org.takes.misc

Interface Opt<T>

Type Parameters:

T - Type of item

All Known Implementing Classes:

Opt.Empty, Opt.Single

public interface Opt<T>

Replacement a nullable T reference with a non-null value.

All implementations of this interface must be immutable and thread-safe.

Since:

0.14

Version:

$Id: 83d7bcf67448c9047850706e0204d913a86892ea $

Author:

Dmitry Zaytsev ([email protected])

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	Opt.Empty<T> Empty instance.
static class	Opt.Single<T> Holder for a single element only.

Method Summary

Methods

Modifier and Type	Method and Description
T	get() Returns the contained instance.
boolean	has() Returns true if contains instance.

Method Detail

get

T get()

Returns the contained instance.

Returns:

Instance

has

boolean has()

Returns true if contains instance.

Returns:

True if present