io.prestosql.operator

Class JoinOperatorInfo

java.lang.Object

io.prestosql.operator.JoinOperatorInfo

All Implemented Interfaces:

OperatorInfo, Mergeable<JoinOperatorInfo>

public class JoinOperatorInfo
extends Object
implements Mergeable<JoinOperatorInfo>, OperatorInfo

Constructor Summary

Constructors

Constructor and Description
JoinOperatorInfo(LookupJoinOperators.JoinType joinType, long[] logHistogramProbes, long[] logHistogramOutput, Optional<Long> lookupSourcePositions)

Method Summary

Modifier and Type	Method and Description
static JoinOperatorInfo	createJoinOperatorInfo(LookupJoinOperators.JoinType joinType, long[] logHistogramCounters, Optional<Long> lookupSourcePositions)
LookupJoinOperators.JoinType	getJoinType()
long[]	getLogHistogramOutput()
long[]	getLogHistogramProbes()
Optional<Long>	getLookupSourcePositions() Estimated number of positions in on the build side
boolean	isFinal()
JoinOperatorInfo	mergeWith(JoinOperatorInfo other) Merges the current state with the state of the other instance, and returns the merged state.
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.prestosql.util.Mergeable

merge

Constructor Detail

JoinOperatorInfo

public JoinOperatorInfo(LookupJoinOperators.JoinType joinType,
                        long[] logHistogramProbes,
                        long[] logHistogramOutput,
                        Optional<Long> lookupSourcePositions)

Method Detail

createJoinOperatorInfo

public static JoinOperatorInfo createJoinOperatorInfo(LookupJoinOperators.JoinType joinType,
                                                      long[] logHistogramCounters,
                                                      Optional<Long> lookupSourcePositions)

getJoinType

public LookupJoinOperators.JoinType getJoinType()

getLogHistogramProbes

public long[] getLogHistogramProbes()

getLogHistogramOutput

public long[] getLogHistogramOutput()

getLookupSourcePositions

public Optional<Long> getLookupSourcePositions()

Estimated number of positions in on the build side

toString

public String toString()

Overrides:

toString in class Object

mergeWith

public JoinOperatorInfo mergeWith(JoinOperatorInfo other)

Description copied from interface: Mergeable

Merges the current state with the state of the other instance, and returns the merged state.

Specified by:

mergeWith in interface Mergeable<JoinOperatorInfo>

isFinal

public boolean isFinal()

Specified by:

isFinal in interface OperatorInfo

Returns:

true if this OperatorInfo should be collected and sent to the coordinator when the task completes (i.e. it will not be stripped away during summarization).