com.liferay.portal.upgrade.util
Interfaces 
UpgradeColumn
UpgradeTable
ValueMapper
Classes 
BaseUpgradeColumnImpl
BaseUpgradeTableImpl
DatabaseValueMapper
DefaultPKMapper
DefaultUpgradeTableImpl
IdReplacer
LazyPKUpgradeColumnImpl
MemoryValueMapper
PKUpgradeColumnImpl
SwapUpgradeColumnImpl
Table
TempUpgradeColumnImpl
ValueMapperFactory
ValueMapperUtil
ValueMapperWrapper