org.apache.xml.utils
Class PrefixResolverDefault

java.lang.Object
  |
  +--org.apache.xml.utils.PrefixResolverDefault

public class PrefixResolverDefault

extends java.lang.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

static java.lang.String

S_XMLNAMESPACEURI The URI for the XML namespace.

Constructor Summary

PrefixResolverDefault(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, Node namespaceContext) Given a namespace, get the corrisponding prefix.

Methods inherited from class java.lang.Object

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

Field Detail

S_XMLNAMESPACEURI

public static final java.lang.String S_XMLNAMESPACEURI

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

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.

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

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 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,
                                              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 java.lang.String getBaseIdentifier()

Return the base identifier.

Specified by:

getBaseIdentifier in interface PrefixResolver

Returns:

null