1 /*
   2  * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 package java.util.function;
  26 
  27 /**
  28  * Combines two {@code long} operands producing an {@code long} result.
  29  *
  30  * @since 1.8
  31  */
  32 public interface LongBinaryOperator /* extends BinaryOperator<Long> */ {
  33 //
  34 //    /**
  35 //     * Returns the result of some binary operation upon the operands. The
  36 //     * parameters are named {@code left} and {@code right} for operations where
  37 //     * the order of operands matters.
  38 //     *
  39 //     * @param left the left operand
  40 //     * @param right the right operand
  41 //     * @return result of the operation
  42 //     */
  43 //    public default Long operate(Long left, Long right) { return operate((long) left, (long) right); }
  44 
  45     /**
  46      * Returns the result of some binary operation upon the operands. The
  47      * parameters are named {@code left} and {@code right} for operations where
  48      * the order of operands matters.
  49      *
  50      * @param left value used as the left operand
  51      * @param right value used as the right operand
  52      * @return result value of the operation
  53      */
  54     public long operate(long left, long right);
  55 }