Package org.apache.calcite.rel.core

Class Match.PatternVarFinder

java.lang.Object

org.apache.calcite.rex.RexVisitorImpl

org.apache.calcite.rel.core.Match.PatternVarFinder

All Implemented Interfaces:

RexVisitor

Enclosing class:

Match

private static class Match.PatternVarFinder
extends RexVisitorImpl

Visits the operands of an aggregate call to retrieve relevant pattern variables.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) java.util.Set<java.lang.String>	patternVars

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

deep

Constructor Summary

Constructors

Constructor	Description
PatternVarFinder()

Method Summary

Modifier and Type	Method	Description
java.util.Set<java.lang.String>	go(java.util.List<RexNode> rexNodeList)
java.util.Set<java.lang.String>	go(RexNode rex)
java.lang.Object	visitCall(RexCall call)
java.lang.Object	visitPatternFieldRef(RexPatternFieldRef fieldRef)

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

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

Methods inherited from class java.lang.Object

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

Field Detail

patternVars

final java.util.Set<java.lang.String> patternVars

Constructor Detail

PatternVarFinder

PatternVarFinder()

Method Detail

visitPatternFieldRef

public java.lang.Object visitPatternFieldRef(RexPatternFieldRef fieldRef)

Specified by:

visitPatternFieldRef in interface RexVisitor

Overrides:

visitPatternFieldRef in class RexVisitorImpl

visitCall

public java.lang.Object visitCall(RexCall call)

Specified by:

visitCall in interface RexVisitor

Overrides:

visitCall in class RexVisitorImpl

go

public java.util.Set<java.lang.String> go(RexNode rex)

go

public java.util.Set<java.lang.String> go(java.util.List<RexNode> rexNodeList)