com.lucidera.lcs
Class LcsIndexAggRel

java.lang.Object
  org.eigenbase.rel.AbstractRelNode
      org.eigenbase.rel.SingleRel
          org.eigenbase.rel.AggregateRelBase
              net.sf.farrago.fennel.rel.FennelAggRel
                  com.lucidera.lcs.LcsIndexAggRel

All Implemented Interfaces:

Cloneable, FennelRel, RelNode

public class LcsIndexAggRel
extends FennelAggRel

An aggregate on bitmap data.

Version:

$Id: //open/dev/farrago/src/com/lucidera/lcs/LcsIndexAggRel.java#12 $

Author:

John Pham

Nested Class Summary

Nested classes/interfaces inherited from class org.eigenbase.rel.AggregateRelBase

AggregateRelBase.AggCallBinding

Field Summary

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

repos

Fields inherited from class org.eigenbase.rel.AggregateRelBase

aggCalls, groupCount

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

LcsIndexAggRel(RelOptCluster cluster, RelNode child, int groupCount, List<AggregateCall> aggCalls)
Creates an LcsIndexAggRel.

Method Summary

LcsIndexAggRel	clone() Clones this RelNode.
FemExecutionStreamDef	toStreamDef(FennelRelImplementor implementor) Converts this relational expression to FemExecutionStreamDef form.

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

getCollations, implementFennelChild

Methods inherited from class org.eigenbase.rel.AggregateRelBase

computeSelfCost, containsDistinctCall, deriveRowType, explain, getAggCallList, getGroupCount, getRows, isDistinct

Methods inherited from class org.eigenbase.rel.SingleRel

childrenAccept, getChild, getInputs, replaceInput

Methods inherited from class org.eigenbase.rel.AbstractRelNode

cloneTraits, collectVariablesSet, collectVariablesUsed, computeDigest, getChildExps, getCluster, getCollationList, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getOrCreateCorrelVariable, getQuery, getRelTypeName, getRowType, getTable, getTraits, getVariablesStopped, inheritTraitsFrom, isAccessTo, 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 org.eigenbase.rel.RelNode

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

Constructor Detail

LcsIndexAggRel

public LcsIndexAggRel(RelOptCluster cluster,
                      RelNode child,
                      int groupCount,
                      List<AggregateCall> aggCalls)

Creates an LcsIndexAggRel.

Parameters:

cluster -

child -

groupCount -

aggCalls -

Method Detail

clone

public LcsIndexAggRel clone()

Description copied from interface: RelNode

Clones this RelNode.

Traits of the RelNode must be explicitly cloned, using AbstractRelNode.inheritTraitsFrom(AbstractRelNode), as the RelNode may have traits of which it has no knowledge. Example implementation:

     public MyRelNode clone()
     {
         MyRelNode clone = new MyRelNode(...);
         clone.inheritTraitsFrom(this);
         return clone;
     }
 

N.B.: This method must be overridden whenever an existing, concrete RelNode is extended. Otherwise, calling clone() will produce a differently typed RelNode, resulting in invalid or incorrect query plans.

Specified by:

clone in interface RelNode

Overrides:

clone in class FennelAggRel

Returns:

a clone of this RelNode

toStreamDef

public FemExecutionStreamDef toStreamDef(FennelRelImplementor implementor)

Description copied from interface: FennelRel

Converts this relational expression to FemExecutionStreamDef form. In the process, the relational expression will almost certainly call FennelRelImplementor.visitFennelChild(net.sf.farrago.query.FennelRel, int) on each of its children.

Specified by:

toStreamDef in interface FennelRel

Overrides:

toStreamDef in class FennelAggRel

Parameters:

implementor - for generating Java code

Returns:

generated FemExecutionStreamDef