Class LcsIndexAggRel

  extended by org.eigenbase.rel.AbstractRelNode
      extended by org.eigenbase.rel.SingleRel
          extended by org.eigenbase.rel.AggregateRelBase
              extended by net.sf.farrago.fennel.rel.FennelAggRel
                  extended by com.lucidera.lcs.LcsIndexAggRel
All Implemented Interfaces:
Cloneable, FennelRel, RelNode

public class LcsIndexAggRel
extends FennelAggRel

An aggregate on bitmap data.

$Id: //open/dev/farrago/src/com/lucidera/lcs/ $
John Pham

Nested Class Summary
Nested classes/interfaces inherited from class org.eigenbase.rel.AggregateRelBase
Field Summary
Fields inherited from class net.sf.farrago.fennel.rel.FennelAggRel
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
Fields inherited from interface org.eigenbase.rel.RelNode
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


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

cluster -
child -
groupCount -
aggCalls -
Method Detail


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(...);
         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
clone in class FennelAggRel
a clone of this RelNode


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
toStreamDef in class FennelAggRel
implementor - for generating Java code
generated FemExecutionStreamDef