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.

Field Summary

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

Constructor Summary

Constructors
Constructor Description

NamespaceCache()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected Namespace`	`createNamespace(String prefix, String uri)`	A factory method to create `Namespace`instance
`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.

Class NamespaceCache

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

cache

noPrefixCache

Constructor Detail

NamespaceCache

Method Detail

get

get

getURICache

createNamespace