1607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller/*
2607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
3607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller *
5607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * This code is free software; you can redistribute it and/or modify it
6607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * under the terms of the GNU General Public License version 2 only, as
7607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * published by the Free Software Foundation.  Oracle designates this
8607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * particular file as subject to the "Classpath" exception as provided
9607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * by Oracle in the LICENSE file that accompanied this code.
10607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller *
11607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * This code is distributed in the hope that it will be useful, but WITHOUT
12607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * version 2 for more details (a copy is included in the LICENSE file that
15607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * accompanied this code).
16607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller *
17607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * You should have received a copy of the GNU General Public License version
18607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * 2 along with this work; if not, write to the Free Software Foundation,
19607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller *
21607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * or visit www.oracle.com if you need additional information or have any
23607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * questions.
24607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller */
25607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fullerpackage java.util.function;
26607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller
27607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller/**
28607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * Represents a function that accepts a long-valued argument and produces a
29607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * result.  This is the {@code long}-consuming primitive specialization for
30607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * {@link Function}.
31607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller *
32607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * <p>This is a <a href="package-summary.html">functional interface</a>
33607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * whose functional method is {@link #apply(long)}.
34607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller *
35607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * @param <R> the type of the result of the function
36607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller *
37607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * @see Function
38607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * @since 1.8
39607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller */
40607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller@FunctionalInterface
41607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fullerpublic interface LongFunction<R> {
42607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller
43607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller    /**
44607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller     * Applies this function to the given argument.
45607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller     *
46607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller     * @param value the function argument
47607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller     * @return the function result
48607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller     */
49607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller    R apply(long value);
50607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller}
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