_ptr orb, PortableServer::POA_ptr poa, const char poa_id, TAO_Storable_Bindings_Map bm, TAO_Naming_Service_Persistence_Factory factory, const ACE_TCHAR persistence_directory, size_t hash_table_size=ACE_DEFAULT_MAP_SIZE)
	Constructor. More...
virtual	~TAO_Storable_Naming_Context (void)
	Destructor. More...
virtual CosNaming::NamingContext_ptr	new_context (ACE_ENV_SINGLE_ARG_DECL)
	This operation returns a new naming context implemented by the same naming server in which the operation was invoked. More...
virtual void	list (CORBA::ULong how_many, CosNaming::BindingList_out &bl, CosNaming::BindingIterator_out &bi ACE_ENV_ARG_DECL)
	Returns at most the requested number of bindings <how_many> in <bl>. More...
virtual void	rebind (const CosNaming::Name &n, CORBA::Object_ptr obj ACE_ENV_ARG_DECL)
	This is similar to <bind> operation above, except for when the binding for the specified name already exists in the specified context. More...
virtual void	bind (const CosNaming::Name &n, CORBA::Object_ptr obj ACE_ENV_ARG_DECL)
	Create a binding for name <n> and object <obj> in the naming context. More...
virtual void	bind_context (const CosNaming::Name &n, CosNaming::NamingContext_ptr nc ACE_ENV_ARG_DECL)
	This is the version of <bind> specifically for binding naming contexts, so that they will participate in name resolution when compound names are passed to be resolved. More...
virtual void	rebind_context (const CosNaming::Name &n, CosNaming::NamingContext_ptr nc ACE_ENV_ARG_DECL)
	This is a version of <rebind> specifically for naming contexts, so that they can participate in name resolution when compound names are passed. More...
virtual CORBA::Object_ptr	resolve (const CosNaming::Name &n ACE_ENV_ARG_DECL)
	Return object reference that is bound to the name. More...
virtual void	unbind (const CosNaming::Name &n ACE_ENV_ARG_DECL)
	Remove the name binding from the context. More...
virtual CosNaming::NamingContext_ptr	bind_new_context (const CosNaming::Name &n ACE_ENV_ARG_DECL)
	This operation creates a new context and binds it to the name supplied as an argument. More...
virtual void	destroy (ACE_ENV_SINGLE_ARG_DECL)
	Delete the naming context. More...
Static Public Methods
CosNaming::NamingContext_ptr	make_new_context (CORBA::ORB_ptr orb, PortableServer::POA_ptr poa, const char poa_id, size_t context_size, TAO_Naming_Service_Persistence_Factory factory, const ACE_TCHAR *persistence_directory ACE_ENV_ARG_DECL)
	This utility method factors out the code needed to create a new Storable Naming Context servant and activate it under the specified POA with the specified id. More...
CosNaming::NamingContext_ptr	recreate_all (CORBA::ORB_ptr orb, PortableServer::POA_ptr poa, const char poa_id, size_t context_size, int reentering, TAO_Naming_Service_Persistence_Factory factory, const ACE_TCHAR *persistence_directory ACE_ENV_ARG_DECL)
Protected Attributes
ACE_UINT32	counter_
	Counter used for generation of POA ids for children Naming Contexts. More...
TAO_Storable_Bindings_Map *	storable_context_
	A pointer to the underlying data structure used to store name bindings. More...
CORBA::ORB_ptr	orb_
TAO_Naming_Service_Persistence_Factory *	factory_
ACE_CString	persistence_directory_
	The directory in which to store the files. More...
Static Protected Attributes
CosNaming::NamingContext_ptr	root_context_

Detailed Description

This class plays a role of a 'ConcreteImplementor' in the Bridge pattern architecture of the CosNaming::NamingContext implementation.

This class provides a implementation of the NamingContext functionality, i.e., the state can be preserved across process boundaries. Derives from TAO_Hash_Naming_Context and uses TAO_Storable_Bindings_Map to store name to object bindings.

Member Typedef Documentation

typedef TAO_Storable_Bindings_Map::HASH_MAP TAO_Storable_Naming_Context::HASH_MAP

Underlying data structure - typedef for ease of use.

Constructor & Destructor Documentation

TAO_Storable_Naming_Context::TAO_Storable_Naming_Context ( CORBA::ORB_ptr orb,

PortableServer::POA_ptr poa,

const char * poa_id,

TAO_Naming_Service_Persistence_Factory * factory,

const ACE_TCHAR * persistence_directory,

size_t hash_table_size = ACE_DEFAULT_MAP_SIZE

)

Constructor.

TAO_Storable_Naming_Context::TAO_Storable_Naming_Context ( CORBA::ORB_ptr orb,

PortableServer::POA_ptr poa,

const char * poa_id,

TAO_Storable_Bindings_Map * bindings_map,

TAO_Naming_Service_Persistence_Factory * factory,

const ACE_TCHAR * persistence_directory,

size_t hash_table_size = ACE_DEFAULT_MAP_SIZE

)

Constructor.

TAO_Storable_Naming_Context::~TAO_Storable_Naming_Context ( void ) [virtual]

Destructor.

Member Function Documentation

void TAO_Storable_Naming_Context::bind ( const CosNaming::Name & n,

CORBA::Object_ptr obj ACE_ENV_ARG_DECL

) [virtual]

Create a binding for name <n> and object <obj> in the naming context.
Compound names are treated as follows: ctx->bind (<c1; c2; c3; cn>, obj) = (ctx->resolve (<c1; c2; cn-1>))->bind (<cn>, obj) if the there already exists a binding for the specified name, <AlreadyBound> exception is thrown. Naming contexts should be bound using <bind_context> and <rebind_context> in order to participate in name resolution later.
Reimplemented from TAO_Hash_Naming_Context.

void TAO_Storable_Naming_Context::bind_context ( const CosNaming::Name & n,

CosNaming::NamingContext_ptr nc ACE_ENV_ARG_DECL

) [virtual]

This is the version of <bind> specifically for binding naming contexts, so that they will participate in name resolution when compound names are passed to be resolved.

Reimplemented from TAO_Hash_Naming_Context.

CosNaming::NamingContext_ptr TAO_Storable_Naming_Context::bind_new_context ( const CosNaming::Name &n ACE_ENV_ARG_DECL ) [virtual]

This operation creates a new context and binds it to the name supplied as an argument.
The newly-created context is implemented by the same server as the context in which it was bound (the name argument excluding the last component).
Reimplemented from TAO_Hash_Naming_Context.

void TAO_Storable_Naming_Context::destroy ( ACE_ENV_SINGLE_ARG_DECL ) [virtual]

Delete the naming context.
The user should take care to <unbind> any bindings in which the given context is bound to some names, to avoid dangling references when invoking <destroy> operation. NOTE: <destory> is a no-op on the root context. NOTE: after <destroy> is invoked on a Naming Context, all BindingIterators associated with that Naming Context are also destroyed.
Reimplemented from TAO_Hash_Naming_Context.

void TAO_Storable_Naming_Context::list ( CORBA::ULong how_many,

CosNaming::BindingList_out & bl,

CosNaming::BindingIterator_out &bi ACE_ENV_ARG_DECL

) [virtual]

Returns at most the requested number of bindings <how_many> in <bl>.
If the naming context contains additional bindings, they are returned with a BindingIterator. In the naming context does not contain any additional bindings <bi> returned as null.
Reimplemented from TAO_Naming_Context_Impl.

CosNaming::NamingContext_ptr TAO_Storable_Naming_Context::make_new_context ( CORBA::ORB_ptr orb,

PortableServer::POA_ptr poa,

const char * poa_id,

size_t context_size,

TAO_Naming_Service_Persistence_Factory * factory,

const ACE_TCHAR *persistence_directory ACE_ENV_ARG_DECL

) [static]

This utility method factors out the code needed to create a new Storable Naming Context servant and activate it under the specified POA with the specified id.
This function is static so that the code can be used, both from inside the class (e.g., <new_context>), and from outside (e.g., Naming_Utils.cpp).

CosNaming::NamingContext_ptr TAO_Storable_Naming_Context::new_context ( ACE_ENV_SINGLE_ARG_DECL ) [virtual]

This operation returns a new naming context implemented by the same naming server in which the operation was invoked.
The context is not bound.
Reimplemented from TAO_Naming_Context_Impl.

void TAO_Storable_Naming_Context::rebind ( const CosNaming::Name & n,

CORBA::Object_ptr obj ACE_ENV_ARG_DECL

) [virtual]

This is similar to <bind> operation above, except for when the binding for the specified name already exists in the specified context.
In that case, the existing binding is replaced with the new one.
Reimplemented from TAO_Hash_Naming_Context.

void TAO_Storable_Naming_Context::rebind_context ( const CosNaming::Name & n,

CosNaming::NamingContext_ptr nc ACE_ENV_ARG_DECL

) [virtual]

This is a version of <rebind> specifically for naming contexts, so that they can participate in name resolution when compound names are passed.

Reimplemented from TAO_Hash_Naming_Context.

CosNaming::NamingContext_ptr TAO_Storable_Naming_Context::recreate_all ( CORBA::ORB_ptr orb,

PortableServer::POA_ptr poa,

const char * poa_id,

size_t context_size,

int reentering,

TAO_Naming_Service_Persistence_Factory * factory,

const ACE_TCHAR *persistence_directory ACE_ENV_ARG_DECL

) [static]

CORBA::Object_ptr TAO_Storable_Naming_Context::resolve ( const CosNaming::Name &n ACE_ENV_ARG_DECL ) [virtual]

Return object reference that is bound to the name.
Compound name resolve is defined as follows: ctx->resolve (<c1; c2; cn>) = ctx->resolve (<c1; c2 cn-1>)->resolve (<cn>) The naming service does not return the type of the object. Clients are responsible for "narrowing" the object to the appropriate type.
Reimplemented from TAO_Hash_Naming_Context.

void TAO_Storable_Naming_Context::unbind ( const CosNaming::Name &n ACE_ENV_ARG_DECL ) [virtual]

Remove the name binding from the context.
When compound names are used, unbind is defined as follows: ctx->unbind (<c1; c2; cn>) = (ctx->resolve (<c1; c2; cn-1>))->unbind (<cn>)
Reimplemented from TAO_Hash_Naming_Context.

Member Data Documentation

ACE_UINT32 TAO_Storable_Naming_Context::counter_ [protected]

Counter used for generation of POA ids for children Naming Contexts.

TAO_Naming_Service_Persistence_Factory* TAO_Storable_Naming_Context::factory_ [protected]

CORBA::ORB_ptr TAO_Storable_Naming_Context::orb_ [protected]

ACE_CString TAO_Storable_Naming_Context::persistence_directory_ [protected]

The directory in which to store the files.

CosNaming::NamingContext_ptr TAO_Storable_Naming_Context::root_context_ [static, protected]

TAO_Storable_Bindings_Map* TAO_Storable_Naming_Context::storable_context_ [protected]

A pointer to the underlying data structure used to store name bindings.
While our superclass (TAO_Hash_Naming_Context) also maintains a pointer to the data structure, keeping this pointer around saves us from the need to downcast when invoking non-virtual methods.

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

Generated on Thu Oct 10 22:17:51 2002 for TAO_CosNaming by

TAO_Storable_Naming_Context Class Reference

Public Types

Public Methods

Static Public Methods

Protected Attributes

Static Protected Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation