Package com.qfs.multiversion

Interface ITransaction

All Known Subinterfaces:

IActivePivotTransaction, IAggregateProviderHolderTransaction, IAggregateProviderTransaction, IAsyncTransaction, IAxisHierarchyTransaction, IConcreteReferenceTransaction, ICubeTransaction, IDatastoreSchemaTransaction, IDistributedActivePivotTransaction, IDistributedAxisHierarchyTransaction, IDistributedHierarchyTransaction, IDistributedMeasureHierarchyTransaction, IGlobalAggregateProviderTransaction, IHierarchyTransaction, IIndexTransaction, IIntegerArrayTransaction, ILongArrayTransaction, IMeasureHierarchyTransaction, IRecordIndexTransaction, IRecordSetTransaction, ISecondaryRecordIndexTransaction, IStorePartitionTransaction, IStoreTransaction, IUniqueRecordIndexTransaction

All Known Implementing Classes:

AAggregateProviderTransaction, AConcreteReferenceTransaction, ActivePivotTransaction, AggregateProviderHolderTransaction, AGlobalAggregateProviderTransaction, AHierarchyTransaction, AIndexedAggregateProviderTransaction, AIndexedPartitionedAggregateProviderTransaction, AMultiVersionAxisHierarchy.AxisHierarchyTransaction, APartitionedAggregateProviderTransaction, ARecordSetTransaction, AUniqueRecordIndexTransaction, BitmapAggregateProviderTransaction, BitmapPartitionedAggregateProviderTransaction, ColumnarRecordSetTransaction, CubeTransaction, DatastoreStructuralTransaction, DistributedActivePivotTransaction, DistributedAxisHierarchyTransaction, DistributedMeasureHierarchyTransaction, FencedColumnarRecordSetTransaction, IntegerArrayTransaction, LazyDeleteLinkedIndexTransaction, LeafAggregateProviderTransaction, LeafPartitionedAggregateProviderTransaction, LongArrayTransaction, MeasureHierarchyTransaction, SecondaryRecordIndexTransaction, StorePartitionTransaction, StoreTransaction

public interface ITransaction

A transaction on a versioned Object.

Author:

ActiveViam

Method Summary

Modifier and Type	Method	Description
void	commit(IEpoch epoch)	Commits this transaction into the base version.
boolean	isEmpty()	Returns whether this transaction does not have any transient data to commit.
void	prepareCommit(IEpoch epoch)	Prepares this transaction for committing.
void	rollback()	Rolls the transaction back.

Method Detail

isEmpty

boolean isEmpty()

Returns whether this transaction does not have any transient data to commit.

Returns:

true if this transaction does not have any transient data to commit, false otherwise

prepareCommit

void prepareCommit(IEpoch epoch)

Prepares this transaction for committing.

Parameters:

epoch - the commit's epoch

commit

void commit(IEpoch epoch)

Commits this transaction into the base version.

Parameters:

epoch - the commit's epoch

rollback

void rollback()

Rolls the transaction back.

This transaction object cannot be re-used after being rolled back.