82  * @author Doug Lea

    82  * @author Doug Lea

    83  */

    83  */

    84 public class DoubleAccumulator extends Striped64 implements Serializable {

    84 public class DoubleAccumulator extends Striped64 implements Serializable {

    85     private static final long serialVersionUID = 7249069246863182397L;

    85     private static final long serialVersionUID = 7249069246863182397L;

    86 

    86 

    87     private final DoubleBinaryOperator function;

    88     private final DoubleBinaryOperator function;

    88     private final long identity; // use long representation

    89     private final long identity; // use long representation

    89 

    90 

    90     /**

    91     /**

    91      * Creates a new instance using the given accumulator function

    92      * Creates a new instance using the given accumulator function

   243 

   244 

   244         /**

   245         /**

   245          * The function used for updates.

   246          * The function used for updates.

   246          * @serial

   247          * @serial

   247          */

   248          */

   248         private final DoubleBinaryOperator function;

   250         private final DoubleBinaryOperator function;

   249 

   251 

   250         /**

   252         /**

   251          * The identity value, represented as a long, as converted by

   253          * The identity value, represented as a long, as converted by

   252          * {@link Double#doubleToRawLongBits}.  The original identity

   254          * {@link Double#doubleToRawLongBits}.  The original identity