| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * 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 com.android.internal.util; |
| |
| import java.util.function.Function; |
| |
| /** |
| * Represents a function that produces an boolean-valued result. This is the |
| * {@code boolean}-producing primitive specialization for {@link Function}. |
| * |
| * <p>This is a <a href="package-summary.html">functional interface</a> |
| * whose functional method is {@link #apply(Object)}. |
| * |
| * @param <T> the type of the input to the function |
| * |
| * @see Function |
| * @since 1.8 |
| */ |
| @FunctionalInterface |
| public interface ToBooleanFunction<T> { |
| |
| /** |
| * Applies this function to the given argument. |
| * |
| * @param value the function argument |
| * @return the function result |
| */ |
| boolean apply(T value); |
| } |