Type	NEW
Priority	MEDIUM
Status	DEPRECATED

Topic	XmlBlaster provides a XML:DB-API based persistence layer to store messages marked with <persistent/>
Des cription	deprecated: see queue.jdbc.commontable requirement To store messages and to restore them again after a new startup of the xmlBlaster server there is a lightweight interface, called I_PersitenceDriver, available. XMLDB Plugin is an implementation of the interface I_PersitenceDriver. This plugin stores messages in a XMLDB database, one message to one entry (plus a key and a qos entry per message). To avoid corrupt contet data the message is enclosed into <![CDATA[]]>. This plugin can be activated by setting the properties: i.e. Persistence.Driver.Type=xmldb. Note that you need to declare the version (Persistence.Driver.Version) and the path (Persistence.Driver.Path) of the persistence driver as well. See the xindice proxy for details. Only messages which are marked as <persistent> are stored using this persistent driver.
Configure	Property Default / Example Description Implemented Persistence.Driver.Type filestore Example: xmldb Gives the type of the persistence driver. Persistence.Driver.Version 1.0 Example: xindice Gives the version of the persistence driver type. Persistence.Path ${user.home}${file.separator}tmp Example: xmldb:xindice:///db/xmlBlaster Gives the path of storage depending on the desired persistence driver type and version. NOTE: Configuration parameters are specified on command line (-someValue 17) or in the xmlBlaster.properties file (someValue=17). See requirement "util.property" for details. Columns named Impl tells you if the feature is implemented. Columns named Hot tells you if the configuration is changeable in hot operation.
Todo	Find the CORBA Bug! Problem is: currently we're using two different ORB's in the same VM. We try to address this problem by delegating the Plugins to different ClassLoaders.
See REQ	engine.qos.publish.persistent
See REQ	engine.persistence
See API	org.xmlBlaster.engine.persistence.I_PersistenceDriver
See API	org.xmlBlaster.engine.persistence.xmldb.XMLDBPlugin
See	http://www.xmldb.org
See TEST	org.xmlBlaster.test.persistence.TestPersistenceXMLDB

This page is generated from the requirement XML file xmlBlaster/doc/requirements/engine.persistence.xmldb.xml

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