org.nuiton.topia.migration
Class TopiaMigrationCallbackByClassNG

java.lang.Object
  org.nuiton.topia.migration.AbstractTopiaMigrationCallback
      org.nuiton.topia.migration.TopiaMigrationCallbackByClassNG

public abstract class TopiaMigrationCallbackByClassNG
extends AbstractTopiaMigrationCallback

Migration callback which use a different class for each version to migrate.

You must fill in the constructor the mapping for each version of getAvailableVersions() a matching migrator for version which extends TopiaMigrationCallbackByClassNG.MigrationCallBackForVersion.

Use the callback when you have a lot of version to migrate and the TopiaMigrationCallbackByMethod begins to be messy.

Since:

2.9.11

Version:

$Id: TopiaMigrationCallbackByClassNG.java 2571 2012-06-01 09:29:47Z tchemit $

Author:

tchemit

Nested Class Summary

static class	TopiaMigrationCallbackByClassNG.MigrationCallBackForVersion Call back for a given version.
static interface	TopiaMigrationCallbackByClassNG.MigrationCallBackForVersionResolver Resolver to obtain the correct migration class for a given version.
static class	TopiaMigrationCallbackByClassNG.MigrationCallBackForVersionResolverByServiceLoader A simple call back resolver via a service loader.

Field Summary

protected TopiaMigrationCallbackByClassNG.MigrationCallBackForVersionResolver

callBackResolver

Constructor Summary

protected

TopiaMigrationCallbackByClassNG(TopiaMigrationCallbackByClassNG.MigrationCallBackForVersionResolver callBackResolver)

Method Summary

org.nuiton.util.Version[]	getAvailableVersions()
protected void	migrateForVersion(org.nuiton.util.Version version, TopiaContextImplementor tx, boolean showSql, boolean showProgression)

Methods inherited from class org.nuiton.topia.migration.AbstractTopiaMigrationCallback

askUser, doMigration, executeSQL, executeSQL, getApplicationVersion

Methods inherited from class java.lang.Object

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

Field Detail

callBackResolver

protected TopiaMigrationCallbackByClassNG.MigrationCallBackForVersionResolver callBackResolver

Constructor Detail

TopiaMigrationCallbackByClassNG

protected TopiaMigrationCallbackByClassNG(TopiaMigrationCallbackByClassNG.MigrationCallBackForVersionResolver callBackResolver)

Method Detail

getAvailableVersions

public org.nuiton.util.Version[] getAvailableVersions()

Specified by:

getAvailableVersions in class AbstractTopiaMigrationCallback

Returns:

the available versions from the call back

migrateForVersion

protected void migrateForVersion(org.nuiton.util.Version version,
                                 TopiaContextImplementor tx,
                                 boolean showSql,
                                 boolean showProgression)
                          throws Exception

Specified by:

migrateForVersion in class AbstractTopiaMigrationCallback

Throws:

Exception