Package com.apple.foundationdb.record.query.plan.temp

Class Quantifier.ForEach

java.lang.Object

com.apple.foundationdb.record.query.plan.temp.Quantifier

com.apple.foundationdb.record.query.plan.temp.Quantifier.ForEach

All Implemented Interfaces:

Bindable, Correlated<Quantifier>

Enclosing class:

Quantifier

public static final class Quantifier.ForEach
extends Quantifier

A quantifier that conceptually flows one item at a time from the expression it ranges over to the owning expression.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Quantifier.ForEach.ForEachBuilder	Builder subclass to build for-each quantifiers..

Nested classes/interfaces inherited from class com.apple.foundationdb.record.query.plan.temp.Quantifier

Quantifier.Builder<Q extends Quantifier,B extends Quantifier.Builder<Q,B>>, Quantifier.Existential, Quantifier.ForEach, Quantifier.Physical

Nested classes/interfaces inherited from interface com.apple.foundationdb.record.query.plan.temp.Correlated

Correlated.BoundEquivalence

Method Summary

Modifier and Type	Method	Description
Optional<List<? extends QuantifiedColumnValue>>	computeFlowedValues()
ExpressionRef<? extends RelationalExpression>	getRangesOver()	Return the reference that the quantifier ranges over.
String	getShorthand()	Return a short hand string for the quantifier.
Quantifier.ForEach	rebase(AliasMap translationMap)	Rebases this and all other objects this objects is composed of using a given translation map.

Methods inherited from class com.apple.foundationdb.record.query.plan.temp.Quantifier

acceptPropertyVisitor, bindTo, equals, equalsOnKind, existential, existential, existentialBuilder, forEach, forEach, forEachBuilder, getAlias, getCorrelatedTo, getFlowedValues, hashCode, narrow, needsRebase, physical, physical, physicalBuilder, pullUpResultValues, resolveValuesRangedOver, semanticEquals, semanticHashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

getRangesOver

@Nonnull
public ExpressionRef<? extends RelationalExpression> getRangesOver()

Description copied from class: Quantifier

Return the reference that the quantifier ranges over.

Specified by:

getRangesOver in class Quantifier

Returns:

ExpressionRef this quantifier ranges over

getShorthand

@Nonnull
public String getShorthand()

Description copied from class: Quantifier

Return a short hand string for the quantifier. As a quantifier's semantics is usually quite subtle and should not distract from expressions. For example, when a data flow is visualized the returned string should be short.

Specified by:

getShorthand in class Quantifier

Returns:

a short string representing the quantifier.

rebase

@Nonnull
public Quantifier.ForEach rebase(@Nonnull
                                 AliasMap translationMap)

Description copied from interface: Correlated

Rebases this and all other objects this objects is composed of using a given translation map.

Parameters:

translationMap - a map defining a translation from CorrelationIdentifiers ids to CorrelationIdentifiers ids'. After the rebase, every correlation to an id contained ids that is contained or referred to directly or indirectly by this must have been transformed to use the mapped counterpart of id id' in ids'. IDs not contained in the translation map must remain unmodified by the rebase operation.

Returns:

a new entity that has been rebased

computeFlowedValues

@Nonnull
public Optional<List<? extends QuantifiedColumnValue>> computeFlowedValues()

Specified by:

computeFlowedValues in class Quantifier