net.sf.farrago.fennel.rel
Class FennelOneRowRule

java.lang.Object
  org.eigenbase.relopt.RelOptRule
      org.eigenbase.rel.convert.ConverterRule
          net.sf.farrago.fennel.rel.FennelOneRowRule

public class FennelOneRowRule
extends ConverterRule

FennelOneRowRule provides an implementation for OneRowRel in terms of FennelValuesRel.

Since:

Feb 4, 2005

Version:

$Id: //open/dev/farrago/src/net/sf/farrago/fennel/rel/FennelOneRowRule.java#3 $

Author:

Wael Chatila

Field Summary

static FennelOneRowRule

instance

Fields inherited from class org.eigenbase.relopt.RelOptRule

ANY, description, operands

Constructor Summary

private

FennelOneRowRule() Creates a FennelOneRowRule.

Method Summary

RelNode

convert(RelNode rel)

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

getInTrait, getOutConvention, getOutTrait, getTraitDef, isGuaranteed, onMatch

Methods inherited from class org.eigenbase.relopt.RelOptRule

convert, equals, equals, getOperand, getOperands, hashCode, matches, mergeTraitsAndConvert, mergeTraitsAndConvert, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

instance

public static final FennelOneRowRule instance

Constructor Detail

FennelOneRowRule

private FennelOneRowRule()

Creates a FennelOneRowRule.

Method Detail

convert

public RelNode convert(RelNode rel)

Specified by:

convert in class ConverterRule