org.apache.xml.utils
Class PrefixResolverDefault

java.lang.Object
  org.apache.xml.utils.PrefixResolverDefault

All Implemented Interfaces:

PrefixResolver

Direct Known Subclasses:

XPathNSResolverImpl

public class PrefixResolverDefault

extends Object

implements 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.
static String	S_XMLNAMESPACEURI The URI for the XML namespace.

Constructor Summary

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

Method Summary

String	getBaseIdentifier() Return the base identifier.
String	getNamespaceForPrefix(String prefix) Given a namespace, get the corrisponding prefix.
String	getNamespaceForPrefix(String prefix, org.w3c.dom.Node namespaceContext) Given a namespace, get the corrisponding prefix.
boolean	handlesNullPrefixes()

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.

S_XMLNAMESPACEURI

public static final String S_XMLNAMESPACEURI

The URI for the XML namespace. (Duplicate of that found in org.apache.xpath.XPathContext).

See Also:

Constant Field Values

Constructor Detail

PrefixResolverDefault

public PrefixResolverDefault(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.

Method Detail

getNamespaceForPrefix

public String getNamespaceForPrefix(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 PrefixResolver

Parameters:

prefix - Prefix to resolve.

Returns:

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

getNamespaceForPrefix

public String getNamespaceForPrefix(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 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 String getBaseIdentifier()

Return the base identifier.

Specified by:

getBaseIdentifier in interface PrefixResolver

Returns:

null

handlesNullPrefixes

public boolean handlesNullPrefixes()

Specified by:

handlesNullPrefixes in interface PrefixResolver

See Also:

PrefixResolver.handlesNullPrefixes()