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

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rev 6189 : 8004015: Add Extends and deaults for basic functional interface types
Summary: Adds the appropriate extends and default methods for  core functional interfaces used by the JSR335 libraries.
Reviewed-by: duke


  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  * A supplier of {@code double} values.
  29  *
  30  * <p/>This is the primitive type specialization of {@link Supplier} for
  31  * {@code double} and also may be used as a {@code Supplier<Double>}.
  32  *
  33  * @since 1.8
  34  */
  35 public interface DoubleSupplier {










  36 
  37     /**
  38      * Returns a {@code double} value.
  39      *
  40      * @return a {@code double} value
  41      */
  42     public double getAsDouble();
  43 }


  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  * A supplier of {@code double} values.
  29  *
  30  * <p>This is the primitive type specialization of {@link Supplier} for
  31  * {@code double} and also may be used as a {@code Supplier<Double>}.
  32  *
  33  * @since 1.8
  34  */
  35 public interface DoubleSupplier extends Supplier<Double> {
  36 
  37     /**
  38      * {@inheritDoc}
  39      *
  40      * @return {@inheritDoc}, always non-null
  41      */
  42     @Override
  43     public default Double get() {
  44         return getAsDouble();
  45     }
  46 
  47     /**
  48      * Returns a {@code double} value.
  49      *
  50      * @return a {@code double} value
  51      */
  52     public double getAsDouble();
  53 }