org.apache.commons.betwixt.strategy
Class NamespacePrefixMapper

java.lang.Object
  org.apache.commons.betwixt.strategy.NamespacePrefixMapper

public class NamespacePrefixMapper
extends java.lang.Object

Maps namespace URI's to prefixes.

When validating xml documents including namespaces, the issue of prefixes (the short expression before the colon in a universal name) becomes important. DTDs are not namespace aware and so a fixed prefixed must be chosen and used consistently. This class is used to supply consistent, user specified prefixes.

Version:

$Revision: 561314 $

Author:

Apache Commons Team

Constructor Summary

NamespacePrefixMapper()

Method Summary

protected java.lang.String	generatePrefix(java.lang.String namespaceUri) Generates a prefix for the given namespace Uri.
java.lang.String	getPrefix(java.lang.String namespaceUri) Gets the prefix to be used with the given namespace URI
void	setPrefix(java.lang.String namespaceUri, java.lang.String prefix) Sets the prefix to be used for the given namespace URI.

Methods inherited from class java.lang.Object

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

Constructor Detail

NamespacePrefixMapper

public NamespacePrefixMapper()

Method Detail

getPrefix

public java.lang.String getPrefix(java.lang.String namespaceUri)

Gets the prefix to be used with the given namespace URI

Parameters:

namespaceUri -

Returns:

prefix, not null

setPrefix

public void setPrefix(java.lang.String namespaceUri,
                      java.lang.String prefix)

Sets the prefix to be used for the given namespace URI. This method does not check for clashes amongst the namespaces. Possibly it should.

Parameters:

namespaceUri -

prefix -

generatePrefix

protected java.lang.String generatePrefix(java.lang.String namespaceUri)

Generates a prefix for the given namespace Uri. Used to assign prefixes for unassigned namespaces. Subclass may wish to override this method to provide more sophisticated implementations.

Parameters:

namespaceUri - URI, not null

Returns:

prefix, not null