com.sleepycat.je.cleaner

Class PackedObsoleteInfo

java.lang.Object

java.io.OutputStream

com.sleepycat.util.FastOutputStream

com.sleepycat.bind.tuple.TupleOutput

com.sleepycat.je.cleaner.PackedObsoleteInfo

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public class PackedObsoleteInfo
extends TupleOutput

A sequence of obsolete info. To save memory, a TupleOutput is used to contain a sequence of {LSN-file, LSN-offset} tuples. Packed integers are used and memory is saved by not using an Object for each tuple, as would be needed in a Java collection. An OffsetList was not used because it does not use packed integers. PackedOffsets was not used because it depends on offsets being sorted in ascending order. Only obsolete IN LSNs are supported. LNs are not counted using this approach.

Field Summary

Fields inherited from class com.sleepycat.util.FastOutputStream

DEFAULT_BUMP_SIZE, DEFAULT_INIT_SIZE

Constructor Summary

Constructors

Constructor and Description
PackedObsoleteInfo()

Method Summary

Modifier and Type	Method and Description
void	addObsoleteInfo(long obsoleteLsn)
void	copyObsoleteInfo(PackedObsoleteInfo other)
void	countObsoleteInfo(UtilizationTracker tracker)
int	getMemorySize()

Methods inherited from class com.sleepycat.bind.tuple.TupleOutput

getBigDecimalMaxByteLength, getBigIntegerByteLength, getSortedBigDecimalMaxByteLength, writeBigDecimal, writeBigInteger, writeBoolean, writeByte, writeBytes, writeBytes, writeChar, writeChars, writeChars, writeDouble, writeFloat, writeInt, writeLong, writePackedInt, writePackedLong, writeShort, writeSortedBigDecimal, writeSortedDouble, writeSortedFloat, writeSortedPackedInt, writeSortedPackedLong, writeString, writeString, writeUnsignedByte, writeUnsignedInt, writeUnsignedShort

Methods inherited from class com.sleepycat.util.FastOutputStream

addSize, getBufferBytes, getBufferLength, getBufferOffset, makeSpace, reset, size, toByteArray, toString, toString, write, write, write, writeFast, writeFast, writeFast, writeTo

Methods inherited from class java.io.OutputStream

close, flush

Methods inherited from class java.lang.Object

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

Constructor Detail

PackedObsoleteInfo

public PackedObsoleteInfo()

Method Detail

getMemorySize

public int getMemorySize()

copyObsoleteInfo

public void copyObsoleteInfo(PackedObsoleteInfo other)

addObsoleteInfo

public void addObsoleteInfo(long obsoleteLsn)

countObsoleteInfo

public void countObsoleteInfo(UtilizationTracker tracker)