sdk/sources/android-25/java/util/function/ToIntFunction.java

   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
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  24  */
  25 package java.util.function;
  26
  27 /**
  28  * Represents a function that produces an int-valued result.  This is the
  29  * {@code int}-producing primitive specialization for {@link Function}.
  30  *
  31  * <p>This is a <a href="package-summary.html">functional interface</a>
  32  * whose functional method is {@link #applyAsInt(Object)}.
  33  *
  34  * @param <T> the type of the input to the function
  35  *
  36  * @see Function
  37  * @since 1.8
  38  */
  39 @FunctionalInterface
  40 public interface ToIntFunction<T> {
  41
  42     /**
  43      * Applies this function to the given argument.
  44      *
  45      * @param value the function argument
  46      * @return the function result
  47      */
  48     int applyAsInt(T value);
  49 }