org.apache.commons.jxpath.ri
Class NamespaceResolver

java.lang.Object
  org.apache.commons.jxpath.ri.NamespaceResolver

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

public class NamespaceResolver
extends java.lang.Object
implements java.lang.Cloneable, java.io.Serializable

Namespace resolver for JXPathContextReferenceImpl.

Version:

$Revision: 668329 $ $Date: 2008-06-16 16:59:48 -0500 (Mon, 16 Jun 2008) $

Author:

Dmitri Plotnikov

See Also:

Serialized Form

Field Summary

protected java.util.HashMap	namespaceMap namespace map
protected NamespaceResolver	parent Parent NamespaceResolver
protected NodePointer	pointer pointer
protected java.util.HashMap	reverseMap reverse lookup map

Constructor Summary

NamespaceResolver()
Create a new NamespaceResolver.

NamespaceResolver(NamespaceResolver parent)
Create a new NamespaceResolver.

Method Summary

java.lang.Object	clone()
protected java.lang.String	getExternallyRegisteredNamespaceURI(java.lang.String prefix) Given a prefix, returns an externally registered namespace URI.
protected java.lang.String	getExternallyRegisteredPrefix(java.lang.String namespaceURI) Get the nearest prefix found that matches an externally-registered namespace.
Pointer	getNamespaceContextPointer() Get the namespace context pointer.
java.lang.String	getNamespaceURI(java.lang.String prefix) Given a prefix, returns a registered namespace URI.
protected static java.lang.String	getPrefix(NodePointer pointer, java.lang.String namespaceURI) Find the namespace prefix for the specified namespace URI and NodePointer.
java.lang.String	getPrefix(java.lang.String namespaceURI) Get the prefix associated with the specifed namespace URI.
boolean	isSealed() Learn whether this NamespaceResolver has been sealed.
void	registerNamespace(java.lang.String prefix, java.lang.String namespaceURI) Registers a namespace prefix.
void	seal() Seal this NamespaceResolver.
void	setNamespaceContextPointer(NodePointer pointer) Register a namespace for the expression context.

Methods inherited from class java.lang.Object

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

Field Detail

parent

protected final NamespaceResolver parent

Parent NamespaceResolver

namespaceMap

protected java.util.HashMap namespaceMap

namespace map

reverseMap

protected java.util.HashMap reverseMap

reverse lookup map

pointer

protected NodePointer pointer

pointer

Constructor Detail

NamespaceResolver

public NamespaceResolver()

Create a new NamespaceResolver.

NamespaceResolver

public NamespaceResolver(NamespaceResolver parent)

Create a new NamespaceResolver.

Parameters:

parent - NamespaceResolver

Method Detail

getPrefix

protected static java.lang.String getPrefix(NodePointer pointer,
                                            java.lang.String namespaceURI)

Find the namespace prefix for the specified namespace URI and NodePointer.

Parameters:

pointer - location

namespaceURI - to check

Returns:

prefix if found

Since:

JXPath 1.3

registerNamespace

public void registerNamespace(java.lang.String prefix,
                              java.lang.String namespaceURI)

Registers a namespace prefix.

Parameters:

prefix - A namespace prefix

namespaceURI - A URI for that prefix

setNamespaceContextPointer

public void setNamespaceContextPointer(NodePointer pointer)

Register a namespace for the expression context.

Parameters:

pointer - the Pointer to set.

getNamespaceContextPointer

public Pointer getNamespaceContextPointer()

Get the namespace context pointer.

Returns:

Pointer

getNamespaceURI

public java.lang.String getNamespaceURI(java.lang.String prefix)

Given a prefix, returns a registered namespace URI. If the requested prefix was not defined explicitly using the registerNamespace method, JXPathContext will then check the context node to see if the prefix is defined there. See setNamespaceContextPointer.

Parameters:

prefix - The namespace prefix to look up

Returns:

namespace URI or null if the prefix is undefined.

getExternallyRegisteredNamespaceURI

protected java.lang.String getExternallyRegisteredNamespaceURI(java.lang.String prefix)

Given a prefix, returns an externally registered namespace URI.

Parameters:

prefix - The namespace prefix to look up

Returns:

namespace URI or null if the prefix is undefined.

Since:

JXPath 1.3

getPrefix

public java.lang.String getPrefix(java.lang.String namespaceURI)

Get the prefix associated with the specifed namespace URI.

Parameters:

namespaceURI - the ns URI to check.

Returns:

String prefix

getExternallyRegisteredPrefix

protected java.lang.String getExternallyRegisteredPrefix(java.lang.String namespaceURI)

Get the nearest prefix found that matches an externally-registered namespace.

Parameters:

namespaceURI - the ns URI to check.

Returns:

String prefix if found.

Since:

JXPath 1.3

isSealed

public boolean isSealed()

Learn whether this NamespaceResolver has been sealed.

Returns:

boolean

seal

public void seal()

Seal this NamespaceResolver.

clone

public java.lang.Object clone()

Overrides:

clone in class java.lang.Object