com.ibm.xml.enc.dom
Class PrefixResolverImpl

java.lang.Object
  com.ibm.xml.enc.dom.PrefixResolverImpl

All Implemented Interfaces:

org.apache.xml.utils.PrefixResolver

public class PrefixResolverImpl
extends java.lang.Object
implements org.apache.xml.utils.PrefixResolver

This class implements a generic PrefixResolver that can be used to perform prefix-to-namespace lookup for the XPath object.

Field Summary

(package private) org.w3c.dom.Node	m_context The context to resolve the prefix from, if the context is not given.
(package private) java.util.Map	nsmap

Constructor Summary

PrefixResolverImpl(org.w3c.dom.Node xpathExpressionContext)
Construct a PrefixResolverDefault object.

Method Summary

java.lang.String	getBaseIdentifier() Return the base identifier.
java.lang.String	getNamespaceForPrefix(java.lang.String prefix) Given a namespace, get the corrisponding prefix.
java.lang.String	getNamespaceForPrefix(java.lang.String prefix, org.w3c.dom.Node namespaceContext) Given a namespace, get the corrisponding prefix.
boolean	handlesNullPrefixes()
void	setNamespaceMap(java.util.Map map)

Methods inherited from class java.lang.Object

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

Field Detail

m_context

org.w3c.dom.Node m_context

The context to resolve the prefix from, if the context is not given.

nsmap

java.util.Map nsmap

Constructor Detail

PrefixResolverImpl

public PrefixResolverImpl(org.w3c.dom.Node xpathExpressionContext)

Construct a PrefixResolverDefault object.

Parameters:

xpathExpressionContext - The context from which XPath expression prefixes will be resolved. Warning: This will not work correctly if xpathExpressionContext is an attribute node.

xpathExpressionContext - Node from which to start searching for a xmlns attribute that binds a prefix to a namespace (when the namespace context is not specified in the getNamespaceForPrefix call).

Method Detail

setNamespaceMap

public void setNamespaceMap(java.util.Map map)

getNamespaceForPrefix

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

Given a namespace, get the corrisponding prefix. This assumes that the PrevixResolver hold's it's own namespace context, or is a namespace context itself.

Specified by:

getNamespaceForPrefix in interface org.apache.xml.utils.PrefixResolver

Parameters:

prefix - Prefix to resolve.

Returns:

Namespace that prefix resolves to, or null if prefix is not bound.

getNamespaceForPrefix

public java.lang.String getNamespaceForPrefix(java.lang.String prefix,
                                              org.w3c.dom.Node namespaceContext)

Given a namespace, get the corrisponding prefix. Warning: This will not work correctly if namespaceContext is an attribute node.

Specified by:

getNamespaceForPrefix in interface org.apache.xml.utils.PrefixResolver

Parameters:

prefix - Prefix to resolve.

namespaceContext - Node from which to start searching for a xmlns attribute that binds a prefix to a namespace.

Returns:

Namespace that prefix resolves to, or null if prefix is not bound.

getBaseIdentifier

public java.lang.String getBaseIdentifier()

Return the base identifier.

Specified by:

getBaseIdentifier in interface org.apache.xml.utils.PrefixResolver

Returns:

null

handlesNullPrefixes

public boolean handlesNullPrefixes()

Specified by:

handlesNullPrefixes in interface org.apache.xml.utils.PrefixResolver

See Also:

PrefixResolver.handlesNullPrefixes()