org.eigenbase.rex
Class RexOver.Finder

java.lang.Object
  org.eigenbase.rex.RexVisitorImpl<Void>
      org.eigenbase.rex.RexOver.Finder

All Implemented Interfaces:

RexVisitor<Void>

Enclosing class:

RexOver

private static class RexOver.Finder
extends RexVisitorImpl<Void>

Visitor which detects a RexOver inside a RexNode expression.

It is re-entrant (two threads can use an instance at the same time) and it can be re-used for multiple visits.

Field Summary

(package private) static RexOver.Finder

instance

Fields inherited from class org.eigenbase.rex.RexVisitorImpl

deep

Constructor Summary

RexOver.Finder()

Method Summary

(package private) boolean	containsOver(RexNode expr) Returns whether an expression contains an OVER clause.
Void	visitOver(RexOver over)

Methods inherited from class org.eigenbase.rex.RexVisitorImpl

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

Methods inherited from class java.lang.Object

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

Field Detail

instance

static final RexOver.Finder instance

Constructor Detail

RexOver.Finder

public RexOver.Finder()

Method Detail

visitOver

public Void visitOver(RexOver over)

Specified by:

visitOver in interface RexVisitor<Void>

Overrides:

visitOver in class RexVisitorImpl<Void>

containsOver

boolean containsOver(RexNode expr)

Returns whether an expression contains an OVER clause.