File	Doc	Category	Size	Date	Package
NamespaceContext.java	API Doc	Apache Xerces 3.0.1	6122	Fri Sep 14 20:33:54 BST 2007	org.apache.xerces.xni

NamespaceContext

Fields Summary
public static final String	XML_URI The XML Namespace ("http://www.w3.org/XML/1998/namespace"). This is the Namespace URI that is automatically mapped to the "xml" prefix.
public static final String	XMLNS_URI XML Information Set REC all namespace attributes (including those named xmlns, whose [prefix] property has no value) have a namespace URI of http://www.w3.org/2000/xmlns/

Constructors Summary

Methods Summary
public boolean	declarePrefix(java.lang.String prefix, java.lang.String uri) Declare a Namespace prefix. This method declares a prefix in the current Namespace context; the prefix will remain in force until this context is popped, unless it is shadowed in a descendant context. Note that to declare a default Namespace, use the empty string. The prefixes "xml" and "xmlns" can't be rebound. Note that you must not declare a prefix after you've pushed and popped another Namespace. param prefix The prefix to declare, or null for the empty string. param uri The Namespace URI to associate with the prefix. return true if the prefix was legal, false otherwise see #getURI see #getDeclaredPrefixAt
public java.util.Enumeration	getAllPrefixes() Return an enumeration of all prefixes whose declarations are active in the current context. This includes declarations from parent contexts that have not been overridden. return Enumeration
public java.lang.String	getDeclaredPrefixAt(int index) Returns the prefix at the specified index in the current context.
public int	getDeclaredPrefixCount() Return a count of locally declared prefixes, including the default prefix if bound.
public java.lang.String	getPrefix(java.lang.String uri) Look up a namespace URI and get one of the mapped prefix. This method looks up the namespace URI in the current context. If more than one prefix is currently mapped to the same URI, this method will make an arbitrary selection If no mapping is found, this methods will continue lookup in the parent context(s). param uri The namespace URI to look up. return One of the associated prefixes, or null if the uri does not map to any prefix. see #getPrefix
public java.lang.String	getURI(java.lang.String prefix) Look up a prefix and get the currently-mapped Namespace URI. This method looks up the prefix in the current context. If no mapping is found, this methods will continue lookup in the parent context(s). Use the empty string ("") for the default Namespace. param prefix The prefix to look up. return The associated Namespace URI, or null if the prefix is undeclared in this context.
public void	popContext() Revert to the previous Namespace context. The context should be popped at the end of each XML element. After popping the context, all Namespace prefix mappings that were previously in force are restored. Users must not attempt to declare additional Namespace prefixes after popping a context, unless you push another context first. see #pushContext
public void	pushContext() Start a new Namespace context. A new context should be pushed at the beginning of each XML element: the new context will automatically inherit the declarations of its parent context, but it will also keep track of which declarations were made within this context. see #popContext
public void	reset() Reset this Namespace support object for reuse. It is necessary to invoke this method before reusing the Namespace support object for a new session. Note that implementations of this method need to ensure that the declaration of the prefixes "xmlns" and "xml" are available.