org.nuiton.topia.migration

Class TopiaMigrationCallbackByClassNG<PersistenceContext extends TopiaPersistenceContext>

java.lang.Object

org.nuiton.topia.migration.AbstractTopiaMigrationCallback<PersistenceContext>

org.nuiton.topia.migration.TopiaMigrationCallbackByClassNG<PersistenceContext>

public abstract class TopiaMigrationCallbackByClassNG<PersistenceContext extends TopiaPersistenceContext>
extends AbstractTopiaMigrationCallback<PersistenceContext>

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

Author:

tchemit

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TopiaMigrationCallbackByClassNG.MigrationCallBackForVersion<PersistenceContext extends TopiaPersistenceContext> Call back for a given version.
static interface	TopiaMigrationCallbackByClassNG.MigrationCallBackForVersionResolver<PersistenceContext extends TopiaPersistenceContext> 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

Fields

Modifier and Type	Field and Description
protected TopiaMigrationCallbackByClassNG.MigrationCallBackForVersionResolver<PersistenceContext>	callBackResolver

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	TopiaMigrationCallbackByClassNG(TopiaMigrationCallbackByClassNG.MigrationCallBackForVersionResolver<PersistenceContext> callBackResolver)

Method Summary

Methods

Modifier and Type	Method and Description
org.nuiton.util.Version[]	getAvailableVersions()
protected void	migrateForVersion(org.nuiton.util.Version version, PersistenceContext tx, boolean showSql, boolean showProgression)

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

askUser, doMigration, executeSQL, executeSQL, getSqlSupport

Methods inherited from class java.lang.Object

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

Field Detail

callBackResolver

protected TopiaMigrationCallbackByClassNG.MigrationCallBackForVersionResolver<PersistenceContext extends TopiaPersistenceContext> callBackResolver

Constructor Detail

TopiaMigrationCallbackByClassNG

protected TopiaMigrationCallbackByClassNG(TopiaMigrationCallbackByClassNG.MigrationCallBackForVersionResolver<PersistenceContext> callBackResolver)

Method Detail

getAvailableVersions

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

Specified by:

getAvailableVersions in class AbstractTopiaMigrationCallback<PersistenceContext extends TopiaPersistenceContext>

Returns:

the available versions from the call back

migrateForVersion

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

Specified by:

migrateForVersion in class AbstractTopiaMigrationCallback<PersistenceContext extends TopiaPersistenceContext>

Throws:

Exception