org.eigenbase.relopt.volcano
Class VolcanoPlannerTraitTest.AltTraitConverter

java.lang.Object
  org.eigenbase.rel.AbstractRelNode
      org.eigenbase.rel.SingleRel
          org.eigenbase.rel.convert.ConverterRelImpl
              org.eigenbase.relopt.volcano.VolcanoPlannerTraitTest.AltTraitConverter

All Implemented Interfaces:

Cloneable, ConverterRel, RelNode

Enclosing class:

VolcanoPlannerTraitTest

private static class VolcanoPlannerTraitTest.AltTraitConverter
extends ConverterRelImpl

Field Summary

private RelTrait

toTrait

Fields inherited from class org.eigenbase.rel.convert.ConverterRelImpl

inTraits, traitDef

Fields inherited from class org.eigenbase.rel.AbstractRelNode

digest, id, rowType, traits

Fields inherited from interface org.eigenbase.rel.RelNode

emptyArray

Constructor Summary

private

VolcanoPlannerTraitTest.AltTraitConverter(RelOptCluster cluster, RelNode child, RelTrait toTrait)

Method Summary

VolcanoPlannerTraitTest.AltTraitConverter

clone() Clones this RelNode.

Methods inherited from class org.eigenbase.rel.convert.ConverterRelImpl

cannotImplement, computeSelfCost, convertTraits, getInputConvention, getInputTraits, getTraitDef, isDistinct

Methods inherited from class org.eigenbase.rel.SingleRel

childrenAccept, deriveRowType, explain, getChild, getInputs, getRows, 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.convert.ConverterRel

getChild

Methods inherited from interface org.eigenbase.rel.RelNode

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

Field Detail

toTrait

private final RelTrait toTrait

Constructor Detail

VolcanoPlannerTraitTest.AltTraitConverter

private VolcanoPlannerTraitTest.AltTraitConverter(RelOptCluster cluster,
                                                  RelNode child,
                                                  RelTrait toTrait)

Method Detail

clone

public VolcanoPlannerTraitTest.AltTraitConverter 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

Specified by:

clone in class AbstractRelNode

Returns:

a clone of this RelNode