Package org.stianloader.smatterdi

Class Lazy<T>

java.lang.Object

org.stianloader.smatterdi.Lazy<T>

public class Lazy<T>
extends Object

Constructor Summary

Constructors

Constructor	Description
Lazy(Supplier<T> supplier)
Lazy(T value)

Method Summary

Modifier and Type	Method	Description
Lazy<T>	configure(Consumer<T> action)
T	get()	Obtains the value of the lazy.
Optional<T>	getIfPresent()	If the value of the lazy object was already calculated, this method returns a non-empty options.
boolean	isDone()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Lazy

public Lazy(@NotNull
 Supplier<T> supplier)

Lazy

public Lazy(@NotNull
 T value)

Method Details

get

@NotNull
@Contract(pure=false)
public T get()

Obtains the value of the lazy.

If the value hasn't yet been computed, the value will get computed and all registered configurators are called on the computed value.

A lazy will not be computed twice if the supplier or a configurator throws a Throwable. Instead, the exception will be rethrown in a packaged form.

Returns:

The value of the lazy

getIfPresent

@NotNull
@Contract(pure=true)
public Optional<T> getIfPresent()

If the value of the lazy object was already calculated, this method returns a non-empty options. Otherwise (as get() was not called yet), it will return an empty optional.

Returns:

The current value of the optional

configure

@NotNull
@Contract(mutates="this",
          pure=false,
          value="null -> fail; !null -> this")
public Lazy<T> configure(@NotNull
 Consumer<T> action)

isDone

public boolean isDone()