Package org.apache.calcite.rex

Interface RexVisitor<R>

Type Parameters:

R - Return type

All Known Implementing Classes:

CalcRelSplitter.HighestUsageFinder, CalcRelSplitter.ImplementTester, CalcRelSplitter.InputToCommonExprConverter, CalcRelSplitter.MaxInputFinder, CassandraRules.RexToCassandraTranslator, CorrelationReferenceFinder.MyRexVisitor, DateRangeRules.ExtractFinder, DateRangeRules.ExtractShuttle, DeduplicateCorrelateVariables.DeduplicateCorrelateVariablesShuttle, ElasticsearchRules.RexToElasticsearchTranslator, FilterRemoveIsNotDistinctFromRule.RemoveIsNotDistinctFromRexShuttle, GeodeRules.RexToGeodeTranslator, JdbcRules.CheckingUserDefinedFunctionVisitor, JoinToMultiJoinRule.InputReferenceCounter, MapProjectionFieldVisitor, Match.AggregateFinder, Match.PatternVarFinder, MongoRules.RexToMongoTranslator, PredicateAnalyzer.NotLikeConverter, PredicateAnalyzer.Visitor, ProjectCorrelateTransposeRule.RexFieldAccessReplacer, PushProjector.InputSpecialOpFinder, PushProjector.RefAndExprConverter, ReduceDecimalsRule.DecimalShuttle, ReduceExpressionsRule.CaseShuttle, ReduceExpressionsRule.ReducibleExprLocator, ReduceExpressionsRule.RexReplacer, RelBuilder.Shifter, RelDecorrelator.DecorrelateRexShuttle, RelDecorrelator.RemoveCorrelationRexShuttle, RelMdExpressionLineage.RexReplacer, RelMdPredicates.JoinConditionBasedPredicateInference.EquivalenceFinder, RelMdUtil.CardOfProjExpr, RelOptUtil.InputFinder, RelOptUtil.InputReferencedVisitor, RelOptUtil.RexInputConverter, RelOptUtil.VariableUsedVisitor, RelStructuredTypeFlattener.RewriteRexShuttle, RexAnalyzer.VariableCollector, RexChecker, RexCopier, RexImplicationChecker.InputUsageFinder, RexInterpreter, RexMultisetUtil.RexCallMultisetOperatorCounter, RexOver.Finder, RexPermutationShuttle, RexPermuteInputsShuttle, RexProgram.Checker, RexProgram.ConstantFinder, RexProgram.ExpansionShuttle, RexProgram.Marshaller, RexProgram.ReferenceCounter, RexProgramBuilder.RegisterInputShuttle, RexProgramBuilder.RegisterMidputShuttle, RexProgramBuilder.RegisterOutputShuttle, RexProgramBuilder.RegisterShuttle, RexProgramBuilder.UpdateRefShuttle, RexShuttle, RexSimplify.SafeRexVisitor, RexUtil.ConstantFinder, RexUtil.CorrelationFinder, RexUtil.ExpressionNormalizer, RexUtil.ExprSimplifier, RexUtil.FieldAccessFinder, RexUtil.FixNullabilityShuttle, RexUtil.ForwardRefFinder, RexUtil.RexShiftShuttle, RexUtil.SubQueryFinder, RexVisitorImpl, SqlToRelConverter.HistogramShuttle, SubQueryRemoveRule.ReplaceSubQueryShuttle, ValuesReduceRule.MyRexShuttle

public interface RexVisitor<R>

Visitor pattern for traversing a tree of RexNode objects.

See Also:

Glossary.VISITOR_PATTERN, RexShuttle, RexVisitorImpl

Method Summary

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

Method Detail

visitInputRef

R visitInputRef(RexInputRef inputRef)

visitLocalRef

R visitLocalRef(RexLocalRef localRef)

visitLiteral

R visitLiteral(RexLiteral literal)

visitCall

R visitCall(RexCall call)

visitOver

R visitOver(RexOver over)

visitCorrelVariable

R visitCorrelVariable(RexCorrelVariable correlVariable)

visitDynamicParam

R visitDynamicParam(RexDynamicParam dynamicParam)

visitRangeRef

R visitRangeRef(RexRangeRef rangeRef)

visitFieldAccess

R visitFieldAccess(RexFieldAccess fieldAccess)

visitSubQuery

R visitSubQuery(RexSubQuery subQuery)

visitTableInputRef

R visitTableInputRef(RexTableInputRef fieldRef)

visitPatternFieldRef

R visitPatternFieldRef(RexPatternFieldRef fieldRef)