net.akaish.kitty.orm.dumputils.migrations

Class KittyORMVersionMigrator

java.lang.Object

net.akaish.kitty.orm.dumputils.migrations.KittyORMVersionMigrator

Direct Known Subclasses:

KittyDevDropCreateMigrator, KittyORMVersionFileDumpMigrator, KittySimpleMigrator

public abstract class KittyORMVersionMigrator
extends java.lang.Object

Abstract databaseClass versions migrator Created by akaish on 05.03.18.

Author:

akaish (Denis Bogomolov)

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.String	AME_SEQUENCE_NOT_APPLICABLE
protected android.content.Context	context
protected int	currentVersion
protected boolean	logOn
protected java.lang.String	logTag
protected KittyMigrationFactory	migrationFactory
protected java.util.LinkedList<KittyMigration>	migrations
protected int	oldVersion
protected java.lang.String	schemaName

Constructor Summary

Constructors

Constructor and Description
KittyORMVersionMigrator(int oldVersion, int currentVersion, android.content.Context ctx, java.lang.String schemaName, java.lang.String logTag, boolean logOn, java.lang.Object[] factoryParameters, java.lang.Object[] migrationsParameters)

Method Summary

Modifier and Type	Method and Description
protected abstract <T extends KittyMigrationFactory> T	getMigrationFactory(java.lang.Object... parameters) Returns child depended migrations factory
java.util.LinkedList<KittyMigration>	getMigrations() Returns list of sorted migrations.
java.util.Iterator<KittyMigration>	getMigrationsIterator() Returns iterator for migrations if migration sequence is applicable to current schema, or null if not applicable.
boolean	isMigrationSequenceApplicable() Returns true if migration sequence can be applied step by step from old to current databaseClass versions
protected void	orderMigrationsList() Orders migrations in migrations list in ascending order by migration's minVersionLower field
protected abstract void	setMigrations(java.lang.Object... parameters) Fills migrations with migrationFactory
protected abstract void	setParameters(java.lang.Object[] factoryParameters, java.lang.Object[] migrationsParameters)

Methods inherited from class java.lang.Object

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

Field Detail

migrations

protected final java.util.LinkedList<KittyMigration> migrations

migrationFactory

protected final KittyMigrationFactory migrationFactory

oldVersion

protected final int oldVersion

currentVersion

protected final int currentVersion

schemaName

protected final java.lang.String schemaName

logTag

protected final java.lang.String logTag

logOn

protected final boolean logOn

context

protected final android.content.Context context

AME_SEQUENCE_NOT_APPLICABLE

protected final java.lang.String AME_SEQUENCE_NOT_APPLICABLE

See Also:

Constant Field Values

Constructor Detail

KittyORMVersionMigrator

public KittyORMVersionMigrator(int oldVersion,
                               int currentVersion,
                               android.content.Context ctx,
                               java.lang.String schemaName,
                               java.lang.String logTag,
                               boolean logOn,
                               java.lang.Object[] factoryParameters,
                               java.lang.Object[] migrationsParameters)

Method Detail

setParameters

protected abstract void setParameters(java.lang.Object[] factoryParameters,
                                      java.lang.Object[] migrationsParameters)

getMigrationFactory

protected abstract <T extends KittyMigrationFactory> T getMigrationFactory(java.lang.Object... parameters)

Returns child depended migrations factory

Type Parameters:

T -

Returns:

setMigrations

protected abstract void setMigrations(java.lang.Object... parameters)

Fills migrations with migrationFactory

orderMigrationsList

protected void orderMigrationsList()

Orders migrations in migrations list in ascending order by migration's minVersionLower field

isMigrationSequenceApplicable

public boolean isMigrationSequenceApplicable()

Returns true if migration sequence can be applied step by step from old to current databaseClass versions

Returns:

getMigrationsIterator

public java.util.Iterator<KittyMigration> getMigrationsIterator()

Returns iterator for migrations if migration sequence is applicable to current schema, or null if not applicable. If you wish to get migrations for debug or other purposes, use getMigrations() instead.

Returns:

getMigrations

public java.util.LinkedList<KittyMigration> getMigrations()

Returns list of sorted migrations. You better use getMigrationsIterator() for applying migration sequence cause this method won't check whether migration sequence applicable or not.

Returns: