Package org.dmfs.jems.optional.decorators

Class Summary

Class	Description
DelegatingOptional<T>	An abstract Optional which delegates all method calls to another given Optional.
Frozen<T>	An Optional decorator which avoids frequent (potentially expensive) evaluation of another Optional by retaining the result of the first evaluation.
MapCollapsed<From,To>	Optional decorator maps the given Optional to an Optional and collapses the result.
Mapped<From,To>	Optional that maps an Optional if it's present using the given Function.
Restrained<T>	Optional decorator restrains the presence of another Optional with a specific condition.
Sieved<T>	Optional decorator which is present if the delegate is present and satisfies a specific Predicate.