src.java.com.ctc.wstx.util.EmptyNamespaceContext Maven / Gradle / Ivy
package com.ctc.wstx.util;
import java.io.Writer;
import java.util.Iterator;
import javax.xml.namespace.NamespaceContext;
import javax.xml.stream.XMLStreamWriter;
/**
* Dummy {@link NamespaceContext} (and {@link BaseNsContext})
* implementation that is usually used in
* non-namespace-aware mode.
*/
public final class EmptyNamespaceContext
extends BaseNsContext
{
final static EmptyNamespaceContext sInstance = new EmptyNamespaceContext();
private EmptyNamespaceContext() { }
public static EmptyNamespaceContext getInstance() { return sInstance; }
/*
/////////////////////////////////////////////
// Extended API
/////////////////////////////////////////////
*/
public Iterator getNamespaces() {
return EmptyIterator.getInstance();
}
/**
* Method called by the matching start element class to
* output all namespace declarations active in current namespace
* scope, if any.
*/
public void outputNamespaceDeclarations(Writer w)
{
; // nothing to output
}
public void outputNamespaceDeclarations(XMLStreamWriter w)
{
; // nothing to output
}
/*
/////////////////////////////////////////////////
// Template methods sub-classes need to implement
/////////////////////////////////////////////////
*/
public String doGetNamespaceURI(String prefix) {
return null;
}
public String doGetPrefix(String nsURI) {
return null;
}
public Iterator doGetPrefixes(String nsURI) {
return EmptyIterator.getInstance();
}
}