org.omg.CosNaming

Class NamingContextExtPOATie

java.lang.Object

org.omg.PortableServer.Servant

org.omg.CosNaming.NamingContextExtPOA

org.omg.CosNaming.NamingContextExtPOATie

All Implemented Interfaces:

InvokeHandler, NamingContextExtOperations, NamingContextOperations

public class NamingContextExtPOATie
extends NamingContextExtPOA

NamingContextExt is the extension of NamingContext which contains a set of name bindings in which each name is unique and is part of Interoperable Naming Service. Different names can be bound to an object in the same or different contexts at the same time. Using NamingContextExt, you can use URL-based names to bind and resolve.

See CORBA COS Naming Specification.

Constructor Summary

Constructors

Constructor and Description
NamingContextExtPOATie(NamingContextExtOperations delegate)
NamingContextExtPOATie(NamingContextExtOperations delegate, POA poa)

Method Summary

Modifier and Type	Method and Description
POA	_default_POA() Returns the root POA from the ORB instance associated with the servant.
NamingContextExtOperations	_delegate()
void	_delegate(NamingContextExtOperations delegate)
void	bind_context(NameComponent[] n, NamingContext nc) Names an object that is a naming context.
NamingContext	bind_new_context(NameComponent[] n) This operation creates a new context and binds it to the name supplied as an argument.
void	bind(NameComponent[] n, Object obj) Creates a binding of a name and an object in the naming context.
void	destroy() The destroy operation deletes a naming context.
void	list(int how_many, BindingListHolder bl, BindingIteratorHolder bi) The list operation allows a client to iterate through a set of bindings in a naming context.
NamingContext	new_context() This operation returns a naming context implemented by the same naming server as the context on which the operation was invoked.
void	rebind_context(NameComponent[] n, NamingContext nc) Creates a binding of a name and a naming context in the naming context even if the name is already bound in the context.
void	rebind(NameComponent[] n, Object obj) Creates a binding of a name and an object in the naming context even if the name is already bound in the context.
Object	resolve_str(String sn) This operation resolves the Stringified name into the object reference.
Object	resolve(NameComponent[] n) The resolve operation is the process of retrieving an object bound to a name in a given context.
NameComponent[]	to_name(String sn) This operation converts a Stringified Name into an equivalent array of Name Components.
String	to_string(NameComponent[] n) This operation creates a stringified name from the array of Name components.
String	to_url(String addr, String sn) This operation creates a URL based "iiopname://" format name from the Stringified Name of the object.
void	unbind(NameComponent[] n) The unbind operation removes a name binding from a context.

Methods inherited from class org.omg.CosNaming.NamingContextExtPOA

_all_interfaces, _invoke, _this, _this

Methods inherited from class org.omg.PortableServer.Servant

_get_delegate, _get_interface_def, _is_a, _non_existent, _object_id, _orb, _poa, _set_delegate, _this_object, _this_object

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NamingContextExtPOATie

public NamingContextExtPOATie(NamingContextExtOperations delegate)

NamingContextExtPOATie

public NamingContextExtPOATie(NamingContextExtOperations delegate,
                              POA poa)

Method Detail

_delegate

public NamingContextExtOperations _delegate()

_delegate

public void _delegate(NamingContextExtOperations delegate)

_default_POA

public POA _default_POA()

Description copied from class: Servant

Returns the root POA from the ORB instance associated with the servant. Subclasses may override this method to return a different POA.

Overrides:

_default_POA in class Servant

Returns:

default_POA the POA associated with the Servant.

to_string

public String to_string(NameComponent[] n)
                 throws InvalidName

This operation creates a stringified name from the array of Name components.

Parameters:

n - Name of the object

Throws:

org.omg.CosNaming.NamingContextExtPackage.InvalidName - Indicates the name does not identify a binding.

InvalidName

to_name

public NameComponent[] to_name(String sn)
                        throws InvalidName

This operation converts a Stringified Name into an equivalent array of Name Components.

Parameters:

sn - Stringified Name of the object

Throws:

org.omg.CosNaming.NamingContextExtPackage.InvalidName - Indicates the name does not identify a binding.

InvalidName

to_url

public String to_url(String addr,
                     String sn)
              throws InvalidAddress,
                     InvalidName

This operation creates a URL based "iiopname://" format name from the Stringified Name of the object.

Parameters:

addr - internet based address of the host machine where Name Service is running

sn - Stringified Name of the object

Throws:

org.omg.CosNaming.NamingContextExtPackage.InvalidName - Indicates the name does not identify a binding.

org.omg.CosNaming.NamingContextPackage.InvalidAddress - Indicates the internet based address of the host machine is incorrect

InvalidAddress

InvalidName

resolve_str

public Object resolve_str(String sn)
                   throws NotFound,
                          CannotProceed,
                          InvalidName

This operation resolves the Stringified name into the object reference.

Parameters:

sn - Stringified Name of the object

Throws:

NotFound - Indicates there is no object reference for the given name.

CannotProceed - Indicates that the given compound name is incorrect

org.omg.CosNaming.NamingContextExtPackage.InvalidName - Indicates the name does not identify a binding.

InvalidName

bind

public void bind(NameComponent[] n,
                 Object obj)
          throws NotFound,
                 CannotProceed,
                 InvalidName,
                 AlreadyBound

Creates a binding of a name and an object in the naming context. Naming contexts that are bound using bind do not participate in name resolution when compound names are passed to be resolved.

Parameters:

n - Name of the object

obj - The Object to bind with the given name

Throws:

NotFound - Indicates the name does not identify a binding.

CannotProceed - Indicates that the implementation has given up for some reason. The client, however, may be able to continue the operation at the returned naming context.

InvalidName - Indicates that the name is invalid.

AlreadyBound - Indicates an object is already bound to the specified name.

bind_context

public void bind_context(NameComponent[] n,
                         NamingContext nc)
                  throws NotFound,
                         CannotProceed,
                         InvalidName,
                         AlreadyBound

Names an object that is a naming context. Naming contexts that are bound using bind_context() participate in name resolution when compound names are passed to be resolved.

Parameters:

n - Name of the object

nc - NamingContect object to bind with the given name

Throws:

NotFound - Indicates the name does not identify a binding.

CannotProceed - Indicates that the implementation has given up for some reason. The client, however, may be able to continue the operation at the returned naming context.

InvalidName - Indicates that the name is invalid.

AlreadyBound - Indicates an object is already bound to the specified name.

rebind

public void rebind(NameComponent[] n,
                   Object obj)
            throws NotFound,
                   CannotProceed,
                   InvalidName

Creates a binding of a name and an object in the naming context even if the name is already bound in the context. Naming contexts that are bound using rebind do not participate in name resolution when compound names are passed to be resolved.

Parameters:

n - Name of the object

obj - The Object to rebind with the given name

Throws:

NotFound - Indicates the name does not identify a binding.

CannotProceed - Indicates that the implementation has given up for some reason. The client, however, may be able to continue the operation at the returned naming context.

InvalidName - Indicates that the name is invalid.

rebind_context

public void rebind_context(NameComponent[] n,
                           NamingContext nc)
                    throws NotFound,
                           CannotProceed,
                           InvalidName

Creates a binding of a name and a naming context in the naming context even if the name is already bound in the context. Naming contexts that are bound using rebind_context() participate in name resolution when compound names are passed to be resolved.

Parameters:

n - Name of the object

nc - NamingContect object to rebind with the given name

Throws:

NotFound - Indicates the name does not identify a binding.

CannotProceed - Indicates that the implementation has given up for some reason. The client, however, may be able to continue the operation at the returned naming context.

InvalidName - Indicates that the name is invalid.

resolve

public Object resolve(NameComponent[] n)
               throws NotFound,
                      CannotProceed,
                      InvalidName

The resolve operation is the process of retrieving an object bound to a name in a given context. The given name must exactly match the bound name. The naming service does not return the type of the object. Clients are responsible for "narrowing" the object to the appropriate type. That is, clients typically cast the returned object from Object to a more specialized interface.

Parameters:

n - Name of the object

Throws:

NotFound - Indicates the name does not identify a binding.

CannotProceed - Indicates that the implementation has given up for some reason. The client, however, may be able to continue the operation at the returned naming context.

InvalidName - Indicates that the name is invalid.

unbind

public void unbind(NameComponent[] n)
            throws NotFound,
                   CannotProceed,
                   InvalidName

The unbind operation removes a name binding from a context.

Parameters:

n - Name of the object

Throws:

NotFound - Indicates the name does not identify a binding.

CannotProceed - Indicates that the implementation has given up for some reason. The client, however, may be able to continue the operation at the returned naming context.

InvalidName - Indicates that the name is invalid.

list

public void list(int how_many,
                 BindingListHolder bl,
                 BindingIteratorHolder bi)

The list operation allows a client to iterate through a set of bindings in a naming context.

The list operation returns at most the requested number of bindings in BindingList bl.

• If the naming context contains additional bindings, the list operation returns a BindingIterator with the additional bindings.
• If the naming context does not contain additional bindings, the binding iterator is a nil object reference.

Parameters:

how_many - the maximum number of bindings to return

bl - the returned list of bindings

bi - the returned binding iterator

new_context

public NamingContext new_context()

This operation returns a naming context implemented by the same naming server as the context on which the operation was invoked. The new context is not bound to any name.

bind_new_context

public NamingContext bind_new_context(NameComponent[] n)
                               throws NotFound,
                                      AlreadyBound,
                                      CannotProceed,
                                      InvalidName

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 naming server as the context in which it was bound (that is, the naming server that implements the context denoted by the name argument excluding the last component).

Parameters:

n - Name of the object

Throws:

NotFound - Indicates the name does not identify a binding.

AlreadyBound - Indicates an object is already bound to the specified name.

CannotProceed - Indicates that the implementation has given up for some reason. The client, however, may be able to continue the operation at the returned naming context.

InvalidName - Indicates that the name is invalid.

destroy

public void destroy()
             throws NotEmpty

The destroy operation deletes a naming context. If the naming context contains bindings, the NotEmpty exception is raised.

Throws:

NotEmpty - Indicates that the Naming Context contains bindings.