Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public interface OptionalDoubleBinaryOperator
```
Variation of DoubleBinaryOperator that returns OptionalDouble instead of the raw value. OptionalDoubleBinaryOperator is typically obtained from ExceptionHandler.fromDoubleBinaryOperator(DoubleBinaryOperator), in which case its return value is empty when the underlying DoubleBinaryOperator throws an exception. See noexception tutorial.

See Also:

ExceptionHandler.fromDoubleBinaryOperator(DoubleBinaryOperator), DoubleBinaryOperator

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`OptionalDouble`	`apply(double left, double right)`	Variation of `DoubleBinaryOperator.applyAsDouble(double, double)` that returns `OptionalDouble`.
`default DoubleBinaryOperator`	`orElse(double result)`	Converts this `OptionalDoubleBinaryOperator` to plain `DoubleBinaryOperator` using default value.
`default DoubleBinaryOperator`	`orElseGet(DoubleSupplier source)`	Converts this `OptionalDoubleBinaryOperator` to plain `DoubleBinaryOperator` using fallback `DoubleSupplier`.

- Method Detail
  - apply
```
OptionalDouble apply(double left,
                     double right)
```
    Variation of DoubleBinaryOperator.applyAsDouble(double, double) that returns OptionalDouble. If this OptionalDoubleBinaryOperator is obtained from ExceptionHandler.fromDoubleBinaryOperator(DoubleBinaryOperator), the OptionalDouble will be empty only if the underlying DoubleBinaryOperator throws. Otherwise the returned OptionalDouble just wraps the return value of underlying DoubleBinaryOperator.
    
    Parameters:
    
    left - see DoubleBinaryOperator.applyAsDouble(double, double)
    
    right - see DoubleBinaryOperator.applyAsDouble(double, double)
    
    Returns:
    
    OptionalDouble typically wrapping return value of DoubleBinaryOperator.applyAsDouble(double, double), or an empty OptionalDouble (typically signifying an exception)
    
    See Also:
    
    ExceptionHandler.fromDoubleBinaryOperator(DoubleBinaryOperator), DoubleBinaryOperator.applyAsDouble(double, double)
  - orElse
```
default DoubleBinaryOperator orElse(double result)
```
    Converts this OptionalDoubleBinaryOperator to plain DoubleBinaryOperator using default value. The returned DoubleBinaryOperator will unwrap present value from the OptionalDouble if possible, or return result if the OptionalDouble is empty.
    
    Parameters:
    
    result - default value to return instead of an empty OptionalDouble
    
    Returns:
    
    plain DoubleBinaryOperator that either unwraps OptionalDouble or returns default value
    
    See Also:
    
    orElseGet(DoubleSupplier), OptionalDouble.orElse(double)
  - orElseGet
```
default DoubleBinaryOperator orElseGet(DoubleSupplier source)
```
    Converts this OptionalDoubleBinaryOperator to plain DoubleBinaryOperator using fallback DoubleSupplier. The returned DoubleBinaryOperator will unwrap present value from the OptionalDouble if possible, or fall back to calling source if the OptionalDouble is empty.
    
    Parameters:
    
    source - DoubleSupplier to query for fallback value when OptionalDouble is empty
    
    Returns:
    
    plain DoubleBinaryOperator that either unwraps OptionalDouble or falls back to source
    
    See Also:
    
    orElse(double), OptionalDouble.orElseGet(DoubleSupplier)

Interface OptionalDoubleBinaryOperator

Method Summary

Method Detail

apply

orElse

orElseGet