org.sharengo.wikitty.hbase
Class WikittyExtensionStorageHBase

java.lang.Object
  org.sharengo.wikitty.hbase.WikittyExtensionStorageHBase

All Implemented Interfaces:

WikittyExtensionStorage

public class WikittyExtensionStorageHBase
extends Object
implements WikittyExtensionStorage

Version:

$Revision: 1 $ Last update: $Date: 2010-04-16 10:29:38 +0200 (ven., 16 avril 2010) $ by : $Author: echatellier $

Author:

poussin

Field Summary

protected Map<String,WikittyExtension>	extensionCache cache for extension key: ext id (extname[extversion]) value: WikittyExtension TODO poussin 20090813 use Map with soft reference (commons-collection)
protected org.apache.hadoop.hbase.client.HTable	hTable storage for extension
protected Map<String,String>	lastVersion cache for last extension version; key: extName value: extVersion

Constructor Summary

WikittyExtensionStorageHBase()

Method Summary

void	clear(WikittyTransaction transaction)
boolean	exists(WikittyTransaction transaction, String id)
List<String>	getAllExtensionIds(WikittyTransaction transaction)
List<String>	getAllExtensionsRequires(WikittyTransaction transaction, String extensionName)
String	getLastVersion(WikittyTransaction transaction, String extName) return last version available for specified extension name
WikittyExtension	restore(WikittyTransaction transaction, String name, String version)
UpdateResponse	store(WikittyTransaction transaction, Collection<WikittyExtension> extensions)

Methods inherited from class java.lang.Object

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

Field Detail

hTable

protected org.apache.hadoop.hbase.client.HTable hTable

storage for extension

extensionCache

protected Map<String,WikittyExtension> extensionCache

cache for extension key: ext id (extname[extversion]) value: WikittyExtension TODO poussin 20090813 use Map with soft reference (commons-collection)

lastVersion

protected Map<String,String> lastVersion

cache for last extension version; key: extName value: extVersion

Constructor Detail

WikittyExtensionStorageHBase

public WikittyExtensionStorageHBase()

Method Detail

store

public UpdateResponse store(WikittyTransaction transaction,
                            Collection<WikittyExtension> extensions)

Specified by:

store in interface WikittyExtensionStorage

exists

public boolean exists(WikittyTransaction transaction,
                      String id)

Specified by:

exists in interface WikittyExtensionStorage

getAllExtensionIds

public List<String> getAllExtensionIds(WikittyTransaction transaction)

Specified by:

getAllExtensionIds in interface WikittyExtensionStorage

getAllExtensionsRequires

public List<String> getAllExtensionsRequires(WikittyTransaction transaction,
                                             String extensionName)

Specified by:

getAllExtensionsRequires in interface WikittyExtensionStorage

getLastVersion

public String getLastVersion(WikittyTransaction transaction,
                             String extName)

return last version available for specified extension name

Specified by:

getLastVersion in interface WikittyExtensionStorage

Parameters:

name - name of extension

Returns:

last version availble for this version, or null if extension doesn't exist

restore

public WikittyExtension restore(WikittyTransaction transaction,
                                String name,
                                String version)
                         throws WikittyException

Specified by:

restore in interface WikittyExtensionStorage

Throws:

WikittyException

clear

public void clear(WikittyTransaction transaction)

Specified by:

clear in interface WikittyExtensionStorage