org.apache.calcite.plan

Class RelOptUtil.InputFinder

java.lang.Object

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

org.apache.calcite.plan.RelOptUtil.InputFinder

All Implemented Interfaces:

RexVisitor<Void>

Enclosing class:

RelOptUtil

public static class RelOptUtil.InputFinder
extends RexVisitorImpl<Void>

Visitor which builds a bitmap of the inputs used by an expression.

Field Summary

Fields

Modifier and Type	Field and Description
ImmutableBitSet.Builder	inputBitSet

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

deep

Constructor Summary

Constructors

Constructor and Description
RelOptUtil.InputFinder()
RelOptUtil.InputFinder(Set<RelDataTypeField> extraFields)

Method Summary

Methods

Modifier and Type	Method and Description
static RelOptUtil.InputFinder	analyze(RexNode node) Returns an input finder that has analyzed a given expression.
static ImmutableBitSet	bits(List<RexNode> exprs, RexNode expr) Returns a bit set describing the inputs used by a collection of project expressions and an optional condition.
static ImmutableBitSet	bits(RexNode node) Returns a bit set describing the inputs used by an expression.
Void	visitCall(RexCall call)
Void	visitInputRef(RexInputRef inputRef)

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

visitArrayAnd, visitArrayOr, visitCorrelVariable, visitDynamicParam, visitFieldAccess, visitLiteral, visitLocalRef, visitOver, visitRangeRef

Methods inherited from class java.lang.Object

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

Field Detail

inputBitSet

public final ImmutableBitSet.Builder inputBitSet

Constructor Detail

RelOptUtil.InputFinder

public RelOptUtil.InputFinder()

RelOptUtil.InputFinder

public RelOptUtil.InputFinder(Set<RelDataTypeField> extraFields)

Method Detail

analyze

public static RelOptUtil.InputFinder analyze(RexNode node)

Returns an input finder that has analyzed a given expression.

bits

public static ImmutableBitSet bits(RexNode node)

Returns a bit set describing the inputs used by an expression.

bits

public static ImmutableBitSet bits(List<RexNode> exprs,
                   RexNode expr)

Returns a bit set describing the inputs used by a collection of project expressions and an optional condition.

visitInputRef

public Void visitInputRef(RexInputRef inputRef)

Specified by:

visitInputRef in interface RexVisitor<Void>

Overrides:

visitInputRef in class RexVisitorImpl<Void>

visitCall

public Void visitCall(RexCall call)

Specified by:

visitCall in interface RexVisitor<Void>

Overrides:

visitCall in class RexVisitorImpl<Void>