org.apache.calcite.rex

Class RexMultisetUtil.RexCallMultisetOperatorCounter

java.lang.Object

org.apache.calcite.rex.RexVisitorImpl<Void>

org.apache.calcite.rex.RexMultisetUtil.RexCallMultisetOperatorCounter

All Implemented Interfaces:

RexVisitor<Void>

Enclosing class:

RexMultisetUtil

private static class RexMultisetUtil.RexCallMultisetOperatorCounter
extends RexVisitorImpl<Void>

A RexShuttle that traverse all RexNode and counts total number of RexCalls traversed and number of multiset calls traversed.

totalCount ≥ multisetCount always holds true.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) int	multisetCount
(package private) int	totalCount

Fields inherited from class org.apache.calcite.rex.RexVisitorImpl

deep

Constructor Summary

Constructors

Constructor and Description
RexCallMultisetOperatorCounter()

Method Summary

Modifier and Type	Method and Description
(package private) void	reset()
Void	visitCall(RexCall call)

Methods inherited from class org.apache.calcite.rex.RexVisitorImpl

visitArrayAnd, visitArrayOr, visitCorrelVariable, visitDynamicParam, visitFieldAccess, visitInputRef, visitLiteral, visitLocalRef, visitOver, visitPatternFieldRef, visitRangeRef, visitSubQuery, visitTableInputRef

Methods inherited from class java.lang.Object

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

Field Detail

totalCount

int totalCount

multisetCount

int multisetCount

Constructor Detail

RexCallMultisetOperatorCounter

RexCallMultisetOperatorCounter()

Method Detail

reset

void reset()

visitCall

public Void visitCall(RexCall call)

Specified by:

visitCall in interface RexVisitor<Void>

Overrides:

visitCall in class RexVisitorImpl<Void>