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 OptionalLongPredicate
```
Variation of LongPredicate that returns OptionalBoolean instead of the raw value. OptionalLongPredicate is typically obtained from ExceptionHandler.fromLongPredicate(LongPredicate), in which case its return value is empty when the underlying LongPredicate throws an exception. See noexception tutorial.

See Also:

ExceptionHandler.fromLongPredicate(LongPredicate), LongPredicate

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default LongPredicate`	`orElse(boolean result)`	Converts this `OptionalLongPredicate` to plain `LongPredicate` using default value.
`default LongPredicate`	`orElseGet(BooleanSupplier source)`	Converts this `OptionalLongPredicate` to plain `LongPredicate` using fallback `BooleanSupplier`.
`OptionalBoolean`	`test(long value)`	Variation of `LongPredicate.test(long)` that returns `OptionalBoolean`.

- Method Detail
  - test
```
OptionalBoolean test(long value)
```
    Variation of LongPredicate.test(long) that returns OptionalBoolean. If this OptionalLongPredicate is obtained from ExceptionHandler.fromLongPredicate(LongPredicate), the OptionalBoolean will be empty only if the underlying LongPredicate throws. Otherwise the returned OptionalBoolean just wraps the return value of underlying LongPredicate.
    
    Parameters:
    
    value - see LongPredicate.test(long)
    
    Returns:
    
    OptionalBoolean typically wrapping return value of LongPredicate.test(long), or an empty OptionalBoolean (typically signifying an exception)
    
    See Also:
    
    ExceptionHandler.fromLongPredicate(LongPredicate), LongPredicate.test(long)
  - orElse
```
default LongPredicate orElse(boolean result)
```
    Converts this OptionalLongPredicate to plain LongPredicate using default value. The returned LongPredicate will unwrap present value from the OptionalBoolean if possible, or return result if the OptionalBoolean is empty.
    
    Parameters:
    
    result - default value to return instead of an empty OptionalBoolean
    
    Returns:
    
    plain LongPredicate that either unwraps OptionalBoolean or returns default value
    
    See Also:
    
    orElseGet(BooleanSupplier), OptionalBoolean.orElse(boolean)
  - orElseGet
```
default LongPredicate orElseGet(BooleanSupplier source)
```
    Converts this OptionalLongPredicate to plain LongPredicate using fallback BooleanSupplier. The returned LongPredicate will unwrap present value from the OptionalBoolean if possible, or fall back to calling source if the OptionalBoolean is empty.
    
    Parameters:
    
    source - BooleanSupplier to query for fallback value when OptionalBoolean is empty
    
    Returns:
    
    plain LongPredicate that either unwraps OptionalBoolean or falls back to source
    
    See Also:
    
    orElse(boolean), OptionalBoolean.orElseGet(BooleanSupplier)

Interface OptionalLongPredicate

Method Summary

Method Detail

test

orElse

orElseGet