WriteAheadLog

open class WriteAheadLog

WAL shared between StoreWAL

Types

WALReplay interface WALReplay

Constructors

<init> WriteAheadLog(fileName: String, volumeFactory: VolumeFactory, featureBitMap: Long, fileDeleteAfterOpen: Boolean)
WriteAheadLog(fileName: String)

Properties

NOREPLAY

static val NOREPLAY: WALReplay

does nothing

Functions

close	`open fun close(): Unit`
commit	`open fun commit(): Unit`
destroyWalFiles	`open fun destroyWalFiles(): Unit`
fileLoad	`open fun fileLoad(): Boolean`
getAllFiles	`open fun getAllFiles(): MutableIterable<String>`
getNumberOfFiles	`open fun getNumberOfFiles(): Long`
initFailedCloseFiles	`open fun initFailedCloseFiles(): Unit`
replayWAL	`open fun replayWAL(replay: WALReplay): Unit`
rollback	`open fun rollback(): Unit`
seal	`open fun seal(): Unit`
startNextFile	`open fun startNextFile(): Unit`
sync	`open fun sync(): Unit`
walGetByteArray	`open fun walGetByteArray(walPointer: Long): DataInput2` Retrieve `DataInput` from WAL. This data were written by `WriteAheadLog#walPutByteArray(long, byte[], int, int)`
walGetByteArray2	`open fun walGetByteArray2(walPointer: Long): ByteArray` Retrieve `byte[]` from WAL. This data were written by `WriteAheadLog#walPutByteArray(long, byte[], int, int)`
walGetRecord	`open fun walGetRecord(walPointer: Long, expectedRecid: Long): ByteArray`
walPutByteArray	`open fun walPutByteArray(offset: Long, buf: ByteArray, bufPos: Int, size: Int): Long` Puts instruction into WAL. It should write part of `byte[]` at given offset. This value returns pointer to WAL, which can be used to retrieve data back with `WriteAheadLog#walGetByteArray(long)`. Pointer is composed of file number, and offset in WAL file.
walPutLong	`open fun walPutLong(offset: Long, value: Long): Unit` Put 8 byte long into WAL.
walPutPreallocate	`open fun walPutPreallocate(recid: Long): Unit`
walPutRecord	`open fun walPutRecord(recid: Long, buf: ByteArray, bufPos: Int, size: Int): Long`
walPutTombstone	`open fun walPutTombstone(recid: Long): Unit`