com.lucidera.lcs
Class LcsIndexBitOpRel

java.lang.Object
  org.eigenbase.rel.AbstractRelNode
      net.sf.farrago.fennel.rel.FennelMultipleRel
          com.lucidera.lcs.LcsIndexBitOpRel

All Implemented Interfaces:

Cloneable, FennelRel, RelNode

Direct Known Subclasses:

LcsIndexIntersectRel, LcsIndexMinusRel

public abstract class LcsIndexBitOpRel
extends FennelMultipleRel

LcsIndexBitOpRel is a base class for implementing bit operation streams with 2 or more inputs

Version:

$Id: //open/dev/farrago/src/com/lucidera/lcs/LcsIndexBitOpRel.java#8 $

Author:

Zelaine Fong

Field Summary

(package private) LcsTable	lcsTable
(package private) FennelRelParamId	rowLimitParamId
(package private) FennelRelParamId	startRidParamId

Fields inherited from class net.sf.farrago.fennel.rel.FennelMultipleRel

inputs

Fields inherited from class org.eigenbase.rel.AbstractRelNode

digest, id, rowType, traits

Fields inherited from interface net.sf.farrago.query.FennelRel

FENNEL_EXEC_CONVENTION

Fields inherited from interface org.eigenbase.rel.RelNode

emptyArray

Constructor Summary

LcsIndexBitOpRel(RelOptCluster cluster, RelNode[] inputs, LcsTable lcsTable, FennelRelParamId startRidParamId, FennelRelParamId rowLimitParamId)

Method Summary

RelOptCost	computeSelfCost(RelOptPlanner planner) Returns the cost of this plan (not including children).
protected RelDataType	deriveRowType()
void	explain(RelOptPlanWriter pw)
FennelRelParamId	getRowLimitParamId()
FennelRelParamId	getStartRidParamId()
protected void	setBitOpChildStreams(FennelRelImplementor implementor, FemLbmBitOpStreamDef bitOpStream) Connects the children input streams to the parent bit operation stream

Methods inherited from class net.sf.farrago.fennel.rel.FennelMultipleRel

getCollations, getFarragoTypeFactory, getInputs, implementFennelChild, replaceInput

Methods inherited from class org.eigenbase.rel.AbstractRelNode

childrenAccept, clone, cloneTraits, collectVariablesSet, collectVariablesUsed, computeDigest, getChildExps, getCluster, getCollationList, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getOrCreateCorrelVariable, getQuery, getRelTypeName, getRows, getRowType, getTable, getTraits, getVariablesStopped, inheritTraitsFrom, isAccessTo, isDistinct, isValid, onRegister, recomputeDigest, register, registerCorrelVariable, setCorrelVariable, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.farrago.query.FennelRel

toStreamDef

Methods inherited from interface org.eigenbase.rel.RelNode

childrenAccept, clone, collectVariablesSet, collectVariablesUsed, getChildExps, getCluster, getCollationList, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getOrCreateCorrelVariable, getQuery, getRelTypeName, getRows, getRowType, getTable, getTraits, getVariablesStopped, isAccessTo, isDistinct, isValid, onRegister, recomputeDigest, registerCorrelVariable, setCorrelVariable

Field Detail

lcsTable

final LcsTable lcsTable

startRidParamId

FennelRelParamId startRidParamId

rowLimitParamId

FennelRelParamId rowLimitParamId

Constructor Detail

LcsIndexBitOpRel

public LcsIndexBitOpRel(RelOptCluster cluster,
                        RelNode[] inputs,
                        LcsTable lcsTable,
                        FennelRelParamId startRidParamId,
                        FennelRelParamId rowLimitParamId)

Method Detail

computeSelfCost

public RelOptCost computeSelfCost(RelOptPlanner planner)

Description copied from interface: RelNode

Returns the cost of this plan (not including children). The base implementation throws an error; derived classes should override.

NOTE jvs 29-Mar-2006: Don't call this method directly. Instead, use RelMetadataQuery.getNonCumulativeCost(org.eigenbase.rel.RelNode), which gives plugins a chance to override the rel's default ideas about cost.

Specified by:

computeSelfCost in interface RelNode

Overrides:

computeSelfCost in class AbstractRelNode

explain

public void explain(RelOptPlanWriter pw)

Specified by:

explain in interface RelNode

Overrides:

explain in class AbstractRelNode

deriveRowType

protected RelDataType deriveRowType()

Overrides:

deriveRowType in class FennelMultipleRel

setBitOpChildStreams

protected void setBitOpChildStreams(FennelRelImplementor implementor,
                                    FemLbmBitOpStreamDef bitOpStream)

Connects the children input streams to the parent bit operation stream

Parameters:

implementor - implementor for the bit operation stream

bitOpStream - the bit operation stream

getStartRidParamId

public FennelRelParamId getStartRidParamId()

getRowLimitParamId

public FennelRelParamId getRowLimitParamId()