All Superinterfaces:

LongFunction<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 OptionalLongToIntFunction
extends LongFunction<OptionalInt>
```
Variation of LongToIntFunction that returns OptionalInt instead of the raw value. OptionalLongToIntFunction is typically obtained from ExceptionHandler.fromLongToIntFunction(LongToIntFunction), in which case its return value is empty when the underlying LongToIntFunction throws an exception. See noexception tutorial.

See Also:

ExceptionHandler.fromLongToIntFunction(LongToIntFunction), LongToIntFunction

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`OptionalInt`	`apply(long value)`	Variation of `LongToIntFunction.applyAsInt(long)` that returns `OptionalInt`.
`default LongToIntFunction`	`orElse(int result)`	Converts this `OptionalLongToIntFunction` to plain `LongToIntFunction` using default value.
`default LongToIntFunction`	`orElseGet(IntSupplier source)`	Converts this `OptionalLongToIntFunction` to plain `LongToIntFunction` using fallback `IntSupplier`.

- Method Detail
  - apply
```
OptionalInt apply(long value)
```
    Variation of LongToIntFunction.applyAsInt(long) that returns OptionalInt. If this OptionalLongToIntFunction is obtained from ExceptionHandler.fromLongToIntFunction(LongToIntFunction), the OptionalInt will be empty only if the underlying LongToIntFunction throws. Otherwise the returned OptionalInt just wraps the return value of underlying LongToIntFunction.
    
    Specified by:
    
    apply in interface LongFunction<OptionalInt>
    
    Parameters:
    
    value - see LongToIntFunction.applyAsInt(long)
    
    Returns:
    
    OptionalInt typically wrapping return value of LongToIntFunction.applyAsInt(long), or an empty OptionalInt (typically signifying an exception)
    
    See Also:
    
    ExceptionHandler.fromLongToIntFunction(LongToIntFunction), LongToIntFunction.applyAsInt(long)
  - orElse
```
default LongToIntFunction orElse(int result)
```
    Converts this OptionalLongToIntFunction to plain LongToIntFunction using default value. The returned LongToIntFunction 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 LongToIntFunction that either unwraps OptionalInt or returns default value
    
    See Also:
    
    orElseGet(IntSupplier), OptionalInt.orElse(int)
  - orElseGet
```
default LongToIntFunction orElseGet(IntSupplier source)
```
    Converts this OptionalLongToIntFunction to plain LongToIntFunction using fallback IntSupplier. The returned LongToIntFunction 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 LongToIntFunction that either unwraps OptionalInt or falls back to source
    
    See Also:
    
    orElse(int), OptionalInt.orElseGet(IntSupplier)

Interface OptionalLongToIntFunction

Method Summary

Method Detail

apply

orElse

orElseGet