alma.acs.config.validators

Class XmlNamespaceContextContainer

java.lang.Object

alma.acs.config.validators.XmlNamespaceContextContainer

All Implemented Interfaces:

javax.xml.namespace.NamespaceContext

public class XmlNamespaceContextContainer
extends java.lang.Object
implements javax.xml.namespace.NamespaceContext

Support class for XPath queries which allows to bind XML namespaces to prefixes, using XPath.setNamespaceContext(javax.xml.namespace.NamespaceContext). This is especially needed for XPath queries on XML documents that use an (unnamed) default namespace, for which an "artificial" prefix must be defined and communicated to the XPath engine, so that the XPath expression can use that prefix in order to match the default namespace.

This class with its method addNamespace(String, String) This method serves a similar purpose as jdom's org.jdom.xpath.XPath#addNamespace(String, String) method.

Implementation note: we only keep a map to quickly go from prefix to namespace, but not the other way around. According to http://xml.apache.org/xalan-j/xpath_apis.html#namespacecontext the XPath processor in Xalan never needs the methods that return prefixes, thus their performance does not matter at the moment.

Author:

hsommer

Constructor Summary

Constructors

Constructor and Description
XmlNamespaceContextContainer()

Method Summary

Modifier and Type	Method and Description
void	addNamespace(java.lang.String prefix, java.lang.String uri) Adds a prefix/namespace pair.
java.lang.String	getNamespaceURI(java.lang.String prefix)
java.lang.String	getPrefix(java.lang.String namespaceURI)
java.util.Iterator<java.lang.String>	getPrefixes(java.lang.String namespaceURI)

Methods inherited from class java.lang.Object

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

Constructor Detail

XmlNamespaceContextContainer

public XmlNamespaceContextContainer()

Method Detail

getNamespaceURI

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

Specified by:

getNamespaceURI in interface javax.xml.namespace.NamespaceContext

getPrefix

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

Specified by:

getPrefix in interface javax.xml.namespace.NamespaceContext

See Also:

NamespaceContext.getPrefix(java.lang.String)

getPrefixes

public java.util.Iterator<java.lang.String> getPrefixes(java.lang.String namespaceURI)

Specified by:

getPrefixes in interface javax.xml.namespace.NamespaceContext

addNamespace

public void addNamespace(java.lang.String prefix,
                         java.lang.String uri)

Adds a prefix/namespace pair.

Parameters:

prefix -

uri -