org.apache.ignite.internal.processors.cache.transactions

Class IgniteTxHandler

java.lang.Object

org.apache.ignite.internal.processors.cache.transactions.IgniteTxHandler

public class IgniteTxHandler
extends Object

Isolated logic to process cache messages.

Constructor Summary

Constructors

Constructor and Description
IgniteTxHandler(GridCacheSharedContext ctx)

Method Summary

Modifier and Type	Method and Description
void	applyPartitionsUpdatesCounters(Iterable<PartitionUpdateCountersMessage> counters) Applies partition counter updates for transactions.
void	applyPartitionsUpdatesCounters(Iterable<PartitionUpdateCountersMessage> counters, boolean rollback, boolean rollbackOnPrimary) Applies partition counter updates for transactions.
@Nullable List<PartitionUpdateCountersMessage>	filterUpdateCountersForBackupNode(IgniteInternalTx tx, ClusterNode node)
protected void	finish(GridDistributedTxRemoteAdapter tx, GridDhtTxPrepareRequest req) Finish for one-phase distributed tx.
@Nullable IgniteInternalFuture<IgniteInternalTx>	finish(UUID nodeId, @Nullable GridNearTxLocal locTx, GridNearTxFinishRequest req)
protected void	finish(UUID nodeId, IgniteTxRemoteEx tx, GridDhtTxFinishRequest req)
IgniteInternalFuture<IgniteInternalTx>	finishColocatedLocal(boolean commit, GridNearTxLocal tx)
void	mvccEnlistBatch(GridDhtTxRemote tx, GridCacheContext ctx, EnlistOperation op, List<KeyCacheObject> keys, List<Message> vals, MvccSnapshot snapshot, IgniteUuid futId, int batchNum) Writes updated values on the backup node.
IgniteInternalFuture<GridNearTxPrepareResponse>	prepareColocatedTx(GridNearTxLocal locTx, GridNearTxPrepareRequest req) Prepares local colocated tx.
IgniteInternalFuture<GridNearTxPrepareResponse>	prepareNearTxLocal(GridNearTxLocal originTx, GridNearTxPrepareRequest req)
protected void	processCheckPreparedTxResponse(UUID nodeId, GridCacheTxRecoveryResponse res)

Methods inherited from class java.lang.Object

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

Constructor Detail

IgniteTxHandler

public IgniteTxHandler(GridCacheSharedContext ctx)

Parameters:

ctx - Shared cache context.

Method Detail

prepareColocatedTx

public IgniteInternalFuture<GridNearTxPrepareResponse> prepareColocatedTx(GridNearTxLocal locTx,
                                                                          GridNearTxPrepareRequest req)

Prepares local colocated tx.

Parameters:

locTx - Local transaction.

req - Near prepare request.

Returns:

Prepare future.

prepareNearTxLocal

public IgniteInternalFuture<GridNearTxPrepareResponse> prepareNearTxLocal(GridNearTxLocal originTx,
                                                                          GridNearTxPrepareRequest req)

Parameters:

originTx - Transaction for copy.

req - Request.

Returns:

Prepare future.

finish

@Nullable
public @Nullable IgniteInternalFuture<IgniteInternalTx> finish(UUID nodeId,
                                                                         @Nullable
                                                                         @Nullable GridNearTxLocal locTx,
                                                                         GridNearTxFinishRequest req)

Parameters:

nodeId - Node ID.

locTx - Local transaction.

req - Request.

Returns:

Future.

finishColocatedLocal

public IgniteInternalFuture<IgniteInternalTx> finishColocatedLocal(boolean commit,
                                                                   GridNearTxLocal tx)

Parameters:

commit - Commit flag (rollback if false).

tx - Transaction to commit.

Returns:

Future.

finish

protected void finish(UUID nodeId,
                      IgniteTxRemoteEx tx,
                      GridDhtTxFinishRequest req)

Parameters:

nodeId - Node ID.

tx - Transaction.

req - Request.

finish

protected void finish(GridDistributedTxRemoteAdapter tx,
                      GridDhtTxPrepareRequest req)
               throws IgniteTxHeuristicCheckedException

Finish for one-phase distributed tx.

Parameters:

tx - Transaction.

req - Request.

Throws:

IgniteTxHeuristicCheckedException

mvccEnlistBatch

public void mvccEnlistBatch(GridDhtTxRemote tx,
                            GridCacheContext ctx,
                            EnlistOperation op,
                            List<KeyCacheObject> keys,
                            List<Message> vals,
                            MvccSnapshot snapshot,
                            IgniteUuid futId,
                            int batchNum)
                     throws IgniteCheckedException

Writes updated values on the backup node.

Parameters:

tx - Transaction.

ctx - Cache context.

op - Operation.

keys - Keys.

vals - Values sent from the primary node.

snapshot - Mvcc snapshot.

batchNum - Batch number.

futId - Future id.

Throws:

IgniteCheckedException - If failed.

processCheckPreparedTxResponse

protected void processCheckPreparedTxResponse(UUID nodeId,
                                              GridCacheTxRecoveryResponse res)

Parameters:

nodeId - Node ID.

res - Response.

applyPartitionsUpdatesCounters

public void applyPartitionsUpdatesCounters(Iterable<PartitionUpdateCountersMessage> counters)
                                    throws IgniteCheckedException

Applies partition counter updates for transactions.

Called after entries are written to WAL on commit or during rollback to close gaps in update counter sequence.

Parameters:

counters - Counters.

Throws:

IgniteCheckedException

applyPartitionsUpdatesCounters

public void applyPartitionsUpdatesCounters(Iterable<PartitionUpdateCountersMessage> counters,
                                           boolean rollback,
                                           boolean rollbackOnPrimary)
                                    throws IgniteCheckedException

Applies partition counter updates for transactions.

Called after entries are written to WAL on commit or during rollback to close gaps in update counter sequence.

On rollback counters should be applied on the primary only after backup nodes, otherwise if the primary fail before sending rollback requests to backups remote transactions can be committed by recovery protocol and partition consistency will not be restored when primary returns to the grid because RollbackRecord was written (actual for persistent mode only).

Parameters:

counters - Counter values to be updated.

rollback - True if applied during rollbacks.

rollbackOnPrimary - True if rollback happens on primary node. Passed to CQ engine.

Throws:

IgniteCheckedException

filterUpdateCountersForBackupNode

@Nullable
public @Nullable List<PartitionUpdateCountersMessage> filterUpdateCountersForBackupNode(IgniteInternalTx tx,
                                                                                                  ClusterNode node)

Parameters:

tx - Transaction.

node - Backup node.

Returns:

Partition counters for the given backup node.