org.apache.drill.exec.physical.impl.join

Class MergeJoinBatch

java.lang.Object

org.apache.drill.exec.record.AbstractRecordBatch<T>

org.apache.drill.exec.record.AbstractBinaryRecordBatch<MergeJoinPOP>

org.apache.drill.exec.physical.impl.join.MergeJoinBatch

All Implemented Interfaces:

AutoCloseable, Iterable<VectorWrapper<?>>, CloseableRecordBatch, RecordBatch, VectorAccessible

public class MergeJoinBatch
extends AbstractBinaryRecordBatch<MergeJoinPOP>

A join operator that merges two sorted streams using a record iterator.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.drill.exec.record.AbstractBinaryRecordBatch

AbstractBinaryRecordBatch.Metric

Nested classes/interfaces inherited from class org.apache.drill.exec.record.AbstractRecordBatch

AbstractRecordBatch.BatchState

Nested classes/interfaces inherited from interface org.apache.drill.exec.record.RecordBatch

RecordBatch.IterOutcome

Field Summary

Fields inherited from class org.apache.drill.exec.record.AbstractBinaryRecordBatch

batchMemoryManager, left, LEFT_INDEX, leftUpstream, numInputs, right, RIGHT_INDEX, rightUpstream

Fields inherited from class org.apache.drill.exec.record.AbstractRecordBatch

batchStatsContext, container, context, oContext, popConfig, state, stats, unionTypeEnabled

Fields inherited from interface org.apache.drill.exec.record.RecordBatch

MAX_BATCH_ROW_COUNT

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	MergeJoinBatch(MergeJoinPOP popConfig, FragmentContext context, RecordBatch left, RecordBatch right)

Method Summary

Modifier and Type	Method and Description
void	buildSchema()
void	close()
void	dump() Perform dump of this batch's state to logs.
org.apache.calcite.rel.core.JoinRelType	getJoinType()
int	getRecordCount() Get the number of records.
RecordBatch.IterOutcome	innerNext()

Methods inherited from class org.apache.drill.exec.record.AbstractBinaryRecordBatch

cancelIncoming, checkForEarlyFinish, getBatchMemoryManager, prefetchFirstBatchFromBothSides, updateBatchMemoryManagerStats, verifyOutcomeToSetBatchState

Methods inherited from class org.apache.drill.exec.record.AbstractRecordBatch

cancel, checkContinue, getContainer, getContext, getOutgoingContainer, getPopConfig, getRecordBatchStatsContext, getSchema, getSelectionVector2, getSelectionVector4, getValueAccessorById, getValueVectorId, getWritableBatch, isRecordBatchStatsLoggingEnabled, iterator, next, next, next, schemaChangeException, schemaChangeException

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

MergeJoinBatch

protected MergeJoinBatch(MergeJoinPOP popConfig,
                         FragmentContext context,
                         RecordBatch left,
                         RecordBatch right)
                  throws OutOfMemoryException

Throws:

OutOfMemoryException

Method Detail

getJoinType

public org.apache.calcite.rel.core.JoinRelType getJoinType()

getRecordCount

public int getRecordCount()

Description copied from interface: VectorAccessible

Get the number of records.

Returns:

number of records

buildSchema

public void buildSchema()

Overrides:

buildSchema in class AbstractRecordBatch<MergeJoinPOP>

innerNext

public RecordBatch.IterOutcome innerNext()

Specified by:

innerNext in class AbstractRecordBatch<MergeJoinPOP>

close

public void close()

Specified by:

close in interface AutoCloseable

Overrides:

close in class AbstractRecordBatch<MergeJoinPOP>

dump

public void dump()

Description copied from interface: RecordBatch

Perform dump of this batch's state to logs.