Class NamingContext
- java.lang.Object
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- org.apache.naming.NamingContext
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- All Implemented Interfaces:
javax.naming.Context
public class NamingContext extends java.lang.Object implements javax.naming.Context
Catalina JNDI Context implementation.- Author:
- Remy Maucherat
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Field Summary
Fields Modifier and Type Field Description protected java.util.HashMap<java.lang.String,NamingEntry>
bindings
Bindings in this Context.protected java.util.Hashtable<java.lang.String,java.lang.Object>
env
Environment.protected java.lang.String
name
Name of the associated Catalina Context.protected static javax.naming.NameParser
nameParser
Name parser for this context.protected static StringManager
sm
The string manager for this package.
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Constructor Summary
Constructors Constructor Description NamingContext(java.util.Hashtable<java.lang.String,java.lang.Object> env, java.lang.String name)
Builds a naming context.NamingContext(java.util.Hashtable<java.lang.String,java.lang.Object> env, java.lang.String name, java.util.HashMap<java.lang.String,NamingEntry> bindings)
Builds a naming context.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Object
addToEnvironment(java.lang.String propName, java.lang.Object propVal)
Adds a new environment property to the environment of this context.void
bind(java.lang.String name, java.lang.Object obj)
Binds a name to an object.void
bind(javax.naming.Name name, java.lang.Object obj)
Binds a name to an object.protected void
bind(javax.naming.Name name, java.lang.Object obj, boolean rebind)
Binds a name to an object.protected boolean
checkWritable()
Throws a naming exception is Context is not writable.void
close()
Closes this context.java.lang.String
composeName(java.lang.String name, java.lang.String prefix)
Composes the name of this context with a name relative to this context.javax.naming.Name
composeName(javax.naming.Name name, javax.naming.Name prefix)
Composes the name of this context with a name relative to this context.javax.naming.Context
createSubcontext(java.lang.String name)
Creates and binds a new context.javax.naming.Context
createSubcontext(javax.naming.Name name)
Creates and binds a new context.void
destroySubcontext(java.lang.String name)
Destroys the named context and removes it from the namespace.void
destroySubcontext(javax.naming.Name name)
Destroys the named context and removes it from the namespace.java.util.Hashtable<?,?>
getEnvironment()
Retrieves the environment in effect for this context.boolean
getExceptionOnFailedWrite()
java.lang.String
getNameInNamespace()
Retrieves the full name of this context within its own namespace.javax.naming.NameParser
getNameParser(java.lang.String name)
Retrieves the parser associated with the named context.javax.naming.NameParser
getNameParser(javax.naming.Name name)
Retrieves the parser associated with the named context.protected boolean
isWritable()
javax.naming.NamingEnumeration<javax.naming.NameClassPair>
list(java.lang.String name)
Enumerates the names bound in the named context, along with the class names of objects bound to them.javax.naming.NamingEnumeration<javax.naming.NameClassPair>
list(javax.naming.Name name)
Enumerates the names bound in the named context, along with the class names of objects bound to them.javax.naming.NamingEnumeration<javax.naming.Binding>
listBindings(java.lang.String name)
Enumerates the names bound in the named context, along with the objects bound to them.javax.naming.NamingEnumeration<javax.naming.Binding>
listBindings(javax.naming.Name name)
Enumerates the names bound in the named context, along with the objects bound to them.java.lang.Object
lookup(java.lang.String name)
Retrieves the named object.java.lang.Object
lookup(javax.naming.Name name)
Retrieves the named object.protected java.lang.Object
lookup(javax.naming.Name name, boolean resolveLinks)
Retrieves the named object.java.lang.Object
lookupLink(java.lang.String name)
Retrieves the named object, following links except for the terminal atomic component of the name.java.lang.Object
lookupLink(javax.naming.Name name)
Retrieves the named object, following links except for the terminal atomic component of the name.void
rebind(java.lang.String name, java.lang.Object obj)
Binds a name to an object, overwriting any existing binding.void
rebind(javax.naming.Name name, java.lang.Object obj)
Binds a name to an object, overwriting any existing binding.java.lang.Object
removeFromEnvironment(java.lang.String propName)
Removes an environment property from the environment of this context.void
rename(java.lang.String oldName, java.lang.String newName)
Binds a new name to the object bound to an old name, and unbinds the old name.void
rename(javax.naming.Name oldName, javax.naming.Name newName)
Binds a new name to the object bound to an old name, and unbinds the old name.void
setExceptionOnFailedWrite(boolean exceptionOnFailedWrite)
void
unbind(java.lang.String name)
Unbinds the named object.void
unbind(javax.naming.Name name)
Unbinds the named object.
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Field Detail
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nameParser
protected static final javax.naming.NameParser nameParser
Name parser for this context.
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env
protected final java.util.Hashtable<java.lang.String,java.lang.Object> env
Environment.
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sm
protected static final StringManager sm
The string manager for this package.
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bindings
protected final java.util.HashMap<java.lang.String,NamingEntry> bindings
Bindings in this Context.
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name
protected final java.lang.String name
Name of the associated Catalina Context.
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Constructor Detail
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NamingContext
public NamingContext(java.util.Hashtable<java.lang.String,java.lang.Object> env, java.lang.String name)
Builds a naming context.- Parameters:
env
- The environment to use to construct the naming contextname
- The name of the associated Catalina Context
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NamingContext
public NamingContext(java.util.Hashtable<java.lang.String,java.lang.Object> env, java.lang.String name, java.util.HashMap<java.lang.String,NamingEntry> bindings)
Builds a naming context.- Parameters:
env
- The environment to use to construct the naming contextname
- The name of the associated Catalina Contextbindings
- The initial bindings for the naming context
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Method Detail
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getExceptionOnFailedWrite
public boolean getExceptionOnFailedWrite()
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setExceptionOnFailedWrite
public void setExceptionOnFailedWrite(boolean exceptionOnFailedWrite)
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lookup
public java.lang.Object lookup(javax.naming.Name name) throws javax.naming.NamingException
Retrieves the named object. If name is empty, returns a new instance of this context (which represents the same naming context as this context, but its environment may be modified independently and it may be accessed concurrently).- Specified by:
lookup
in interfacejavax.naming.Context
- Parameters:
name
- the name of the object to look up- Returns:
- the object bound to name
- Throws:
javax.naming.NamingException
- if a naming exception is encountered
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lookup
public java.lang.Object lookup(java.lang.String name) throws javax.naming.NamingException
Retrieves the named object.- Specified by:
lookup
in interfacejavax.naming.Context
- Parameters:
name
- the name of the object to look up- Returns:
- the object bound to name
- Throws:
javax.naming.NamingException
- if a naming exception is encountered
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bind
public void bind(javax.naming.Name name, java.lang.Object obj) throws javax.naming.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 interfacejavax.naming.Context
- Parameters:
name
- the name to bind; may not be emptyobj
- the object to bind; possibly null- Throws:
javax.naming.NameAlreadyBoundException
- if name is already boundjavax.naming.directory.InvalidAttributesException
- if object did not supply all mandatory attributesjavax.naming.NamingException
- if a naming exception is encountered
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bind
public void bind(java.lang.String name, java.lang.Object obj) throws javax.naming.NamingException
Binds a name to an object.- Specified by:
bind
in interfacejavax.naming.Context
- Parameters:
name
- the name to bind; may not be emptyobj
- the object to bind; possibly null- Throws:
javax.naming.NameAlreadyBoundException
- if name is already boundjavax.naming.directory.InvalidAttributesException
- if object did not supply all mandatory attributesjavax.naming.NamingException
- if a naming exception is encountered
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rebind
public void rebind(javax.naming.Name name, java.lang.Object obj) throws javax.naming.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 interfacejavax.naming.Context
- Parameters:
name
- the name to bind; may not be emptyobj
- the object to bind; possibly null- Throws:
javax.naming.directory.InvalidAttributesException
- if object did not supply all mandatory attributesjavax.naming.NamingException
- if a naming exception is encountered
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rebind
public void rebind(java.lang.String name, java.lang.Object obj) throws javax.naming.NamingException
Binds a name to an object, overwriting any existing binding.- Specified by:
rebind
in interfacejavax.naming.Context
- Parameters:
name
- the name to bind; may not be emptyobj
- the object to bind; possibly null- Throws:
javax.naming.directory.InvalidAttributesException
- if object did not supply all mandatory attributesjavax.naming.NamingException
- if a naming exception is encountered
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unbind
public void unbind(javax.naming.Name name) throws javax.naming.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.
- Specified by:
unbind
in interfacejavax.naming.Context
- Parameters:
name
- the name to bind; may not be empty- Throws:
javax.naming.NameNotFoundException
- if an intermediate context does not existjavax.naming.NamingException
- if a naming exception is encountered
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unbind
public void unbind(java.lang.String name) throws javax.naming.NamingException
Unbinds the named object.- Specified by:
unbind
in interfacejavax.naming.Context
- Parameters:
name
- the name to bind; may not be empty- Throws:
javax.naming.NameNotFoundException
- if an intermediate context does not existjavax.naming.NamingException
- if a naming exception is encountered
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rename
public void rename(javax.naming.Name oldName, javax.naming.Name newName) throws javax.naming.NamingException
Binds a new name to the object bound to an old name, and unbinds the old name. Both names are relative to this context. Any attributes associated with the old name become associated with the new name. Intermediate contexts of the old name are not changed.- Specified by:
rename
in interfacejavax.naming.Context
- Parameters:
oldName
- the name of the existing binding; may not be emptynewName
- the name of the new binding; may not be empty- Throws:
javax.naming.NameAlreadyBoundException
- if newName is already boundjavax.naming.NamingException
- if a naming exception is encountered
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rename
public void rename(java.lang.String oldName, java.lang.String newName) throws javax.naming.NamingException
Binds a new name to the object bound to an old name, and unbinds the old name.- Specified by:
rename
in interfacejavax.naming.Context
- Parameters:
oldName
- the name of the existing binding; may not be emptynewName
- the name of the new binding; may not be empty- Throws:
javax.naming.NameAlreadyBoundException
- if newName is already boundjavax.naming.NamingException
- if a naming exception is encountered
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list
public javax.naming.NamingEnumeration<javax.naming.NameClassPair> list(javax.naming.Name name) throws javax.naming.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 interfacejavax.naming.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:
javax.naming.NamingException
- if a naming exception is encountered
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list
public javax.naming.NamingEnumeration<javax.naming.NameClassPair> list(java.lang.String name) throws javax.naming.NamingException
Enumerates the names bound in the named context, along with the class names of objects bound to them.- Specified by:
list
in interfacejavax.naming.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:
javax.naming.NamingException
- if a naming exception is encountered
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listBindings
public javax.naming.NamingEnumeration<javax.naming.Binding> listBindings(javax.naming.Name name) throws javax.naming.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 interfacejavax.naming.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:
javax.naming.NamingException
- if a naming exception is encountered
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listBindings
public javax.naming.NamingEnumeration<javax.naming.Binding> listBindings(java.lang.String name) throws javax.naming.NamingException
Enumerates the names bound in the named context, along with the objects bound to them.- Specified by:
listBindings
in interfacejavax.naming.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:
javax.naming.NamingException
- if a naming exception is encountered
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destroySubcontext
public void destroySubcontext(javax.naming.Name name) throws javax.naming.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 interfacejavax.naming.Context
- Parameters:
name
- the name of the context to be destroyed; may not be empty- Throws:
javax.naming.NameNotFoundException
- if an intermediate context does not existjavax.naming.NotContextException
- if the name is bound but does not name a context, or does not name a context of the appropriate typejavax.naming.NamingException
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destroySubcontext
public void destroySubcontext(java.lang.String name) throws javax.naming.NamingException
Destroys the named context and removes it from the namespace.- Specified by:
destroySubcontext
in interfacejavax.naming.Context
- Parameters:
name
- the name of the context to be destroyed; may not be empty- Throws:
javax.naming.NameNotFoundException
- if an intermediate context does not existjavax.naming.NotContextException
- if the name is bound but does not name a context, or does not name a context of the appropriate typejavax.naming.NamingException
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createSubcontext
public javax.naming.Context createSubcontext(javax.naming.Name name) throws javax.naming.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 interfacejavax.naming.Context
- Parameters:
name
- the name of the context to create; may not be empty- Returns:
- the newly created context
- Throws:
javax.naming.NameAlreadyBoundException
- if name is already boundjavax.naming.directory.InvalidAttributesException
- if creation of the sub-context requires specification of mandatory attributesjavax.naming.NamingException
- if a naming exception is encountered
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createSubcontext
public javax.naming.Context createSubcontext(java.lang.String name) throws javax.naming.NamingException
Creates and binds a new context.- Specified by:
createSubcontext
in interfacejavax.naming.Context
- Parameters:
name
- the name of the context to create; may not be empty- Returns:
- the newly created context
- Throws:
javax.naming.NameAlreadyBoundException
- if name is already boundjavax.naming.directory.InvalidAttributesException
- if creation of the sub-context requires specification of mandatory attributesjavax.naming.NamingException
- if a naming exception is encountered
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lookupLink
public java.lang.Object lookupLink(javax.naming.Name name) throws javax.naming.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 interfacejavax.naming.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:
javax.naming.NamingException
- if a naming exception is encountered
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lookupLink
public java.lang.Object lookupLink(java.lang.String name) throws javax.naming.NamingException
Retrieves the named object, following links except for the terminal atomic component of the name.- Specified by:
lookupLink
in interfacejavax.naming.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:
javax.naming.NamingException
- if a naming exception is encountered
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getNameParser
public javax.naming.NameParser getNameParser(javax.naming.Name name) throws javax.naming.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 interfacejavax.naming.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:
javax.naming.NamingException
- if a naming exception is encountered
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getNameParser
public javax.naming.NameParser getNameParser(java.lang.String name) throws javax.naming.NamingException
Retrieves the parser associated with the named context.- Specified by:
getNameParser
in interfacejavax.naming.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:
javax.naming.NamingException
- if a naming exception is encountered
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composeName
public javax.naming.Name composeName(javax.naming.Name name, javax.naming.Name prefix) throws javax.naming.NamingException
Composes the name of this context with a name relative to this context.Given a name (name) relative to this context, and the name (prefix) of this context relative to one of its ancestors, this method returns the composition of the two names using the syntax appropriate for the naming system(s) involved. That is, if name names an object relative to this context, the result is the name of the same object, but relative to the ancestor context. None of the names may be null.
- Specified by:
composeName
in interfacejavax.naming.Context
- Parameters:
name
- a name relative to this contextprefix
- the name of this context relative to one of its ancestors- Returns:
- the composition of prefix and name
- Throws:
javax.naming.NamingException
- if a naming exception is encountered
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composeName
public java.lang.String composeName(java.lang.String name, java.lang.String prefix)
Composes the name of this context with a name relative to this context.- Specified by:
composeName
in interfacejavax.naming.Context
- Parameters:
name
- a name relative to this contextprefix
- the name of this context relative to one of its ancestors- Returns:
- the composition of prefix and name
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addToEnvironment
public java.lang.Object addToEnvironment(java.lang.String propName, java.lang.Object propVal)
Adds a new environment property to the environment of this context. If the property already exists, its value is overwritten.- Specified by:
addToEnvironment
in interfacejavax.naming.Context
- Parameters:
propName
- the name of the environment property to add; may not be nullpropVal
- the value of the property to add; may not be null
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removeFromEnvironment
public java.lang.Object removeFromEnvironment(java.lang.String propName)
Removes an environment property from the environment of this context.- Specified by:
removeFromEnvironment
in interfacejavax.naming.Context
- Parameters:
propName
- the name of the environment property to remove; may not be null
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getEnvironment
public java.util.Hashtable<?,?> getEnvironment()
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 interfacejavax.naming.Context
- Returns:
- the environment of this context; never null
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close
public void close() throws javax.naming.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 interfacejavax.naming.Context
- Throws:
javax.naming.NamingException
- if a naming exception is encountered
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getNameInNamespace
public java.lang.String getNameInNamespace() throws javax.naming.NamingException
Retrieves the full name of this context within its own namespace.Many naming services have a notion of a "full name" for objects in their respective namespaces. For example, an LDAP entry has a distinguished name, and a DNS record has a fully qualified name. This method allows the client application to retrieve this name. The string returned by this method is not a JNDI composite name and should not be passed directly to context methods. In naming systems for which the notion of full name does not make sense, OperationNotSupportedException is thrown.
- Specified by:
getNameInNamespace
in interfacejavax.naming.Context
- Returns:
- this context's name in its own namespace; never null
- Throws:
javax.naming.OperationNotSupportedException
- if the naming system does not have the notion of a full namejavax.naming.NamingException
- if a naming exception is encountered
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lookup
protected java.lang.Object lookup(javax.naming.Name name, boolean resolveLinks) throws javax.naming.NamingException
Retrieves the named object.- Parameters:
name
- the name of the object to look upresolveLinks
- If true, the links will be resolved- Returns:
- the object bound to name
- Throws:
javax.naming.NamingException
- if a naming exception is encountered
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bind
protected void bind(javax.naming.Name name, java.lang.Object obj, boolean rebind) throws javax.naming.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.- Parameters:
name
- the name to bind; may not be emptyobj
- the object to bind; possibly nullrebind
- if true, then perform a rebind (ie, overwrite)- Throws:
javax.naming.NameAlreadyBoundException
- if name is already boundjavax.naming.directory.InvalidAttributesException
- if object did not supply all mandatory attributesjavax.naming.NamingException
- if a naming exception is encountered
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isWritable
protected boolean isWritable()
- Returns:
true
if writing is allowed on this context.
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checkWritable
protected boolean checkWritable() throws javax.naming.NamingException
Throws a naming exception is Context is not writable.- Returns:
true
if the Context is writable- Throws:
javax.naming.NamingException
- if the Context is not writable andexceptionOnFailedWrite
istrue
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