Package org.apache.calcite.rel.rules

Class CalcRelSplitter.MaxInputFinder

java.lang.Object

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

org.apache.calcite.rel.rules.CalcRelSplitter.MaxInputFinder

All Implemented Interfaces:

RexVisitor<java.lang.Void>

Enclosing class:

CalcRelSplitter

private static class CalcRelSplitter.MaxInputFinder
extends RexVisitorImpl<java.lang.Void>

Finds the highest level used by any of the inputs of a given expression.

Field Summary

Fields

Modifier and Type	Field	Description
private int[]	exprLevels
(package private) int	level

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

deep

Constructor Summary

Constructors

Constructor	Description
MaxInputFinder(int[] exprLevels)

Method Summary

Modifier and Type	Method	Description
int	maxInputFor(RexNode expr)	Returns the highest level of any of the inputs of an expression.
java.lang.Void	visitLocalRef(RexLocalRef localRef)

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

visitArrayAnd, visitArrayOr, visitCall, visitCorrelVariable, visitDynamicParam, visitFieldAccess, visitInputRef, visitLiteral, 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

level

int level

exprLevels

private final int[] exprLevels

Constructor Detail

MaxInputFinder

MaxInputFinder(int[] exprLevels)

Method Detail

visitLocalRef

public java.lang.Void visitLocalRef(RexLocalRef localRef)

Specified by:

visitLocalRef in interface RexVisitor<java.lang.Void>

Overrides:

visitLocalRef in class RexVisitorImpl<java.lang.Void>

maxInputFor

public int maxInputFor(RexNode expr)

Returns the highest level of any of the inputs of an expression.