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/*
* Copyright 2015 Daniel Skogquist Åborg
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.d2ab.function.chars;
import java.util.Objects;
import java.util.function.Predicate;
/**
* Represents a predicate (boolean-valued function) of one {@code char}-valued argument. This is the {@code
* char}-consuming primitive type specialization of {@link Predicate}.
*
*
This is a functional interface whose functional method is {@link #test(char)}.
*
* @see Predicate
* @since 1.8
*/
@FunctionalInterface
public interface CharPredicate {
/**
* 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 CharPredicate and(CharPredicate other) {
Objects.requireNonNull(other);
return (value) -> test(value) && other.test(value);
}
/**
* 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(char value);
/**
* Returns a predicate that represents the logical negation of this predicate.
*
* @return a predicate that represents the logical negation of this predicate
*/
default CharPredicate 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 CharPredicate or(CharPredicate other) {
Objects.requireNonNull(other);
return (value) -> test(value) || other.test(value);
}
}