1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.internal.util;
18
19/**
20 * A Predicate can determine a true or false value for any input of its
21 * parameterized type. For example, a {@code RegexPredicate} might implement
22 * {@code Predicate<String>}, and return true for any String that matches its
23 * given regular expression.
24 * <p/>
25 * <p/>
26 * Implementors of Predicate which may cause side effects upon evaluation are
27 * strongly encouraged to state this fact clearly in their API documentation.
28 */
29public interface Predicate<T> {
30
31    boolean apply(T t);
32}
33