uk.ac.soton.itinnovation.grid.service.sla.upgrade
Class UpgraderImpl

java.lang.Object
  uk.ac.soton.itinnovation.grid.service.sla.upgrade.UpgraderImpl

All Implemented Interfaces:

Upgrader

public class UpgraderImpl
extends Object
implements Upgrader

Constructor Summary

UpgraderImpl()

Method Summary

UpgradeReport

performUpgrade(String oldVersion, String versionBeingInstalled) This method is called to inform the service that an internal upgrade may be required.

Methods inherited from class java.lang.Object

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

Constructor Detail

UpgraderImpl

public UpgraderImpl()

Method Detail

performUpgrade

public UpgradeReport performUpgrade(String oldVersion,
                                    String versionBeingInstalled)

Description copied from interface: Upgrader

This method is called to inform the service that an internal upgrade may be required. e.g. a service may choose to upgrade database tables and data within tables.

Implementations must support being called many times without corrupting the upgrade. The WebConfigBase will call this method every time that a web page is refreshed during the upgrade. The method should report an UpgradeReport that describes the progress of the upgrade. If no upgrade was required, the UpgradeReport should contain a status of UpgradeStatus.COMPLETE. The UpgradeReport can contain progress information that can be used to keep the user informed of the progress of long running asynchronous upgrades.

Specified by:

performUpgrade in interface Upgrader

Parameters:

oldVersion - the version of the installation being upgraded

versionBeingInstalled - the version being installed now

Returns:

UpgradeReport a report on the status of the upgrade