public final class DefaultNamespaceContext
extends java.lang.Object
implements javax.xml.namespace.NamespaceContext
A NamespaceContext which only
contains bindings for the xml and xmlns prefixes.
| Modifier and Type | Method and Description |
|---|---|
static DefaultNamespaceContext |
getInstance()
Returns the one and only instance of this class.
|
java.lang.String |
getNamespaceURI(java.lang.String prefix)
Get Namespace URI bound to a prefix in the current scope.
|
java.lang.String |
getPrefix(java.lang.String namespaceURI)
Get prefix bound to Namespace URI in the current scope.
|
java.util.Iterator |
getPrefixes(java.lang.String namespaceURI)
Get all prefixes bound to a Namespace URI in the current
scope.
|
public static DefaultNamespaceContext getInstance()
public java.lang.String getNamespaceURI(java.lang.String prefix)
javax.xml.namespace.NamespaceContextGet Namespace URI bound to a prefix in the current scope.
When requesting a Namespace URI by prefix, the following table describes the returned Namespace URI value for all possible prefix values:
getNamespaceURI(prefix)
return value for specified prefixes
|
|
| prefix parameter | Namespace URI return value |
DEFAULT_NS_PREFIX ("") |
default Namespace URI in the current scope or
when there is no default Namespace URI in the current scope |
| bound prefix | Namespace URI bound to prefix in current scope |
| unbound prefix | |
XMLConstants.XML_NS_PREFIX ("xml") |
XMLConstants.XML_NS_URI
("http://www.w3.org/XML/1998/namespace") |
XMLConstants.XMLNS_ATTRIBUTE ("xmlns") |
XMLConstants.XMLNS_ATTRIBUTE_NS_URI
("http://www.w3.org/2000/xmlns/") |
null |
IllegalArgumentException is thrown |
getNamespaceURI in interface javax.xml.namespace.NamespaceContextprefix - prefix to look uppublic java.lang.String getPrefix(java.lang.String namespaceURI)
javax.xml.namespace.NamespaceContextGet prefix bound to Namespace URI in the current scope.
To get all prefixes bound to a Namespace URI in the current
scope, use NamespaceContext.getPrefixes(String namespaceURI).
When requesting a prefix by Namespace URI, the following table describes the returned prefix value for all Namespace URI values:
getPrefix(namespaceURI) return value for
specified Namespace URIs
|
|
| Namespace URI parameter | prefix value returned |
| <default Namespace URI> | XMLConstants.DEFAULT_NS_PREFIX ("")
|
| bound Namespace URI | prefix bound to Namespace URI in the current scope, if multiple prefixes are bound to the Namespace URI in the current scope, a single arbitrary prefix, whose choice is implementation dependent, is returned |
| unbound Namespace URI | null |
XMLConstants.XML_NS_URI
("http://www.w3.org/XML/1998/namespace") |
XMLConstants.XML_NS_PREFIX ("xml") |
XMLConstants.XMLNS_ATTRIBUTE_NS_URI
("http://www.w3.org/2000/xmlns/") |
XMLConstants.XMLNS_ATTRIBUTE ("xmlns") |
null |
IllegalArgumentException is thrown |
getPrefix in interface javax.xml.namespace.NamespaceContextnamespaceURI - URI of Namespace to lookuppublic java.util.Iterator getPrefixes(java.lang.String namespaceURI)
javax.xml.namespace.NamespaceContextGet all prefixes bound to a Namespace URI in the current scope.
An Iterator over String elements is returned in an arbitrary, implementation dependent, order.
The Iterator is
not modifiable. e.g. the
remove() method will throw
UnsupportedOperationException.
When requesting prefixes by Namespace URI, the following table describes the returned prefixes value for all Namespace URI values:
getPrefixes(namespaceURI) return value for
specified Namespace URIs |
|
| Namespace URI parameter | prefixes value returned |
| bound Namespace URI, including the <default Namespace URI> | Iterator over prefixes bound to Namespace URI in
the current scope in an arbitrary, implementation dependent,
order |
| unbound Namespace URI | empty Iterator |
XMLConstants.XML_NS_URI
("http://www.w3.org/XML/1998/namespace") |
Iterator with one element set to
XMLConstants.XML_NS_PREFIX ("xml") |
XMLConstants.XMLNS_ATTRIBUTE_NS_URI
("http://www.w3.org/2000/xmlns/") |
Iterator with one element set to
XMLConstants.XMLNS_ATTRIBUTE ("xmlns") |
null |
IllegalArgumentException is thrown |
getPrefixes in interface javax.xml.namespace.NamespaceContextnamespaceURI - URI of Namespace to lookupIterator for all prefixes bound to the
Namespace URI in the current scopeCopyright © 1999-2010 The Apache Software Foundation. All Rights Reserved.