Package de.xima.fc.utils

Class PredicateUtils

java.lang.Object

de.xima.fc.utils.PredicateUtils

public final class PredicateUtils
extends Object

Utility for Predicates.

Since:

8.0.0

Author:

XIMA MEDIA GmbH

Constructor Summary

Constructors

Constructor	Description
PredicateUtils()

Method Summary

Modifier and Type	Method	Description
static <A, B> Predicate<A>	compose(Predicate<B> predicate, Function<A,? extends B> function)	Returns the composition of a function and a predicate.

Methods inherited from class java.lang.Object

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

Constructor Details

PredicateUtils

public PredicateUtils()

Method Details

compose

public static <A,
B> Predicate<A> compose(Predicate<B> predicate,
 Function<A,? extends B> function)

Returns the composition of a function and a predicate. For every x, the generated predicate returns predicate(function(x)).

Type Parameters:

A - Type of the items that can be tested by the composed predicate.

B - Type of the items that can be tested by the predicate to compose.

Parameters:

predicate - Predicate to compose.

function - Mapping function.

Returns:

the composition of the provided function and predicate