Package com.terracottatech.store.function

Interface BuildableToDoubleFunction<T>

All Superinterfaces:
ToDoubleFunction<T>
public interface BuildableToDoubleFunction<T> extends ToDoubleFunction<T>
A function of one argument that generates a double result, and supports building derived functional types.

  • Method Details

    • add

      default BuildableToDoubleFunction<T> add(double operand)
      Returns a function that calculates the sum of operand and this.
      Parameters:
      operand - the value to add
      Returns:
      a summing function

    • subtract

      default BuildableToDoubleFunction<T> subtract(double operand)
      Returns a function that subtracts operand from this.
      Parameters:
      operand - the value to subtract
      Returns:
      a subtracting function

    • increment

      default BuildableToDoubleFunction<T> increment()
      Returns a function that increments this by one.
      Returns:
      an incrementing function

    • decrement

      default BuildableToDoubleFunction<T> decrement()
      Returns a function that decrements this by one.
      Returns:
      a decrementing function

    • multiply

      default BuildableToDoubleFunction<T> multiply(double multiplier)
      Returns a function that calculates the product of this and multiplier.
      Parameters:
      multiplier - the multiplier
      Returns:
      a multiplying function

    • divide

      default BuildableToDoubleFunction<T> divide(double divisor)
      Returns a function that calculates the quotient of this and divisor.
      Parameters:
      divisor - the divisor
      Returns:
      a dividing function

    • is

      default BuildablePredicate<T> is(double test)
      Returns a predicate that tests the value generated by this for equality with the supplied constant.

      This method uses the modified Double.equals(Object) contract where Double.NaN == Double.NaN.

      Parameters:
      test - value to test against
      Returns:
      an equality predicate

    • isGreaterThan

      default BuildablePredicate<T> isGreaterThan(double test)
      Returns a predicate that tests the value generated by this to see if it is greater than the supplied constant.
      Parameters:
      test - value to test against
      Returns:
      a greater than predicate

    • isLessThan

      default BuildablePredicate<T> isLessThan(double test)
      Returns a predicate that tests the value generated by this to see if it is less than the supplied constant.
      Parameters:
      test - value to test against
      Returns:
      a less than predicate

    • isGreaterThanOrEqualTo

      default BuildablePredicate<T> isGreaterThanOrEqualTo(double test)
      Returns a predicate that tests the value generated by this to see if it is greater than or equal to the supplied constant.
      Parameters:
      test - value to test against
      Returns:
      a greater than or equal to predicate

    • isLessThanOrEqualTo

      default BuildablePredicate<T> isLessThanOrEqualTo(double test)
      Returns a predicate that tests the value generated by this to see if it is less than or equal to the supplied constant.
      Parameters:
      test - value to test against
      Returns:
      a less than or equal to predicate

    • asComparator

      default Comparator<T> asComparator()
      Returns a Comparator that orders objects using the double values mapped by this function.
      Returns:
      a comparator that orders using the mapped values

    • boxed

      default BuildableComparableFunction<T,Double> boxed()