org.htmlunit.xpath.xml.utils

Class PrefixResolverDefault

java.lang.Object

org.htmlunit.xpath.xml.utils.PrefixResolverDefault

All Implemented Interfaces:

PrefixResolver

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.

Constructor Summary

Constructors

Constructor and Description
PrefixResolverDefault(Node xpathExpressionContext) Construct a PrefixResolverDefault object.

Method Summary

Modifier and Type	Method and Description
String	getNamespaceForPrefix(String prefix) Given a namespace, get the corresponding prefix.
String	getNamespaceForPrefix(String prefix, Node namespaceContext) Given a namespace, get the corresponding prefix, based on the context node.
boolean	handlesNullPrefixes()

Methods inherited from class java.lang.Object

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

Constructor Detail

PrefixResolverDefault

public PrefixResolverDefault(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 corresponding prefix. This assumes that the PrefixResolver holds its own namespace context, or is a namespace context itself.

Specified by:

getNamespaceForPrefix in interface PrefixResolver

Parameters:

prefix - The prefix to look up, which may be an empty string ("") for the default Namespace.

Returns:

The associated Namespace URI, or null if the prefix is undeclared in this context.

getNamespaceForPrefix

public String getNamespaceForPrefix(String prefix,
                                    Node namespaceContext)

Given a namespace, get the corresponding prefix, based on the context node.

Specified by:

getNamespaceForPrefix in interface PrefixResolver

Parameters:

prefix - The prefix to look up, which may be an empty string ("") for the default Namespace.

namespaceContext - The node context from which to look up the URI.

Returns:

The associated Namespace URI as a string, or null if the prefix is undeclared in this context.

handlesNullPrefixes

public boolean handlesNullPrefixes()

Specified by:

handlesNullPrefixes in interface PrefixResolver