org.ow2.jonas.lib.naming.java
Class javaURLContext

java.lang.Object
  org.ow2.jonas.lib.naming.java.javaURLContext

All Implemented Interfaces:

Context

public class javaURLContext
extends Object
implements Context

Context implementation for the java: namespace. Package must be named .../java (See Initial Context) Most operations consist of retrieving the actual ComponentContext and sending it the operation for processing.

Author:

Philippe Durieux Contributor(s): Philippe Coq Monolog

Field Summary

Fields inherited from interface javax.naming.Context

APPLET, AUTHORITATIVE, BATCHSIZE, DNS_URL, INITIAL_CONTEXT_FACTORY, LANGUAGE, OBJECT_FACTORIES, PROVIDER_URL, REFERRAL, SECURITY_AUTHENTICATION, SECURITY_CREDENTIALS, SECURITY_PRINCIPAL, SECURITY_PROTOCOL, STATE_FACTORIES, URL_PKG_PREFIXES

Constructor Summary

javaURLContext(Hashtable env)
Constructor

Method Summary

Object	addToEnvironment(String propName, Object propVal) Adds a new environment property to the environment of this context.
void	bind(Name name, Object obj) Binds a name to an object.
void	bind(String name, Object obj) Binds a name to an object.
void	close() Closes this context.
Name	composeName(Name name, Name prefix) Composes the name of this context with a name relative to this context.
String	composeName(String name, String prefix) Composes the name of this context with a name relative to this context.
Context	createSubcontext(Name name) Creates and binds a new context.
Context	createSubcontext(String name) Creates and binds a new context.
void	destroySubcontext(Name name) Destroys the named context and removes it from the namespace.
void	destroySubcontext(String name) Destroys the named context and removes it from the namespace.
Hashtable	getEnvironment() Retrieves the environment in effect for this context.
String	getNameInNamespace() Retrieves the full name of this context within its own namespace.
NameParser	getNameParser(Name name) Retrieves the parser associated with the named context.
NameParser	getNameParser(String name) Retrieves the parser associated with the named context.
NamingEnumeration	list(Name name) Enumerates the names bound in the named context, along with the class names of objects bound to them.
NamingEnumeration	list(String name) Enumerates the names bound in the named context, along with the class names of objects bound to them.
NamingEnumeration	listBindings(Name name) Enumerates the names bound in the named context, along with the objects bound to them.
NamingEnumeration	listBindings(String name) Enumerates the names bound in the named context, along with the objects bound to them.
Object	lookup(Name name) Retrieves the named object.
Object	lookup(String name) Retrieves the named object.
Object	lookupLink(Name name) Retrieves the named object, following links except for the terminal atomic component of the name.
Object	lookupLink(String name) Retrieves the named object, following links except for the terminal atomic component of the name.
void	rebind(Name name, Object obj) Binds a name to an object, overwriting any existing binding.
void	rebind(String name, Object obj) Binds a name to an object, overwriting any existing binding.
Object	removeFromEnvironment(String propName) Removes an environment property from the environment of this context.
void	rename(Name oldName, Name newName) Binds a new name to the object bound to an old name, and unbinds the old name.
void	rename(String oldName, String newName) Binds a new name to the object bound to an old name, and unbinds the old name.
void	unbind(Name name) Unbinds the named object.
void	unbind(String name) Unbinds the named object.

Methods inherited from class java.lang.Object

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

Constructor Detail

javaURLContext

public javaURLContext(Hashtable env)
               throws NamingException

Constructor

Parameters:

env - the environment (not used)

Throws:

NamingException - Never thrown.

Method Detail

lookup

public Object lookup(Name name)
              throws NamingException

Retrieves the named object.

Specified by:

lookup in interface Context

Parameters:

name - the name of the object to look up

Returns:

the object bound to name

Throws:

NamingException - if a naming exception is encountered

lookup

public Object lookup(String name)
              throws NamingException

Retrieves the named object.

Specified by:

lookup in interface Context

Parameters:

name - the name of the object to look up

Returns:

the object bound to name

Throws:

NamingException - if a naming exception is encountered

bind

public void bind(Name name,
                 Object obj)
          throws NamingException

Binds a name to an object.

Specified by:

bind in interface Context

Parameters:

name - the name to bind; may not be empty

obj - the object to bind; possibly null

Throws:

NameAlreadyBoundException - if name is already bound

javax.naming.directory.InvalidAttributesException - if object did not supply all mandatory attributes

NamingException - if a naming exception is encountered

See Also:

bind(String, Object), rebind(Name, Object), DirContext

bind

public void bind(String name,
                 Object obj)
          throws NamingException

Binds a name to an object. All intermediate contexts and the target context (that named by all but terminal atomic component of the name) must already exist.

Specified by:

bind in interface Context

Parameters:

name - the name to bind; may not be empty

obj - the object to bind; possibly null

Throws:

NameAlreadyBoundException - if name is already bound

javax.naming.directory.InvalidAttributesException - if object did not supply all mandatory attributes

NamingException - if a naming exception is encountered

rebind

public void rebind(Name name,
                   Object obj)
            throws NamingException

Binds a name to an object, overwriting any existing binding. All intermediate contexts and the target context (that named by all but terminal atomic component of the name) must already exist. If the object is a DirContext, any existing attributes associated with the name are replaced with those of the object. Otherwise, any existing attributes associated with the name remain unchanged.

Specified by:

rebind in interface Context

Parameters:

name - the name to bind; may not be empty

obj - the object to bind; possibly null

Throws:

javax.naming.directory.InvalidAttributesException - if object did not supply all mandatory attributes

NamingException - if a naming exception is encountered

rebind

public void rebind(String name,
                   Object obj)
            throws NamingException

Binds a name to an object, overwriting any existing binding. See rebind(Name, Object) for details.

Specified by:

rebind in interface Context

Parameters:

name - the name to bind; may not be empty

obj - the object to bind; possibly null

Throws:

javax.naming.directory.InvalidAttributesException - if object did not supply all mandatory attributes

NamingException - if a naming exception is encountered

unbind

public void unbind(Name name)
            throws NamingException

Unbinds the named object. Removes the terminal atomic name in name from the target context--that named by all but the terminal atomic part of name. This method is idempotent. It succeeds even if the terminal atomic name is not bound in the target context, but throws NameNotFoundException if any of the intermediate contexts do not exist. Any attributes associated with the name are removed. Intermediate contexts are not changed.

Specified by:

unbind in interface Context

Parameters:

name - the name to unbind; may not be empty

Throws:

NameNotFoundException - if an intermediate context does not exist

NamingException - if a naming exception is encountered

See Also:

unbind(String)

unbind

public void unbind(String name)
            throws NamingException

Unbinds the named object. See unbind(Name) for details.

Specified by:

unbind in interface Context

Parameters:

name - the name to unbind; may not be empty

Throws:

NameNotFoundException - if an intermediate context does not exist

NamingException - if a naming exception is encountered

rename

public void rename(Name oldName,
                   Name newName)
            throws NamingException

Binds a new name to the object bound to an old name, and unbinds the old name. This operation is not supported (read only env.)

Specified by:

rename in interface Context

Parameters:

oldName - the name of the existing binding; may not be empty

newName - the name of the new binding; may not be empty

Throws:

NamingException - if a naming exception is encountered

rename

public void rename(String oldName,
                   String newName)
            throws NamingException

Binds a new name to the object bound to an old name, and unbinds the old name. Not supported.

Specified by:

rename in interface Context

Parameters:

oldName - the name of the existing binding; may not be empty

newName - the name of the new binding; may not be empty

Throws:

NamingException - if a naming exception is encountered

list

public NamingEnumeration list(Name name)
                       throws NamingException

Enumerates the names bound in the named context, along with the class names of objects bound to them. The contents of any subcontexts are not included. If a binding is added to or removed from this context, its effect on an enumeration previously returned is undefined.

Specified by:

list in interface Context

Parameters:

name - the name of the context to list

Returns:

an enumeration of the names and class names of the bindings in this context. Each element of the enumeration is of type NameClassPair.

Throws:

NamingException - if a naming exception is encountered

See Also:

list(String), listBindings(Name), NameClassPair

list

public NamingEnumeration list(String name)
                       throws NamingException

Enumerates the names bound in the named context, along with the class names of objects bound to them. See list(Name) for details.

Specified by:

list in interface Context

Parameters:

name - the name of the context to list

Returns:

an enumeration of the names and class names of the bindings in this context. Each element of the enumeration is of type NameClassPair.

Throws:

NamingException - if a naming exception is encountered

listBindings

public NamingEnumeration listBindings(Name name)
                               throws NamingException

Enumerates the names bound in the named context, along with the objects bound to them. The contents of any subcontexts are not included. If a binding is added to or removed from this context, its effect on an enumeration previously returned is undefined.

Specified by:

listBindings in interface Context

Parameters:

name - the name of the context to list

Returns:

an enumeration of the bindings in this context. Each element of the enumeration is of type Binding.

Throws:

NamingException - if a naming exception is encountered

See Also:

listBindings(String), list(Name), Binding

listBindings

public NamingEnumeration listBindings(String name)
                               throws NamingException

Enumerates the names bound in the named context, along with the objects bound to them. See listBindings(Name) for details.

Specified by:

listBindings in interface Context

Parameters:

name - the name of the context to list

Returns:

an enumeration of the bindings in this context. Each element of the enumeration is of type Binding.

Throws:

NamingException - if a naming exception is encountered

destroySubcontext

public void destroySubcontext(Name name)
                       throws NamingException

Destroys the named context and removes it from the namespace. Any attributes associated with the name are also removed. Intermediate contexts are not destroyed. This method is idempotent. It succeeds even if the terminal atomic name is not bound in the target context, but throws NameNotFoundException if any of the intermediate contexts do not exist. In a federated naming system, a context from one naming system may be bound to a name in another. One can subsequently look up and perform operations on the foreign context using a composite name. However, an attempt destroy the context using this composite name will fail with NotContextException, because the foreign context is not a "subcontext" of the context in which it is bound. Instead, use unbind() to remove the binding of the foreign context. Destroying the foreign context requires that the destroySubcontext() be performed on a context from the foreign context's "native" naming system.

Specified by:

destroySubcontext in interface Context

Parameters:

name - the name of the context to be destroyed; may not be empty

Throws:

NameNotFoundException - if an intermediate context does not exist

NotContextException - if the name is bound but does not name a context, or does not name a context of the appropriate type

ContextNotEmptyException - if the named context is not empty

NamingException - if a naming exception is encountered

See Also:

destroySubcontext(String)

destroySubcontext

public void destroySubcontext(String name)
                       throws NamingException

Destroys the named context and removes it from the namespace. See destroySubcontext(Name) for details.

Specified by:

destroySubcontext in interface Context

Parameters:

name - the name of the context to be destroyed; may not be empty

Throws:

NameNotFoundException - if an intermediate context does not exist

NotContextException - if the name is bound but does not name a context, or does not name a context of the appropriate type

ContextNotEmptyException - if the named context is not empty

NamingException - if a naming exception is encountered

createSubcontext

public Context createSubcontext(Name name)
                         throws NamingException

Creates and binds a new context. Creates a new context with the given name and binds it in the target context (that named by all but terminal atomic component of the name). All intermediate contexts and the target context must already exist.

Specified by:

createSubcontext in interface Context

Parameters:

name - the name of the context to create; may not be empty

Returns:

the newly created context

Throws:

NameAlreadyBoundException - if name is already bound

javax.naming.directory.InvalidAttributesException - if creation of the subcontext requires specification of mandatory attributes

NamingException - if a naming exception is encountered

See Also:

createSubcontext(String), DirContext

createSubcontext

public Context createSubcontext(String name)
                         throws NamingException

Creates and binds a new context. See createSubcontext(Name) for details.

Specified by:

createSubcontext in interface Context

Parameters:

name - the name of the context to create; may not be empty

Returns:

the newly created context

Throws:

NameAlreadyBoundException - if name is already bound

javax.naming.directory.InvalidAttributesException - if creation of the subcontext requires specification of mandatory attributes

NamingException - if a naming exception is encountered

lookupLink

public Object lookupLink(Name name)
                  throws NamingException

Retrieves the named object, following links except for the terminal atomic component of the name. If the object bound to name is not a link, returns the object itself.

Specified by:

lookupLink in interface Context

Parameters:

name - the name of the object to look up

Returns:

the object bound to name, not following the terminal link (if any).

Throws:

NamingException - if a naming exception is encountered

See Also:

lookupLink(String)

lookupLink

public Object lookupLink(String name)
                  throws NamingException

Retrieves the named object, following links except for the terminal atomic component of the name. See lookupLink(Name) for details.

Specified by:

lookupLink in interface Context

Parameters:

name - the name of the object to look up

Returns:

the object bound to name, not following the terminal link (if any)

Throws:

NamingException - if a naming exception is encountered

getNameParser

public NameParser getNameParser(Name name)
                         throws NamingException

Retrieves the parser associated with the named context. In a federation of namespaces, different naming systems will parse names differently. This method allows an application to get a parser for parsing names into their atomic components using the naming convention of a particular naming system. Within any single naming system, NameParser objects returned by this method must be equal (using the equals() test).

Specified by:

getNameParser in interface Context

Parameters:

name - the name of the context from which to get the parser

Returns:

a name parser that can parse compound names into their atomic components

Throws:

NamingException - if a naming exception is encountered

See Also:

getNameParser(String), CompoundName

getNameParser

public NameParser getNameParser(String name)
                         throws NamingException

Retrieves the parser associated with the named context. See getNameParser(Name) for details.

Specified by:

getNameParser in interface Context

Parameters:

name - the name of the context from which to get the parser

Returns:

a name parser that can parse compound names into their atomic components

Throws:

NamingException - if a naming exception is encountered

composeName

public Name composeName(Name name,
                        Name prefix)
                 throws NamingException

Composes the name of this context with a name relative to this context.

Specified by:

composeName in interface Context

Parameters:

name - a name relative to this context

prefix - the name of this context relative to one of its ancestors

Returns:

the composition of prefix and name

Throws:

NamingException - if a naming exception is encountered

See Also:

composeName(String, String)

composeName

public String composeName(String name,
                          String prefix)
                   throws NamingException

Composes the name of this context with a name relative to this context.

Specified by:

composeName in interface Context

Parameters:

name - a name relative to this context

prefix - the name of this context relative to one of its ancestors

Returns:

the composition of prefix and name

Throws:

NamingException - if a naming exception is encountered

addToEnvironment

public Object addToEnvironment(String propName,
                               Object propVal)
                        throws NamingException

Adds a new environment property to the environment of this context. If the property already exists, its value is overwritten. See class description for more details on environment properties.

Specified by:

addToEnvironment in interface Context

Parameters:

propName - the name of the environment property to add; may not be null

propVal - the value of the property to add; may not be null

Returns:

the previous value of the property, or null if the property was not in the environment before

Throws:

NamingException - if a naming exception is encountered

See Also:

getEnvironment(), removeFromEnvironment(String)

removeFromEnvironment

public Object removeFromEnvironment(String propName)
                             throws NamingException

Removes an environment property from the environment of this context. See class description for more details on environment properties.

Specified by:

removeFromEnvironment in interface Context

Parameters:

propName - the name of the environment property to remove; may not be null

Returns:

the previous value of the property, or null if the property was not in the environment

Throws:

NamingException - if a naming exception is encountered

See Also:

getEnvironment(), addToEnvironment(String, Object)

getEnvironment

public Hashtable getEnvironment()
                         throws NamingException

Retrieves the environment in effect for this context. See class description for more details on environment properties. The caller should not make any changes to the object returned: their effect on the context is undefined. The environment of this context may be changed using addToEnvironment() and removeFromEnvironment().

Specified by:

getEnvironment in interface Context

Returns:

the environment of this context; never null

Throws:

NamingException - if a naming exception is encountered

See Also:

addToEnvironment(String, Object), removeFromEnvironment(String)

close

public void close()
           throws NamingException

Closes this context. This method releases this context's resources immediately, instead of waiting for them to be released automatically by the garbage collector. This method is idempotent: invoking it on a context that has already been closed has no effect. Invoking any other method on a closed context is not allowed, and results in undefined behaviour.

Specified by:

close in interface Context

Throws:

NamingException - if a naming exception is encountered

getNameInNamespace

public String getNameInNamespace()
                          throws NamingException

Retrieves the full name of this context within its own namespace.

Specified by:

getNameInNamespace in interface Context

Returns:

this context's name in its own namespace; never null

Throws:

OperationNotSupportedException - if the naming system does not have the notion of a full name

NamingException - if a naming exception is encountered