org.eigenbase.rel.convert
Class NoneConverterRel

java.lang.Object
  org.eigenbase.rel.AbstractRelNode
      org.eigenbase.rel.SingleRel
          org.eigenbase.rel.convert.ConverterRelImpl
              org.eigenbase.rel.convert.NoneConverterRel

All Implemented Interfaces:

Cloneable, ConverterRel, RelNode

public class NoneConverterRel
extends ConverterRelImpl

NoneConverter converts a plan from inConvention to CallingConvention.NONE_ORDINAL.

Since:

15 February, 2002

Version:

$Id: //open/dev/farrago/src/org/eigenbase/rel/convert/NoneConverterRel.java#13 $

Author:

jhyde

Field Summary

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

NoneConverterRel(RelOptCluster cluster, RelNode child)

Method Summary

NoneConverterRel	clone() Clones this RelNode.
static void	init(RelOptPlanner planner)

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

Constructor Detail

NoneConverterRel

public NoneConverterRel(RelOptCluster cluster,
                        RelNode child)

Method Detail

clone

public NoneConverterRel 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

init

public static void init(RelOptPlanner planner)