org.apache.hadoop.hive.ql.optimizer.calcite

Class HiveCalciteUtil.ConstantFinder

java.lang.Object

org.apache.hadoop.hive.ql.optimizer.calcite.HiveCalciteUtil.ConstantFinder

All Implemented Interfaces:

org.apache.calcite.rex.RexVisitor<Boolean>

Enclosing class:

HiveCalciteUtil

public static class HiveCalciteUtil.ConstantFinder
extends Object
implements org.apache.calcite.rex.RexVisitor<Boolean>

Walks over an expression and determines whether it is constant.

Constructor Summary

Constructors

Constructor and Description
ConstantFinder()

Method Summary

Modifier and Type	Method and Description
Boolean	visitCall(org.apache.calcite.rex.RexCall call)
Boolean	visitCorrelVariable(org.apache.calcite.rex.RexCorrelVariable correlVariable)
Boolean	visitDynamicParam(org.apache.calcite.rex.RexDynamicParam dynamicParam)
Boolean	visitFieldAccess(org.apache.calcite.rex.RexFieldAccess fieldAccess)
Boolean	visitInputRef(org.apache.calcite.rex.RexInputRef inputRef)
Boolean	visitLiteral(org.apache.calcite.rex.RexLiteral literal)
Boolean	visitLocalRef(org.apache.calcite.rex.RexLocalRef localRef)
Boolean	visitOver(org.apache.calcite.rex.RexOver over)
Boolean	visitPatternFieldRef(org.apache.calcite.rex.RexPatternFieldRef fieldRef)
Boolean	visitRangeRef(org.apache.calcite.rex.RexRangeRef rangeRef)
Boolean	visitSubQuery(org.apache.calcite.rex.RexSubQuery subQuery)
Boolean	visitTableInputRef(org.apache.calcite.rex.RexTableInputRef inputRef)

Methods inherited from class java.lang.Object

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

Constructor Detail

ConstantFinder

public ConstantFinder()

Method Detail

visitLiteral

public Boolean visitLiteral(org.apache.calcite.rex.RexLiteral literal)

Specified by:

visitLiteral in interface org.apache.calcite.rex.RexVisitor<Boolean>

visitInputRef

public Boolean visitInputRef(org.apache.calcite.rex.RexInputRef inputRef)

Specified by:

visitInputRef in interface org.apache.calcite.rex.RexVisitor<Boolean>

visitTableInputRef

public Boolean visitTableInputRef(org.apache.calcite.rex.RexTableInputRef inputRef)

Specified by:

visitTableInputRef in interface org.apache.calcite.rex.RexVisitor<Boolean>

visitLocalRef

public Boolean visitLocalRef(org.apache.calcite.rex.RexLocalRef localRef)

Specified by:

visitLocalRef in interface org.apache.calcite.rex.RexVisitor<Boolean>

visitOver

public Boolean visitOver(org.apache.calcite.rex.RexOver over)

Specified by:

visitOver in interface org.apache.calcite.rex.RexVisitor<Boolean>

visitCorrelVariable

public Boolean visitCorrelVariable(org.apache.calcite.rex.RexCorrelVariable correlVariable)

Specified by:

visitCorrelVariable in interface org.apache.calcite.rex.RexVisitor<Boolean>

visitDynamicParam

public Boolean visitDynamicParam(org.apache.calcite.rex.RexDynamicParam dynamicParam)

Specified by:

visitDynamicParam in interface org.apache.calcite.rex.RexVisitor<Boolean>

visitCall

public Boolean visitCall(org.apache.calcite.rex.RexCall call)

Specified by:

visitCall in interface org.apache.calcite.rex.RexVisitor<Boolean>

visitRangeRef

public Boolean visitRangeRef(org.apache.calcite.rex.RexRangeRef rangeRef)

Specified by:

visitRangeRef in interface org.apache.calcite.rex.RexVisitor<Boolean>

visitFieldAccess

public Boolean visitFieldAccess(org.apache.calcite.rex.RexFieldAccess fieldAccess)

Specified by:

visitFieldAccess in interface org.apache.calcite.rex.RexVisitor<Boolean>

visitSubQuery

public Boolean visitSubQuery(org.apache.calcite.rex.RexSubQuery subQuery)

Specified by:

visitSubQuery in interface org.apache.calcite.rex.RexVisitor<Boolean>

visitPatternFieldRef

public Boolean visitPatternFieldRef(org.apache.calcite.rex.RexPatternFieldRef fieldRef)

Specified by:

visitPatternFieldRef in interface org.apache.calcite.rex.RexVisitor<Boolean>