ViewableAsOptional (Digipost Digg 0.29 API)

All Known Subinterfaces:

Assignment<V>, AtMostOne<T>, ViewableAsOptional.Single<V>

All Known Implementing Classes:

ChainableAssignment, OneTimeAssignment

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 ViewableAsOptional<V>
```

Nested Class Summary

Nested Classes
Modifier and Type	Interface	Description
`static interface`	`ViewableAsOptional.Single<V>`	A `Supplier` which is also `ViewableAsOptional`.
`static class`	`ViewableAsOptional.TooManyElements`	An object which was attempted to be viewed as a `Optional` representation of itself contained more than one element, and is thus not applicable for such conversion.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type Method Description

Optional<V> toOptional()
Get an Optional representation of this object.

- Method Detail
  - toOptional
```
Optional<V> toOptional()
                throws ViewableAsOptional.TooManyElements
```
    Get an Optional representation of this object. If it contains more elements than one, and thus cannot be viewed as an Optional without loosing any information, a ViewableAsOptional.TooManyElements is thrown.
    
    Returns:
    
    the Optional representation of this object.
    
    Throws:
    
    ViewableAsOptional.TooManyElements - if this object contains more than one element, and thus is not applicable for lossless conversion to an Optional.