java8.util.function

Class BiPredicates

java.lang.Object

java8.util.function.BiPredicates

public final class BiPredicates
extends Object

A place for static default implementations of the new Java 8 default interface methods and static interface methods in the BiPredicate interface.

Method Summary

Modifier and Type	Method and Description
static <T,U> BiPredicate<T,U>	and(BiPredicate<? super T,? super U> this_, BiPredicate<? super T,? super U> other) Returns a composed predicate that represents a short-circuiting logical AND of the this_ predicate and another.
static <T,U> BiPredicate<T,U>	negate(BiPredicate<? super T,? super U> this_) Returns a predicate that represents the logical negation of the this_ predicate.
static <T,U> BiPredicate<T,U>	or(BiPredicate<? super T,? super U> this_, BiPredicate<? super T,? super U> other) Returns a composed predicate that represents a short-circuiting logical OR of the this_ predicate and another.

Methods inherited from class java.lang.Object

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

Method Detail

and

public static <T,U> BiPredicate<T,U> and(BiPredicate<? super T,? super U> this_,
                                         BiPredicate<? super T,? super U> other)

Returns a composed predicate that represents a short-circuiting logical AND of the this_ predicate and another. When evaluating the composed predicate, if the this_ predicate is false, then the other predicate is not evaluated.

Any exceptions thrown during evaluation of either predicate are relayed to the caller; if evaluation of the this_ predicate throws an exception, the other predicate will not be evaluated.

Type Parameters:

T - the type of the first argument to the predicate

U - the type of the second argument to the predicate

Parameters:

this_ - a predicate that will be logically-ANDed with the other predicate

other - a predicate that will be logically-ANDed with the this_ predicate

Returns:

a composed predicate that represents the short-circuiting logical AND of the this_ predicate and the other predicate

Throws:

NullPointerException - if this_ is null

NullPointerException - if other is null

negate

public static <T,U> BiPredicate<T,U> negate(BiPredicate<? super T,? super U> this_)

Returns a predicate that represents the logical negation of the this_ predicate.

Type Parameters:

T - the type of the first argument to the predicate

U - the type of the second argument to the predicate

Parameters:

this_ - the BiPredicate to be negated

Returns:

a predicate that represents the logical negation of the this_ predicate

Throws:

NullPointerException - if this_ is null

or

public static <T,U> BiPredicate<T,U> or(BiPredicate<? super T,? super U> this_,
                                        BiPredicate<? super T,? super U> other)

Returns a composed predicate that represents a short-circuiting logical OR of the this_ predicate and another. When evaluating the composed predicate, if the this_ predicate is true, then the other predicate is not evaluated.

Any exceptions thrown during evaluation of either predicate are relayed to the caller; if evaluation of the this_ predicate throws an exception, the other predicate will not be evaluated.

Type Parameters:

T - the type of the first argument to the predicate

U - the type of the second argument to the predicate

Parameters:

this_ - a predicate that will be logically-ORed with other predicate

other - a predicate that will be logically-ORed with this_ predicate

Returns:

a composed predicate that represents the short-circuiting logical OR of the this_ predicate and the other predicate

Throws:

NullPointerException - if this_ is null

NullPointerException - if other is null