Uses of Class
org.apache.calcite.rex.RexVisitorImpl

Packages that use RexVisitorImpl

Package	Description
org.apache.calcite.adapter.elasticsearch	Base classes for a query provider based on an Elasticsearch DB.
org.apache.calcite.plan	Defines interfaces for constructing rule-based optimizers of relational expressions.
org.apache.calcite.rel.core	Defines core relational expressions.
org.apache.calcite.rel.metadata	Defines metadata interfaces and utilities for relational expressions.
org.apache.calcite.rel.rules	Provides a core set of planner rules.
org.apache.calcite.rex	Provides a language for representing row-expressions.
org.apache.calcite.sql2rel	Translates a SQL parse tree to relational expression.

Uses of RexVisitorImpl in org.apache.calcite.adapter.elasticsearch

Subclasses of RexVisitorImpl in org.apache.calcite.adapter.elasticsearch

Modifier and Type	Class and Description
(package private) static class	ElasticsearchRules.RexToElasticsearchTranslator Translator from RexNode to strings in Elasticsearch's expression language.
class	MapProjectionFieldVisitor Visitor that extracts the actual field name from an item expression.

Uses of RexVisitorImpl in org.apache.calcite.plan

Subclasses of RexVisitorImpl in org.apache.calcite.plan

Modifier and Type	Class and Description
static class	RelOptUtil.InputFinder Visitor which builds a bitmap of the inputs used by an expression.
private static class	RexImplicationChecker.InputUsageFinder Visitor that builds a usage map of inputs used by an expression.

Uses of RexVisitorImpl in org.apache.calcite.rel.core

Subclasses of RexVisitorImpl in org.apache.calcite.rel.core

Modifier and Type	Class and Description
private static class	Match.AggregateFinder Find aggregate functions in operands.
private static class	Match.PatternVarFinder Visits the operands of an aggregate call to retrieve relevant pattern variables.

Uses of RexVisitorImpl in org.apache.calcite.rel.metadata

Subclasses of RexVisitorImpl in org.apache.calcite.rel.metadata

Modifier and Type	Class and Description
(package private) class	RelMdPredicates.JoinConditionBasedPredicateInference.EquivalenceFinder Find expressions of the form 'col_x = col_y'.
private static class	RelMdUtil.CardOfProjExpr Visitor that walks over a scalar expression and computes the cardinality of its result.

Uses of RexVisitorImpl in org.apache.calcite.rel.rules

Subclasses of RexVisitorImpl in org.apache.calcite.rel.rules

Modifier and Type	Class and Description
private static class	CalcRelSplitter.HighestUsageFinder Builds an array of the highest level which contains an expression which uses each expression as an input.
private static class	CalcRelSplitter.ImplementTester Visitor which returns whether an expression can be implemented in a given type of relational expression.
private static class	CalcRelSplitter.MaxInputFinder Finds the highest level used by any of the inputs of a given expression.
private static class	DateRangeRules.ExtractFinder Visitor that searches for calls to EXTRACT, FLOOR or CEIL, building a list of distinct time units.
private class	JoinToMultiJoinRule.InputReferenceCounter Visitor that keeps a reference count of the inputs used by an expression.
private class	PushProjector.InputSpecialOpFinder Visitor which builds a bitmap of the inputs used by an expressions, as well as locating expressions corresponding to special operators.
protected static class	ReduceExpressionsRule.ReducibleExprLocator Helper class used to locate expressions that either can be reduced to literals or contain redundant casts.

Uses of RexVisitorImpl in org.apache.calcite.rex

Subclasses of RexVisitorImpl in org.apache.calcite.rex

Modifier and Type	Class and Description
class	RexChecker Visitor which checks the validity of a RexNode expression.
private static class	RexMultisetUtil.RexCallMultisetOperatorCounter A RexShuttle that traverse all RexNode and counts total number of RexCalls traversed and number of multiset calls traversed.
private static class	RexOver.Finder Visitor which detects a RexOver inside a RexNode expression.
(package private) static class	RexProgram.Checker Visitor which walks over a program and checks validity.
private class	RexProgram.Marshaller Given an expression in a program, creates a clone of the expression with sub-expressions (represented by RexLocalRefs) fully expanded.
private class	RexProgram.ReferenceCounter Visitor which marks which expressions are used.
private static class	RexUtil.CorrelationFinder Visitor that throws Util.FoundOne if applied to an expression that contains a RexCorrelVariable.
private static class	RexUtil.ExpressionNormalizer Walks over expressions and builds a bank of common sub-expressions.
static class	RexUtil.FieldAccessFinder Visitor which builds a bitmap of the inputs used by an expression.
private static class	RexUtil.ForwardRefFinder Walks over an expression and throws an exception if it finds an RexInputRef with an ordinal beyond the number of fields in the input row type, or a RexLocalRef with ordinal greater than that set using RexUtil.ForwardRefFinder.setLimit(int).
static class	RexUtil.SubQueryFinder Visitor that throws Util.FoundOne if applied to an expression that contains a RexSubQuery.

Uses of RexVisitorImpl in org.apache.calcite.sql2rel

Methods in org.apache.calcite.sql2rel that return RexVisitorImpl

Modifier and Type	Method and Description
private RexVisitorImpl<Void>	RelDecorrelator.CorelMapBuilder.rexVisitor(RelNode rel)