--- /dev/null 2012-10-16 10:45:25.390681017 -0700 +++ new/src/share/classes/java/util/functions/BinaryOperator.java 2012-10-31 12:58:53.402001309 -0700 @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2010, 2011, 2012 Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +package java.util.functions; + +/** + * Combines two operands of the same type producing a result of the same type. + * + * @param the type of input objects to {@code operate} and of the result. + * + * @since 1.8 + */ +public interface BinaryOperator /* extends Combiner */ { + + /** + * Returns the result of some operation upon the the operands. + * The operands are named {@code left} and {@code right} for operations + * where the order of operands matters. + * + * @param left Input object used as the left operand. + * @param right Input object used as the right operand. + * @return result of the operation. + */ + public T operate(T left, T right); +}