jdk/src/share/classes/java/util/function/ToLongBiFunction.java
changeset 16011 890a7ed97f6c
child 17695 032254f2467b
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16010:2727163b5df5 16011:890a7ed97f6c
       
     1 /*
       
     2  * Copyright (c) 2012, 2013, 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  * Apply a function to the input arguments, yielding an appropriate result.
       
    29  * This is the {@code long}-bearing specialization for {@link BiFunction}.
       
    30  *
       
    31  * @param <T> the type of the first argument to the {@code applyAsLong}
       
    32  * operation.
       
    33  * @param <U> the type of the second argument to the {@code applyAsLong}
       
    34  * operation.
       
    35  *
       
    36  * @see BiFunction
       
    37  * @since 1.8
       
    38  */
       
    39 @FunctionalInterface
       
    40 public interface ToLongBiFunction<T, U> {
       
    41 
       
    42     /**
       
    43      * Compute the result of applying the function to the input arguments.
       
    44      *
       
    45      * @param t an input object
       
    46      * @param u an input object
       
    47      * @return the function result value
       
    48      */
       
    49     public long applyAsLong(T t, U u);
       
    50 }