org.apache.calcite.rel.rules

Class ReduceExpressionsRule.ReducibleExprLocator

java.lang.Object

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

org.apache.calcite.rel.rules.ReduceExpressionsRule.ReducibleExprLocator

All Implemented Interfaces:

RexVisitor<Void>

Enclosing class:

ReduceExpressionsRule<C extends ReduceExpressionsRule.Config>

protected static class ReduceExpressionsRule.ReducibleExprLocator
extends RexVisitorImpl<Void>

Helper class used to locate expressions that either can be reduced to literals or contain redundant casts.

Field Summary

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

deep

Method Summary

Modifier and Type	Method and Description
void	analyze(RexNode exp)
Void	visitCall(RexCall call)
Void	visitCorrelVariable(RexCorrelVariable variable)
Void	visitDynamicParam(RexDynamicParam dynamicParam)
Void	visitFieldAccess(RexFieldAccess fieldAccess)
Void	visitInputRef(RexInputRef inputRef)
Void	visitLiteral(RexLiteral literal)
Void	visitOver(RexOver over)
Void	visitRangeRef(RexRangeRef rangeRef)
Void	visitSubQuery(RexSubQuery subQuery)

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

visitArrayAnd, visitArrayOr, visitLocalRef, visitPatternFieldRef, visitTableInputRef

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.calcite.rex.RexVisitor

visitEach, visitList, visitList

Method Detail

analyze

public void analyze(RexNode exp)

visitInputRef

public Void visitInputRef(RexInputRef inputRef)

Specified by:

visitInputRef in interface RexVisitor<Void>

Overrides:

visitInputRef in class RexVisitorImpl<Void>

visitLiteral

public Void visitLiteral(RexLiteral literal)

Specified by:

visitLiteral in interface RexVisitor<Void>

Overrides:

visitLiteral in class RexVisitorImpl<Void>

visitOver

public Void visitOver(RexOver over)

Specified by:

visitOver in interface RexVisitor<Void>

Overrides:

visitOver in class RexVisitorImpl<Void>

visitCorrelVariable

public Void visitCorrelVariable(RexCorrelVariable variable)

Specified by:

visitCorrelVariable in interface RexVisitor<Void>

Overrides:

visitCorrelVariable in class RexVisitorImpl<Void>

visitCall

public Void visitCall(RexCall call)

Specified by:

visitCall in interface RexVisitor<Void>

Overrides:

visitCall in class RexVisitorImpl<Void>

visitSubQuery

public Void visitSubQuery(RexSubQuery subQuery)

Specified by:

visitSubQuery in interface RexVisitor<Void>

Overrides:

visitSubQuery in class RexVisitorImpl<Void>

visitDynamicParam

public Void visitDynamicParam(RexDynamicParam dynamicParam)

Specified by:

visitDynamicParam in interface RexVisitor<Void>

Overrides:

visitDynamicParam in class RexVisitorImpl<Void>

visitRangeRef

public Void visitRangeRef(RexRangeRef rangeRef)

Specified by:

visitRangeRef in interface RexVisitor<Void>

Overrides:

visitRangeRef in class RexVisitorImpl<Void>

visitFieldAccess

public Void visitFieldAccess(RexFieldAccess fieldAccess)

Specified by:

visitFieldAccess in interface RexVisitor<Void>

Overrides:

visitFieldAccess in class RexVisitorImpl<Void>