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

#include <Persistent_Naming_Context.h>

Inheritance diagram for TAO_Persistent_Naming_Context:

Collaboration diagram for TAO_Persistent_Naming_Context:

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

Public Member Functions
int	init (size_t hash_table_size=ACE_DEFAULT_MAP_SIZE)

	TAO_Persistent_Naming_Context (PortableServer::POA_ptr poa, const char poa_id, TAO_Persistent_Context_Index context_index, HASH_MAP map=0, ACE_UINT32 counter=0)

virtual	~TAO_Persistent_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)

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

virtual void	rebind (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)

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 (PortableServer::POA_ptr poa, const char poa_id, size_t context_size, TAO_Persistent_Context_Index ind)

Protected Member Functions
void	set_cleanup_level (int level)

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

Protected Attributes
ACE_UINT32 *	counter_

TAO_Persistent_Bindings_Map *	persistent_context_

TAO_Persistent_Context_Index *	index_

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_

Detailed Description

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

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

Member Typedef Documentation

typedef TAO_Persistent_Bindings_Map::HASH_MAP TAO_Persistent_Naming_Context::HASH_MAP

Underlying data structure - typedef for ease of use.

Constructor & Destructor Documentation

TAO_Persistent_Naming_Context::TAO_Persistent_Naming_Context	(	PortableServer::POA_ptr	poa,
		const char *	poa_id,
		TAO_Persistent_Context_Index *	context_index,
		HASH_MAP *	map = `0`,
		ACE_UINT32 *	counter = `0`
	)

Constructor that takes in preallocated data structure and takes ownership of it. This constructor is for 'recreating' servants from persistent state. If no map is provided, it MUST be followed up by <init> to allocate the underlying data structure from persistent storage!

TAO_Persistent_Naming_Context::~TAO_Persistent_Naming_Context ( void )

virtual

Destructor.

Member Function Documentation

int TAO_Persistent_Naming_Context::init ( size_t hash_table_size = ACE_DEFAULT_MAP_SIZE )

Allocate the underlying data structure from persistent storage. Returns 0 on success and -1 on failure.

void TAO_Persistent_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.

CosNaming::NamingContext_ptr TAO_Persistent_Naming_Context::make_new_context	(	PortableServer::POA_ptr	poa,
		const char *	poa_id,
		size_t	context_size,
		TAO_Persistent_Context_Index *	ind
	)

static

This utility method factors out the code needed to create a new Persistent 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_Persistent_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_Persistent_Naming_Context::set_cleanup_level ( int level )

protected

Set <destroyed_> flag (inherited from TAO_Hash_Naming_Context) to <level>. Legal values for <destroyed_> are 0, 1, and 2. The values specify the extent of cleanup that should take place in the context's destructor: '0' - no cleanup (e.g., if the context goes out of scope, but it's state is to remain in persistent storage); '1' - free up the underlying data structure in persistent storage (e.g., if the initialization of this context was only partially completed due to some failures, and we need to roll back); '2' - free up the underlying data structure, and deregister this naming context from its <index_> (e.g., if the context had <destroy> method invoked and needs to be completely removed from existence).

Member Data Documentation

ACE_UINT32* TAO_Persistent_Naming_Context::counter_

protected

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

TAO_Persistent_Context_Index* TAO_Persistent_Naming_Context::index_

protected

A pointer to the index object of this naming service: it keeps track of all the naming contexts created. Every time we make a new context or destroy one, we need to make an entry there. Also, we get the allocator needed to initialize us from this guy.

TAO_Persistent_Bindings_Map* TAO_Persistent_Naming_Context::persistent_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:

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation