org.dom4j.tree

Class NamespaceCache

java.lang.Object

org.dom4j.tree.NamespaceCache

public class NamespaceCache
extends Object

NamespaceCache caches instances of DefaultNamespace for reuse both across documents and within documents.

Version:

$Revision: 1.15 $

Author:

James Strachan , Maarten Coene, Brett Finnell

Field Summary

Fields

Modifier and Type	Field and Description
protected static Map<String,Map<String,WeakReference<Namespace>>>	cache Cache of Mapinstances indexed by URI which contain caches of Namespacefor each prefix
protected static Map<String,WeakReference<Namespace>>	noPrefixCache Cache of Namespaceinstances indexed by URI for default namespaces with no prefixes

Constructor Summary

Constructors

Constructor and Description
NamespaceCache()

Method Summary

Modifier and Type	Method and Description
protected Namespace	createNamespace(String prefix, String uri) A factory method to create Namespaceinstance
Namespace	get(String uri) DOCUMENT ME!
Namespace	get(String prefix, String uri) DOCUMENT ME!
protected Map<String,WeakReference<Namespace>>	getURICache(String uri) DOCUMENT ME!

Methods inherited from class java.lang.Object

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

Field Detail

cache

protected static Map<String,Map<String,WeakReference<Namespace>>> cache

Cache of Mapinstances indexed by URI which contain caches of Namespacefor each prefix

noPrefixCache

protected static Map<String,WeakReference<Namespace>> noPrefixCache

Cache of Namespaceinstances indexed by URI for default namespaces with no prefixes

Constructor Detail

NamespaceCache

public NamespaceCache()

Method Detail

get

public Namespace get(String prefix,
                     String uri)

DOCUMENT ME!

Parameters:

prefix - DOCUMENT ME!

uri - DOCUMENT ME!

Returns:

the namespace for the given prefix and uri

get

public Namespace get(String uri)

DOCUMENT ME!

Parameters:

uri - DOCUMENT ME!

Returns:

the name model for the given name and namepsace

getURICache

protected Map<String,WeakReference<Namespace>> getURICache(String uri)

DOCUMENT ME!

Parameters:

uri - DOCUMENT ME!

Returns:

the cache for the given namespace URI. If one does not currently exist it is created.

createNamespace

protected Namespace createNamespace(String prefix,
                                    String uri)

A factory method to create Namespaceinstance

Parameters:

prefix - DOCUMENT ME!

uri - DOCUMENT ME!

Returns:

a newly created Namespaceinstance.