org.apache.xerces.util

Class NamespaceSupport

public class NamespaceSupport extends Object implements NamespaceContext

Namespace support for XML document handlers. This class doesn't perform any error checking and assumes that all strings passed as arguments to methods are unique symbols. The SymbolTable class can be used for this purpose.

Version: $Id: NamespaceSupport.java,v 1.20 2005/06/23 05:39:17 mrglavas Exp $

Author: Andy Clark, IBM

Nested Class Summary
protected class	NamespaceSupport.Prefixes

Field Summary
protected int[]	fContext Context indexes.
protected int	fCurrentContext The current context.
protected String[]	fNamespace Namespace binding information.
protected int	fNamespaceSize The top of the namespace information array.
protected String[]	fPrefixes

Constructor Summary
	NamespaceSupport() Default constructor.
	NamespaceSupport(NamespaceContext context) Constructs a namespace context object and initializes it with the prefixes declared in the specified context.

Method Summary
boolean	containsPrefix(String prefix) Checks whether a binding or unbinding for the given prefix exists in the context.
boolean	declarePrefix(String prefix, String uri)
Enumeration	getAllPrefixes()
String	getDeclaredPrefixAt(int index)
int	getDeclaredPrefixCount()
String	getPrefix(String uri)
String	getURI(String prefix)
void	popContext()
void	pushContext()
void	reset()

Field Detail

fContext

protected int[] fContext

Context indexes. This array contains indexes into the namespace information array. The index at the current context is the start index of declared namespace bindings and runs to the size of the namespace information array.

fCurrentContext

protected int fCurrentContext

The current context.

fNamespace

protected String[] fNamespace

Namespace binding information. This array is composed of a series of tuples containing the namespace binding information: <prefix, uri>. The default size can be set to anything as long as it is a power of 2 greater than 1.