Package org.apache.ignite.internal.persistence.wal

Interface WalManager

All Known Implementing Classes:

WalManagerImpl

public interface WalManager

Write-ahead log manager.

Method Summary

Modifier and Type	Method	Description
void	finishCheckpoint()	Finishes a checkpoint.
void	finishLogicalOperations(OperationExecutor logicalOperationExecutor, OperationSerializer logicalOperationSerializer)	Finishes interrupted logical operations.
boolean	isLastCheckpointInterrupted()	Checks if the last checkpoint was interrupted.
void	logicalOperation(Object descriptor, OperationSerializer logicalOperationSerializer)	Logs logical operation.
void	physicalOperation(PhysicalOperationDescriptor descriptor)	Logs physical operation.
long	size()	Gets size.
void	start()	Starts the log manager.
void	startCheckpoint()	Starts a checkpoint.
void	stop(boolean onError)	Stops the log manager.

Method Details

startCheckpoint

void startCheckpoint()
              throws IgniteCheckedException

Starts a checkpoint.

Throws:

IgniteCheckedException - in case of a failure.

finishCheckpoint

void finishCheckpoint()
               throws IgniteCheckedException

Finishes a checkpoint.

Throws:

IgniteCheckedException - in case of a failure.

isLastCheckpointInterrupted

boolean isLastCheckpointInterrupted()
                             throws IgniteCheckedException

Checks if the last checkpoint was interrupted.

Returns:

true if the last checkpoint was interrupted, false otherwise.

Throws:

IgniteCheckedException - in case of a failure.

logicalOperation

void logicalOperation(Object descriptor,
 OperationSerializer logicalOperationSerializer)
               throws IgniteCheckedException

Logs logical operation.

Parameters:

descriptor - The descriptor of the operation. May not be null.

logicalOperationSerializer - The logical operation serializer. May not be null.

Throws:

IgniteCheckedException - in case of a failure.

physicalOperation

void physicalOperation(PhysicalOperationDescriptor descriptor)
                throws IgniteCheckedException

Logs physical operation.

Parameters:

descriptor - The descriptor of the operation. May not be null.

Throws:

IgniteCheckedException - in case of a failure.

finishLogicalOperations

void finishLogicalOperations(OperationExecutor logicalOperationExecutor,
 OperationSerializer logicalOperationSerializer)
                      throws IgniteCheckedException

Finishes interrupted logical operations.

Parameters:

logicalOperationExecutor - The logical operation executor. May not be null.

logicalOperationSerializer - The logical operation serializer. May not be null.

Throws:

IgniteCheckedException - in case of a failure.

size

long size()
   throws IgniteCheckedException

Gets size.

Returns:

Size in bytes.

Throws:

IgniteCheckedException - in case of a failure.

start

void start()
    throws IgniteCheckedException

Starts the log manager.

Throws:

IgniteCheckedException - in case of a failure.

stop

void stop(boolean onError)

Stops the log manager.

Parameters:

onError - The flag indicating whether closing was requested on error.

Throws:

IgniteCheckedException - in case of a failure.