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

Interface MatchPredicate<T>

Type Parameters:

T - type

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface MatchPredicate<T>

An predicate that tests for a match between quantifiers also taking into account an equivalence maps between CorrelationIdentifiers.

Method Summary

Modifier and Type	Method	Description
default MatchPredicate<T>	and(MatchPredicate<? super T> other)	Method that combines this MatchPredicate and the other one passed in to produce a new MatchPredicate that first tests this predicate and if successful then tests the other.
default <R> MatchFunction<T,R>	andThen(MatchFunction<? super T,R> after)	Method that combines this MatchPredicate and the MatchFunction after passed in to produce a new MatchFunction that first tests this predicate and if successful then applies after.
boolean	test(T element, T otherElement, AliasMap aliasMap)	Test for a match.

Method Detail

test

boolean test(@Nonnull
             T element,
             @Nonnull
             T otherElement,
             @Nonnull
             AliasMap aliasMap)

Test for a match.

Parameters:

element - element on this side

otherElement - element on the other side

aliasMap - bindings that already have been established

Returns:

true for a successful match attempt; false otherwise

and

default MatchPredicate<T> and(MatchPredicate<? super T> other)

Method that combines this MatchPredicate and the other one passed in to produce a new MatchPredicate that first tests this predicate and if successful then tests the other.

Parameters:

other - other MatchPredicate

Returns:

a new MatchPredicate

andThen

default <R> MatchFunction<T,R> andThen(MatchFunction<? super T,R> after)

Method that combines this MatchPredicate and the MatchFunction after passed in to produce a new MatchFunction that first tests this predicate and if successful then applies after.

Type Parameters:

R - type that after produces

Parameters:

after - MatchFunction

Returns:

a new MatchFunction