java.util.function.LongPredicate Maven / Gradle / Ivy
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package java.util.function;
import java.util.Objects;
/**
* Represents a predicate (boolean-valued function) of one {@code long}-valued
* argument. This is the {@code long}-consuming primitive type specialization of
* {@link Predicate}.
*
* This is a functional interface
* whose functional method is {@link #test(long)}.
*
* @see Predicate
* @since 1.8
*/
@FunctionalInterface
public interface LongPredicate {
/**
* Evaluates this predicate on the given argument.
*
* @param value the input argument
* @return {@code true} if the input argument matches the predicate,
* otherwise {@code false}
*/
boolean test(long value);
/**
* Returns a composed predicate that represents a short-circuiting logical
* AND of this predicate and another. When evaluating the composed
* predicate, if this predicate is {@code false}, then the {@code other}
* predicate is not evaluated.
*
*
Any exceptions thrown during evaluation of either predicate are relayed
* to the caller; if evaluation of this predicate throws an exception, the
* {@code other} predicate will not be evaluated.
*
* @param other a predicate that will be logically-ANDed with this
* predicate
* @return a composed predicate that represents the short-circuiting logical
* AND of this predicate and the {@code other} predicate
* @throws NullPointerException if other is null
*/
default LongPredicate and(LongPredicate other) {
Objects.requireNonNull(other);
return (value) -> test(value) && other.test(value);
}
/**
* Returns a predicate that represents the logical negation of this
* predicate.
*
* @return a predicate that represents the logical negation of this
* predicate
*/
default LongPredicate negate() {
return (value) -> !test(value);
}
/**
* Returns a composed predicate that represents a short-circuiting logical
* OR of this predicate and another. When evaluating the composed
* predicate, if this predicate is {@code true}, then the {@code other}
* predicate is not evaluated.
*
*
Any exceptions thrown during evaluation of either predicate are relayed
* to the caller; if evaluation of this predicate throws an exception, the
* {@code other} predicate will not be evaluated.
*
* @param other a predicate that will be logically-ORed with this
* predicate
* @return a composed predicate that represents the short-circuiting logical
* OR of this predicate and the {@code other} predicate
* @throws NullPointerException if other is null
*/
default LongPredicate or(LongPredicate other) {
Objects.requireNonNull(other);
return (value) -> test(value) || other.test(value);
}
}