net.sf.farrago.fennel.rel
Class FennelUnionRule

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

public class FennelUnionRule
extends ConverterRule

Rule to convert a UnionRel to Fennel calling convention.

Version:

$Id: //open/dev/farrago/src/net/sf/farrago/fennel/rel/FennelUnionRule.java#1 $

Author:

John V. Sichi

Field Summary

static FennelUnionRule

instance The singleton instance.

Fields inherited from class org.eigenbase.relopt.RelOptRule

ANY, description, operands

Constructor Summary

FennelUnionRule()

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 FennelUnionRule instance

The singleton instance.

Constructor Detail

FennelUnionRule

public FennelUnionRule()

Method Detail

convert

public RelNode convert(RelNode rel)

Specified by:

convert in class ConverterRule