src/share/classes/java/util/function/LongFunction.java

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rev 7675 : 8019840: Spec updates for java.util.function
Reviewed-by: mduigou
Contributed-by: brian.goetz@oracle.com


   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 long-valued input argument, yielding an appropriate
  29  * result. This is the {@code long}-consuming primitive specialization for
  30  * {@link Function}.
  31  *
  32  * @param <R> the type of output objects from the function



  33  *
  34  * @see Function
  35  * @since 1.8
  36  */
  37 @FunctionalInterface
  38 public interface LongFunction<R> {
  39 
  40     /**
  41      * Compute the result of applying the function to the input argument
  42      *
  43      * @param value the input value
  44      * @return the function result
  45      */
  46     R apply(long value);
  47 }


   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  * Represents a function that accepts a long-valued argument and produces a
  29  * result.  This is the {@code long}-consuming primitive specialization for
  30  * {@link Function}.
  31  *
  32  * <p>This is a <a href="package-summary.html">functional interface</a>
  33  * whose functional method is {@link #apply(long)}.
  34  *
  35  * @param <R> the type of the result of the function
  36  *
  37  * @see Function
  38  * @since 1.8
  39  */
  40 @FunctionalInterface
  41 public interface LongFunction<R> {
  42 
  43     /**
  44      * Applies this function to the given argument.
  45      *
  46      * @param value the function argument
  47      * @return the function result
  48      */
  49     R apply(long value);
  50 }