Package org.apache.ignite.internal.processors.cache.persistence.wal.filehandle

Interface FileHandleManager

All Known Implementing Classes:

FileHandleManagerImpl, FsyncFileHandleManagerImpl

public interface FileHandleManager

Manager of FileWriteHandle.

Method Summary

Modifier and Type	Method	Description
WALPointer	flush(WALPointer ptr, boolean explicitFsync)
FileWriteHandle	initHandle(SegmentIO fileIO, long position, RecordSerializer serializer)	Initialize FileWriteHandle for first time.
FileWriteHandle	nextHandle(SegmentIO fileIO, RecordSerializer serializer)	Create next file handle.
void	onDeactivate()	On deactivate.
void	resumeLogging()	Resume logging.

Method Detail

initHandle

FileWriteHandle initHandle(SegmentIO fileIO,
                           long position,
                           RecordSerializer serializer)
                    throws IOException

Initialize FileWriteHandle for first time.

Parameters:

fileIO - FileIO.

position - Init position.

serializer - Serializer for file handle.

Returns:

Created file handle.

Throws:

IOException - if creation was not success.

nextHandle

FileWriteHandle nextHandle(SegmentIO fileIO,
                           RecordSerializer serializer)
                    throws IOException

Create next file handle.

Parameters:

fileIO - FileIO.

serializer - Serializer for file handle.

Returns:

Created file handle.

Throws:

IOException - if creation was not success.

onDeactivate

void onDeactivate()
           throws IgniteCheckedException

On deactivate.

Throws:

IgniteCheckedException - if fail.

resumeLogging

void resumeLogging()

Resume logging.

flush

WALPointer flush(WALPointer ptr,
                 boolean explicitFsync)
          throws IgniteCheckedException,
                 StorageException

Parameters:

ptr - Pointer until need to flush.

explicitFsync - true if fsync required.

Returns:

Last WAL position which was flushed to WAL segment file. May be greater than or equal to a ptr. May be null, it means nothing has been flushed.

Throws:

IgniteCheckedException - if fail.

StorageException - if storage was fail.