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 double-valued argument and produces a 29607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller * result. This is the {@code double}-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(double)}. 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 DoubleFunction<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(double value); 50607050af5a16c46ae53ff4d2c3f47b4ef694b559Neil Fuller} 51