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:

Collaboration diagram for TAO_Storable_Naming_Context:

Classes
class	File_Open_Lock_and_Check
	File guard specific for storable naming contexts. More...

Public Types
typedef TAO_Storable_Bindings_Map::HASH_MAP	HASH_MAP
	Underlying data structure - typedef for ease of use. More...

Public Member Functions
	TAO_Storable_Naming_Context (CORBA::ORB_ptr orb, PortableServer::POA_ptr poa, const char poa_id, TAO_Storable_Naming_Context_Factory cxt_factory, TAO::Storable_Factory *factory, 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 (void)

virtual void	list (CORBA::ULong how_many, CosNaming::BindingList_out &bl, CosNaming::BindingIterator_out &bi)

virtual void	rebind (const CosNaming::Name &n, CORBA::Object_ptr obj)

virtual void	bind (const CosNaming::Name &n, CORBA::Object_ptr obj)

virtual void	bind_context (const CosNaming::Name &n, CosNaming::NamingContext_ptr nc)

virtual void	rebind_context (const CosNaming::Name &n, CosNaming::NamingContext_ptr nc)

virtual CORBA::Object_ptr	resolve (const CosNaming::Name &n)

virtual void	unbind (const CosNaming::Name &n)

virtual CosNaming::NamingContext_ptr	bind_new_context (const CosNaming::Name &n)

virtual void	destroy (void)

Public Member Functions inherited from TAO_Hash_Naming_Context
	TAO_Hash_Naming_Context (PortableServer::POA_ptr poa, const char *poa_id)
	Constructor. More...

void	interface (TAO_Naming_Context *i)
	Set our <interface_> pointer. More...

virtual	~TAO_Hash_Naming_Context (void)
	Destructor. More...

TAO_Naming_Context *	interface (void)
	Get the pointer to our <interface>. More...

int	root (void)

int	destroyed (void)

virtual PortableServer::POA_ptr	_default_POA (void)
	Returns the Default POA of this Servant object. More...

Public Member Functions inherited from TAO_Naming_Context_Impl
virtual	~TAO_Naming_Context_Impl (void)
	Destructor. More...

virtual void	stale (bool value)

virtual bool	stale (void)

Static Public Member Functions
static CosNaming::NamingContext_ptr	make_new_context (CORBA::ORB_ptr orb, PortableServer::POA_ptr poa, const char context_id, TAO_Storable_Naming_Context_Factory cxt_factory, TAO::Storable_Factory pers_factory, TAO_Storable_Naming_Context *new_context)

static CosNaming::NamingContext_ptr	recreate_all (CORBA::ORB_ptr orb, PortableServer::POA_ptr poa, const char context_id, size_t context_size, int reentering, TAO_Storable_Naming_Context_Factory cxt_factory, TAO::Storable_Factory *pers_factory, int use_redundancy)

Protected Member Functions
virtual void	context_written (void)

virtual bool	is_obsolete (time_t stored_time)

int	load_map (TAO::Storable_Base &storable)

void	Write (TAO::Storable_Base &wrtr)

Protected Member Functions inherited from TAO_Hash_Naming_Context
CosNaming::NamingContext_ptr	get_context (const CosNaming::Name &name)

Protected Attributes
ACE_UINT32	counter_
	Counter used for generation of transients. More...

TAO_Storable_Bindings_Map *	storable_context_

CORBA::ORB_var	orb_

ACE_CString	context_name_

PortableServer::POA_var	poa_
	The POA that this context was registered with. More...

TAO_Storable_Naming_Context_Factory *	context_factory_

TAO::Storable_Factory *	factory_

ACE_CString	persistence_directory_
	The directory in which to store the files. More...

size_t	hash_table_size_
	Save the hash table initial size. More...

time_t	last_changed_
	Disk time that match current memory state. More...

int	write_occurred_
	Is set by the Write operation. Used to determine. More...

Protected Attributes inherited from TAO_Hash_Naming_Context
TAO_Bindings_Map *	context_

TAO_Naming_Context *	interface_

TAO_SYNCH_RECURSIVE_MUTEX	lock_
	Lock used to serialize access to the underlying data structure. More...

int	destroyed_

PortableServer::POA_var	poa_
	POA we are registered with. More...

ACE_CString	poa_id_

Static Protected Attributes
static ACE_UINT32	gcounter_

static int	redundant_
	Flag to tell us whether we are redundant or not. More...

static const char *	root_name_

static ACE_Auto_Ptr < TAO::Storable_Base >	gfl_
	The pointer to the global file used to allocate new contexts. More...

Friends
class	File_Open_Lock_and_Check

class	TAO_Storable_Naming_Context_ReaderWriter

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_Storable_Naming_Context_Factory *	cxt_factory,
		TAO::Storable_Factory *	factory,
		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
	)

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
	)

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 )

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::context_written ( void )

protectedvirtual

An internal callback invoked by the File_Open_Lock_and_Check object to signal that this context was updated and written to disk. This will have been done after the file is closed. Check the last_changed_ attribute for the time of the write.

void TAO_Storable_Naming_Context::destroy ( void )

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.

bool TAO_Storable_Naming_Context::is_obsolete ( time_t stored_time )

protectedvirtual

An internal callback invoked by the File_Open_Lock_and_Check object to determine if this context is obsolete with respect to the file object .

void TAO_Storable_Naming_Context::list	(	CORBA::ULong	how_many,
		CosNaming::BindingList_out &	bl,
		CosNaming::BindingIterator_out &	bi
	)

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.

Implements TAO_Naming_Context_Impl.

int TAO_Storable_Naming_Context::load_map ( TAO::Storable_Base & storable )

protected

CosNaming::NamingContext_ptr TAO_Storable_Naming_Context::make_new_context	(	CORBA::ORB_ptr	orb,
		PortableServer::POA_ptr	poa,
		const char *	context_id,
		TAO_Storable_Naming_Context_Factory *	cxt_factory,
		TAO::Storable_Factory *	pers_factory,
		TAO_Storable_Naming_Context **	new_context
	)

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 ( void )

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.

Implements TAO_Naming_Context_Impl.

void TAO_Storable_Naming_Context::rebind	(	const CosNaming::Name &	n,
		CORBA::Object_ptr	obj
	)

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
	)

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 *	context_id,
		size_t	context_size,
		int	reentering,
		TAO_Storable_Naming_Context_Factory *	cxt_factory,
		TAO::Storable_Factory *	pers_factory,
		int	use_redundancy
	)

static

CORBA::Object_ptr TAO_Storable_Naming_Context::resolve ( const CosNaming::Name & n )

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 )

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.

void TAO_Storable_Naming_Context::Write ( TAO::Storable_Base & wrtr )

protected

Friends And Related Function Documentation

friend class File_Open_Lock_and_Check

friend

friend class TAO_Storable_Naming_Context_ReaderWriter

friend

Member Data Documentation

TAO_Storable_Naming_Context_Factory* TAO_Storable_Naming_Context::context_factory_

protected

ACE_CString TAO_Storable_Naming_Context::context_name_

protected

The name of the context used as its object id when registered with the POA.

ACE_UINT32 TAO_Storable_Naming_Context::counter_

protected

Counter used for generation of transients.

TAO::Storable_Factory* TAO_Storable_Naming_Context::factory_

protected

ACE_UINT32 TAO_Storable_Naming_Context::gcounter_

staticprotected

Global counter used for generation of POA ids for children Naming Contexts.

ACE_Auto_Ptr< TAO::Storable_Base > TAO_Storable_Naming_Context::gfl_

staticprotected

The pointer to the global file used to allocate new contexts.

size_t TAO_Storable_Naming_Context::hash_table_size_

protected

Save the hash table initial size.

time_t TAO_Storable_Naming_Context::last_changed_

protected

Disk time that match current memory state.

CORBA::ORB_var TAO_Storable_Naming_Context::orb_

protected

ACE_CString TAO_Storable_Naming_Context::persistence_directory_

protected

The directory in which to store the files.

PortableServer::POA_var TAO_Storable_Naming_Context::poa_

protected

The POA that this context was registered with.

int TAO_Storable_Naming_Context::redundant_

staticprotected

Flag to tell us whether we are redundant or not.

const char * TAO_Storable_Naming_Context::root_name_

staticprotected

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.

int TAO_Storable_Naming_Context::write_occurred_

protected

Is set by the Write operation. Used to determine.

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

Classes

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Static Protected Attributes

Friends

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation