org.apache.calcite.plan

Class RelOptUtil.VariableUsedVisitor

java.lang.Object

org.apache.calcite.rex.RexShuttle

org.apache.calcite.plan.RelOptUtil.VariableUsedVisitor

All Implemented Interfaces:

RexVisitor<RexNode>

Enclosing class:

RelOptUtil

public static class RelOptUtil.VariableUsedVisitor
extends RexShuttle

Visitor that finds all variables used in an expression.

Field Summary

Fields

Modifier and Type	Field and Description
Set<String>	variables

Constructor Summary

Constructors

Constructor and Description
RelOptUtil.VariableUsedVisitor()

Method Summary

Methods

Modifier and Type	Method and Description
RexNode	visitCorrelVariable(RexCorrelVariable p)

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

apply, apply, apply, mutate, visitArray, visitCall, visitDynamicParam, visitFieldAccess, visitFieldCollations, visitInputRef, visitList, visitList, visitLiteral, visitLocalRef, visitOver, visitRangeRef, visitWindow

Methods inherited from class java.lang.Object

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

Field Detail

variables

public final Set<String> variables

Constructor Detail

RelOptUtil.VariableUsedVisitor

public RelOptUtil.VariableUsedVisitor()

Method Detail

visitCorrelVariable

public RexNode visitCorrelVariable(RexCorrelVariable p)

Specified by:

visitCorrelVariable in interface RexVisitor<RexNode>

Overrides:

visitCorrelVariable in class RexShuttle