net.covers1624.quack.util

Class LazyValue<T>

java.lang.Object

net.covers1624.quack.util.LazyValue<T>

All Implemented Interfaces:

java.util.function.Supplier<T>

public class LazyValue<T>
extends java.lang.Object
implements java.util.function.Supplier<T>

A simple Holder object to lazily compute some value.

This class is synchronized, meaning multi-thread access causing the value to be resolved is properly handled.

This class is also explicitly NonNull.

Created by covers1624 on 15/4/21.

Constructor Summary

Constructors

Constructor and Description
LazyValue(java.util.function.Supplier<T> factory)

Method Summary

Modifier and Type	Method and Description
T	get() Get or compute the value if it doesn't exist.
boolean	hasValue() If the value is present or not.

Methods inherited from class java.lang.Object

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

Constructor Detail

LazyValue

public LazyValue(java.util.function.Supplier<T> factory)

Method Detail

get

public T get()

Get or compute the value if it doesn't exist.

Specified by:

get in interface java.util.function.Supplier<T>

Returns:

The value.

hasValue

public boolean hasValue()

If the value is present or not.

Returns:

If the value is present.