org.apache.flink.table.runtime.hashtable

类 LongHybridHashTable

java.lang.Object

org.apache.flink.table.runtime.hashtable.BaseHybridHashTable

org.apache.flink.table.runtime.hashtable.LongHybridHashTable

所有已实现的接口:

org.apache.flink.core.memory.MemorySegmentSource, MemorySegmentPool

public abstract class LongHybridHashTable
extends BaseHybridHashTable

Special optimized hashTable with key long.

See LongHashPartition. TODO add min max long filter and bloomFilter to spilled partition.

字段概要

从类继承的字段 org.apache.flink.table.runtime.hashtable.BaseHybridHashTable

availableMemory, buildRowCount, buildSpillRetBufferNumbers, buildSpillReturnBuffers, closed, compressionBlockSize, compressionCodecFactory, compressionEnable, currentEnumerator, currentRecursionDepth, currentSpilledBuildSide, currentSpilledProbeSide, initPartitionFanOut, ioManager, LOG, MAX_NUM_PARTITIONS, MAX_RECURSION_DEPTH, numSpillFiles, segmentSize, segmentSizeBits, segmentSizeMask, spillInBytes, totalNumBuffers, tryDistinctBuildRow

构造器概要

构造器

构造器和说明
LongHybridHashTable(org.apache.flink.configuration.Configuration conf, Object owner, BinaryRowSerializer buildSideSerializer, BinaryRowSerializer probeSideSerializer, org.apache.flink.runtime.memory.MemoryManager memManager, long reservedMemorySize, org.apache.flink.runtime.io.disk.iomanager.IOManager ioManager, int avgRecordLen, long buildRowCount)

方法概要

限定符和类型	方法和说明
protected void	clearPartitions()
void	close() Closes the hash table.
int	compressionBlockSize()
org.apache.flink.runtime.io.compression.BlockCompressionFactory	compressionCodecFactory()
boolean	compressionEnable()
void	endBuild()
void	free()
abstract long	getBuildLongKey(BaseRow row) For code gen get build side long key.
LongHashPartition.MatchIterator	getBuildSideIterator()
BaseRow	getCurrentProbeRow()
abstract long	getProbeLongKey(BaseRow row) For code gen get probe side long key.
boolean	nextMatching()
abstract BinaryRow	probeToBinary(BaseRow row) For code gen probe side to BinaryRow.
void	putBuildRow(BinaryRow row)
int	spillPartition()
boolean	tryProbe(BaseRow record)

从类继承的方法 org.apache.flink.table.runtime.hashtable.BaseHybridHashTable

createInputView, ensureNumBuffersReturned, free, freeCurrent, getFreedMemory, getNextBuffer, getNextBuffers, getNotNullNextBuffer, getNumSpillFiles, getSpillInBytes, getUsedMemoryInBytes, hash, maxInitBufferOfBucketArea, maxNumPartition, nextSegment, pageSize, readAllBuffers, remainBuffers, returnAll

从类继承的方法 java.lang.Object

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

构造器详细资料

LongHybridHashTable

public LongHybridHashTable(org.apache.flink.configuration.Configuration conf,
                           Object owner,
                           BinaryRowSerializer buildSideSerializer,
                           BinaryRowSerializer probeSideSerializer,
                           org.apache.flink.runtime.memory.MemoryManager memManager,
                           long reservedMemorySize,
                           org.apache.flink.runtime.io.disk.iomanager.IOManager ioManager,
                           int avgRecordLen,
                           long buildRowCount)

方法详细资料

putBuildRow

public void putBuildRow(BinaryRow row)
                 throws IOException

抛出:

IOException

endBuild

public void endBuild()
              throws IOException

抛出:

IOException

tryProbe

public boolean tryProbe(BaseRow record)
                 throws IOException

抛出:

IOException

nextMatching

public boolean nextMatching()
                     throws IOException

抛出:

IOException

getCurrentProbeRow

public BaseRow getCurrentProbeRow()

getBuildSideIterator

public LongHashPartition.MatchIterator getBuildSideIterator()

close

public void close()

从类复制的说明: BaseHybridHashTable

Closes the hash table. This effectively releases all internal structures and closes all open files and removes them. The call to this method is valid both as a cleanup after the complete inputs were properly processed, and as an cancellation call, which cleans up all resources that are currently held by the hash join.

覆盖:

close 在类中 BaseHybridHashTable

free

public void free()

覆盖:

free 在类中 BaseHybridHashTable

getBuildLongKey

public abstract long getBuildLongKey(BaseRow row)

For code gen get build side long key.

getProbeLongKey

public abstract long getProbeLongKey(BaseRow row)

For code gen get probe side long key.

probeToBinary

public abstract BinaryRow probeToBinary(BaseRow row)

For code gen probe side to BinaryRow.

spillPartition

public int spillPartition()
                   throws IOException

指定者:

spillPartition 在类中 BaseHybridHashTable

抛出:

IOException

clearPartitions

protected void clearPartitions()

指定者:

clearPartitions 在类中 BaseHybridHashTable

compressionEnable

public boolean compressionEnable()

compressionCodecFactory

public org.apache.flink.runtime.io.compression.BlockCompressionFactory compressionCodecFactory()

compressionBlockSize

public int compressionBlockSize()