Type Parameters:

T - see ToIntBiFunction

U - see ToIntBiFunction

All Superinterfaces:

BiFunction<T,U,OptionalInt>

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 OptionalToIntBiFunction<T,U>
extends BiFunction<T,U,OptionalInt>
```
Variation of ToIntBiFunction that returns OptionalInt instead of the raw value. OptionalToIntBiFunction is typically obtained from ExceptionHandler.fromToIntBiFunction(ToIntBiFunction), in which case its return value is empty when the underlying ToIntBiFunction throws an exception. See noexception tutorial.

See Also:

ExceptionHandler.fromToIntBiFunction(ToIntBiFunction), ToIntBiFunction

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`OptionalInt`	`apply(T t, U u)`	Variation of `ToIntBiFunction.applyAsInt(Object, Object)` that returns `OptionalInt`.
`default ToIntBiFunction<T,U>`	`orElse(int result)`	Converts this `OptionalToIntBiFunction` to plain `ToIntBiFunction` using default value.
`default ToIntBiFunction<T,U>`	`orElseGet(IntSupplier source)`	Converts this `OptionalToIntBiFunction` to plain `ToIntBiFunction` using fallback `IntSupplier`.

Methods inherited from interface java.util.function.BiFunction
andThen

- Method Detail
  - apply
```
OptionalInt apply(T t,
                  U u)
```
    Variation of ToIntBiFunction.applyAsInt(Object, Object) that returns OptionalInt. If this OptionalToIntBiFunction is obtained from ExceptionHandler.fromToIntBiFunction(ToIntBiFunction), the OptionalInt will be empty only if the underlying ToIntBiFunction throws. Otherwise the returned OptionalInt just wraps the return value of underlying ToIntBiFunction.
    
    Specified by:
    
    apply in interface BiFunction<T,U,OptionalInt>
    
    Parameters:
    
    t - see ToIntBiFunction.applyAsInt(Object, Object)
    
    u - see ToIntBiFunction.applyAsInt(Object, Object)
    
    Returns:
    
    OptionalInt typically wrapping return value of ToIntBiFunction.applyAsInt(Object, Object), or an empty OptionalInt (typically signifying an exception)
    
    See Also:
    
    ExceptionHandler.fromToIntBiFunction(ToIntBiFunction), ToIntBiFunction.applyAsInt(Object, Object)
  - orElse
```
default ToIntBiFunction<T,U> orElse(int result)
```
    Converts this OptionalToIntBiFunction to plain ToIntBiFunction using default value. The returned ToIntBiFunction will unwrap present value from the OptionalInt if possible, or return result if the OptionalInt is empty.
    
    Parameters:
    
    result - default value to return instead of an empty OptionalInt
    
    Returns:
    
    plain ToIntBiFunction that either unwraps OptionalInt or returns default value
    
    See Also:
    
    orElseGet(IntSupplier), OptionalInt.orElse(int)
  - orElseGet
```
default ToIntBiFunction<T,U> orElseGet(IntSupplier source)
```
    Converts this OptionalToIntBiFunction to plain ToIntBiFunction using fallback IntSupplier. The returned ToIntBiFunction will unwrap present value from the OptionalInt if possible, or fall back to calling source if the OptionalInt is empty.
    
    Parameters:
    
    source - IntSupplier to query for fallback value when OptionalInt is empty
    
    Returns:
    
    plain ToIntBiFunction that either unwraps OptionalInt or falls back to source
    
    See Also:
    
    orElse(int), OptionalInt.orElseGet(IntSupplier)

Interface OptionalToIntBiFunction<T,​U>

Method Summary

Methods inherited from interface java.util.function.BiFunction

Method Detail

apply

orElse

orElseGet

Interface OptionalToIntBiFunction<T,U>