net.malisis.core.util.cacheddata

Class CachedData<T>

java.lang.Object

net.malisis.core.util.cacheddata.CachedData<T>

Type Parameters:

T - the generic type

All Implemented Interfaces:

ICachedData

Direct Known Subclasses:

CachedItemStack

public class CachedData<T>
extends java.lang.Object
implements ICachedData

This class allows custom handling for data that needs to be cached and checked for changes.
update() must be called to refresh the data before calling hasChanged().

Field Summary

Fields

Modifier and Type	Field and Description
protected T	currentData Current data.
protected java.util.function.Supplier<T>	getter Supplier to fetch the current data.
protected T	lastData Data at the last update.
protected java.util.function.BiPredicate<T,T>	predicate Predicate to test if data has changed.

Constructor Summary

Constructors

Constructor and Description
CachedData(java.util.function.Supplier<T> getter) Instantiates a new CachedData.
CachedData(java.util.function.Supplier<T> getter, java.util.function.BiPredicate<T,T> predicate) Instantiates a new CachedData.

Method Summary

Modifier and Type	Method and Description
T	get() Gets the current data.
boolean	hasChanged() Checks whether the data has changed since the last update.
void	update() Updates the current data.

Methods inherited from class java.lang.Object

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

Field Detail

getter

protected java.util.function.Supplier<T> getter

Supplier to fetch the current data.

predicate

protected java.util.function.BiPredicate<T,T> predicate

Predicate to test if data has changed.

lastData

protected T lastData

Data at the last update.

currentData

protected T currentData

Current data.

Constructor Detail

CachedData

public CachedData(java.util.function.Supplier<T> getter,
                  java.util.function.BiPredicate<T,T> predicate)

Instantiates a new CachedData.

Parameters:

getter - the getter

predicate - the predicate

CachedData

public CachedData(java.util.function.Supplier<T> getter)

Instantiates a new CachedData.

Parameters:

getter - the getter

Method Detail

get

public T get()

Gets the current data.

Returns:

the t

update

public void update()

Updates the current data.

Specified by:

update in interface ICachedData

hasChanged

public boolean hasChanged()

Checks whether the data has changed since the last update.

Specified by:

hasChanged in interface ICachedData

Returns:

true, if data has changed