org.eigenbase.rel.rules
Class ConvertMultiJoinRule.InputReferenceCounter

java.lang.Object
  org.eigenbase.rex.RexVisitorImpl<Void>
      org.eigenbase.rel.rules.ConvertMultiJoinRule.InputReferenceCounter

All Implemented Interfaces:

RexVisitor<Void>

Enclosing class:

ConvertMultiJoinRule

private class ConvertMultiJoinRule.InputReferenceCounter
extends RexVisitorImpl<Void>

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

Field Summary

private int[]

refCounts

Fields inherited from class org.eigenbase.rex.RexVisitorImpl

deep

Constructor Summary

ConvertMultiJoinRule.InputReferenceCounter(int[] refCounts)

Method Summary

Void	visitInputRef(RexInputRef inputRef)

Methods inherited from class org.eigenbase.rex.RexVisitorImpl

visitArrayAnd, visitArrayOr, visitCall, visitCorrelVariable, visitDynamicParam, visitFieldAccess, visitLiteral, visitLocalRef, visitOver, visitRangeRef

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

ConvertMultiJoinRule.InputReferenceCounter

public ConvertMultiJoinRule.InputReferenceCounter(int[] refCounts)

Method Detail

visitInputRef

public Void visitInputRef(RexInputRef inputRef)

Specified by:

visitInputRef in interface RexVisitor<Void>

Overrides:

visitInputRef in class RexVisitorImpl<Void>