org.mmbase.cache.xslt
Class TemplateCache

java.lang.Object
  java.util.Dictionary
      java.util.Hashtable
          org.mmbase.util.LRUHashtable
              org.mmbase.cache.Cache
                  org.mmbase.cache.xslt.TemplateCache

All Implemented Interfaces:

java.lang.Cloneable, java.util.Map, java.io.Serializable, SizeMeasurable

public class TemplateCache

extends Cache

A cache for XSL transformation templates. A template can be based on a file, or on a string. In the first case the cache key is based on the file name, and the cache entry is invalidated if the file changes (so, if you uses 'imports' in the XSL template, you have to touch the file which imports, if the imported files changes). If the template is based on a string, then the string itself serves as a key.

Since:

MMBase-1.6

Version:

$Id: TemplateCache.java,v 1.11 2003/07/17 17:01:17 michiel Exp $

Author:

Michiel Meeuwissen

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class org.mmbase.util.LRUHashtable

LRUHashtable.LRUEntry, LRUHashtable.LRUEntrySet, LRUHashtable.LRUEntrySetIterator

Field Summary

Fields inherited from class org.mmbase.cache.Cache

maxEntrySize

Method Summary

static TemplateCache	getCache() Returns the Template cache.
java.lang.String	getDescription() Gives a description for this cache type.
java.lang.String	getName() Returns a name for this cache type.
javax.xml.transform.Templates	getTemplates(javax.xml.transform.Source src)
javax.xml.transform.Templates	getTemplates(javax.xml.transform.Source src, javax.xml.transform.URIResolver uri)
static void	main(java.lang.String[] argv) Invocation of the class from the commandline for testing
java.lang.Object	put(java.lang.Object key, java.lang.Object value) You can only put Source/Templates values in the cache, so this throws an Exception.
java.lang.Object	put(javax.xml.transform.Source src, javax.xml.transform.Templates value)
java.lang.Object	put(javax.xml.transform.Source src, javax.xml.transform.Templates value, javax.xml.transform.URIResolver uri)
java.lang.Object	remove(java.lang.Object key) When removing an entry (because of LRU e.g), then also the FileWatchter must be removed.

Methods inherited from class org.mmbase.cache.Cache

get, getByteSize, getByteSize, getCache, getCaches, getDefaultMaxEntrySize, getMaxEntrySize, getTotalByteSize, isActive, putCache, putCache, setActive

Methods inherited from class org.mmbase.util.LRUHashtable

clear, clone, elements, entrySet, getCount, getHits, getMisses, getOrderedElements, getOrderedElements, getOrderedEntries, getOrderedEntries, getPuts, getRatio, getSize, getStats, keySet, setSize, size, toString, toString, values

Methods inherited from class java.util.Hashtable

contains, containsKey, containsValue, equals, hashCode, isEmpty, keys, putAll, rehash

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

getCache

public static TemplateCache getCache()

Returns the Template cache.

getName

public java.lang.String getName()

Description copied from class: Cache

Returns a name for this cache type. Default it is the class name, but this normally will be overriden.

Overrides:

getName in class Cache

getDescription

public java.lang.String getDescription()

Description copied from class: Cache

Gives a description for this cache type. This can be used in cache overviews.

Overrides:

getDescription in class Cache

getTemplates

public javax.xml.transform.Templates getTemplates(javax.xml.transform.Source src)

getTemplates

public javax.xml.transform.Templates getTemplates(javax.xml.transform.Source src,
                                                  javax.xml.transform.URIResolver uri)

remove

public java.lang.Object remove(java.lang.Object key)

When removing an entry (because of LRU e.g), then also the FileWatchter must be removed.

Specified by:

remove in interface java.util.Map

Overrides:

remove in class LRUHashtable

Parameters:

key - the key of the element

Returns:

the original value of the element if it existed, null if it could not be found

put

public java.lang.Object put(java.lang.Object key,
                            java.lang.Object value)

You can only put Source/Templates values in the cache, so this throws an Exception.

Specified by:

put in interface java.util.Map

Overrides:

put in class Cache

Throws:

java.lang.RuntimeException

put

public java.lang.Object put(javax.xml.transform.Source src,
                            javax.xml.transform.Templates value)

put

public java.lang.Object put(javax.xml.transform.Source src,
                            javax.xml.transform.Templates value,
                            javax.xml.transform.URIResolver uri)

main

public static void main(java.lang.String[] argv)

Invocation of the class from the commandline for testing