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 argument, yielding an appropriate result.
29 * This is the {@code long}-bearing specialization for {@link Function}.
30 *
31 * @param <T> the type of input objects to the function
32 *
33 * @see Function
34 * @since 1.8
35 */
36 @FunctionalInterface
37 public interface ToLongFunction<T> {
38
39 /**
40 * Compute the result of applying the function to the input arguments.
41 *
42 * @param t the input object
43 * @return the function result value
44 */
45 long applyAsLong(T t);
46 }
|
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 produces a long-valued result. This is the
29 * {@code long}-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 #applyAsLong(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 ToLongFunction<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 long applyAsLong(T value);
49 }
|