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: 1.8 $

Author:

James Strachan

Field Summary

protected static Map	cache Cache of Map instances indexed by URI which contain caches of Namespace for each prefix
protected static Map	noPrefixCache Cache of Namespace instances indexed by URI for default namespaces with no prefixes

Constructor Summary

NamespaceCache()

Method Summary

protected Namespace	createNamespace(String prefix, String uri) A factory method to create Namespace instance
protected Map	createPrefixMap() A factory method to create prefix caches
protected Map	createURIMap() A factory method to create URI caches
Namespace	get(String uri)
Namespace	get(String prefix, String uri)
protected Map	getURICache(String uri)

Methods inherited from class java.lang.Object

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

Field Detail

cache

protected static Map cache

Cache of Map instances indexed by URI which contain caches of Namespace for each prefix

noPrefixCache

protected static Map noPrefixCache

Cache of Namespace instances indexed by URI for default namespaces with no prefixes

Constructor Detail

NamespaceCache

public NamespaceCache()

Method Detail

get

public Namespace get(String prefix,
                     String uri)

Returns:

the name model for the given name and namepsace

get

public Namespace get(String uri)

Returns:

the name model for the given name and namepsace

getURICache

protected Map getURICache(String uri)

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 Namespace instance

Returns:

a newly created Namespace instance.

createPrefixMap

protected Map createPrefixMap()

A factory method to create prefix caches

Returns:

a newly created Map instance.

createURIMap

protected Map createURIMap()

A factory method to create URI caches

Returns:

a newly created Map instance.