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

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

*** 23,46 ****
   * questions.
   */
  package java.util.function;
  
  /**
!  * Apply a function to the input argument, yielding an appropriate result.
!  * This is the {@code double}-bearing specialization for {@link Function}.
   *
!  * @param <T> the type of input objects to the function
   *
   * @see Function
   * @since 1.8
   */
  @FunctionalInterface
  public interface ToDoubleFunction<T> {
  
      /**
!      * Compute the result of applying the function to the input argument
       *
!      * @param t the input object
!      * @return the function result value
       */
!     double applyAsDouble(T t);
  }
--- 23,49 ----
   * questions.
   */
  package java.util.function;
  
  /**
!  * Represents a function that produces a double-valued result.  This is the
!  * {@code double}-producing primitive specialization for {@link Function}.
   *
!  * <p>This is a <a href="package-summary.html">functional interface</a>
!  * whose functional method is {@link #applyAsDouble(Object)}.
!  *
!  * @param <T> the type of the input to the function
   *
   * @see Function
   * @since 1.8
   */
  @FunctionalInterface
  public interface ToDoubleFunction<T> {
  
      /**
!      * Applies this function to the given argument.
       *
!      * @param value the function argument
!      * @return the function result
       */
!     double applyAsDouble(T value);
  }