# Package org.h2.mvstore.tx

Helper classes to use the MVStore in a transactional manner.

See: Description

Interface Summary
Interface | Description
--- | ---
TransactionStore.RollbackListener | This listener can be registered with the transaction to be notified of every compensating change during transaction rollback.

Class Summary
Class | Description
--- | ---
Transaction | A transaction.
TransactionMap<K,V> | A map that supports transactions.
TransactionStore | A store that supports concurrent MVCC read-committed transactions.
TransactionStore.ArrayType | A data type that contains an array of objects with the specified data types.
TransactionStore.Change | A change in a map.
VersionedValueType | The value type for a versioned value.

## Package org.h2.mvstore.tx Description

Helper classes to use the MVStore in a transactional manner.