org.apache.calcite.rel.rules

Class JoinToMultiJoinRule.InputReferenceCounter

java.lang.Object

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

org.apache.calcite.rel.rules.JoinToMultiJoinRule.InputReferenceCounter

All Implemented Interfaces:

RexVisitor<Void>

Enclosing class:

JoinToMultiJoinRule

private class JoinToMultiJoinRule.InputReferenceCounter
extends RexVisitorImpl<Void>

Visitor that keeps a reference count of the inputs used by an expression.

Field Summary

Fields

Modifier and Type	Field and Description
private int[]	refCounts

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

deep

Constructor Summary

Constructors

Constructor and Description
InputReferenceCounter(int[] refCounts)

Method Summary

Modifier and Type	Method and Description
Void	visitInputRef(RexInputRef inputRef)

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

visitArrayAnd, visitArrayOr, visitCall, visitCorrelVariable, visitDynamicParam, visitFieldAccess, 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

refCounts

private final int[] refCounts

Constructor Detail

InputReferenceCounter

InputReferenceCounter(int[] refCounts)

Method Detail

visitInputRef

public Void visitInputRef(RexInputRef inputRef)

Specified by:

visitInputRef in interface RexVisitor<Void>

Overrides:

visitInputRef in class RexVisitorImpl<Void>