net.sf.farrago.fennel.rel
Class FennelWindowRel.RexWinAggCall

java.lang.Object
  org.eigenbase.rex.RexNode
      org.eigenbase.rex.RexCall
          net.sf.farrago.fennel.rel.FennelWindowRel.RexWinAggCall

Enclosing class:

FennelWindowRel

public static class FennelWindowRel.RexWinAggCall
extends RexCall

A call to a windowed aggregate function.

Belongs to a FennelWindowRel.Partition.

It's a bastard son of a RexCall; similar enough that it gets visited by a RexVisitor, but it also has some extra data members.

Field Summary

int	ordinal Ordinal of this aggregate within its partition.

Fields inherited from class org.eigenbase.rex.RexCall

operands

Fields inherited from class org.eigenbase.rex.RexNode

digest, EMPTY_ARRAY

Constructor Summary

FennelWindowRel.RexWinAggCall(SqlAggFunction aggFun, RelDataType type, RexNode[] operands, int ordinal)
Creates a RexWinAggCall.

Method Summary

Methods inherited from class org.eigenbase.rex.RexCall

accept, clone, clone, computeDigest, getKind, getOperands, getOperator, getType, toString

Methods inherited from class org.eigenbase.rex.RexNode

isA, isAlwaysTrue

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

ordinal

public final int ordinal

Ordinal of this aggregate within its partition.

Constructor Detail

FennelWindowRel.RexWinAggCall

public FennelWindowRel.RexWinAggCall(SqlAggFunction aggFun,
                                     RelDataType type,
                                     RexNode[] operands,
                                     int ordinal)

Creates a RexWinAggCall.

Parameters:

aggFun - Aggregate function

type - Result type

operands - Operands to call

ordinal - Ordinal within its partition