Package org.atlanmod.commons

Class LazyDouble

java.lang.Object

org.atlanmod.commons.LazyDouble

@ParametersAreNonnullByDefault
public final class LazyDouble
extends Object

An object that automatically loads a double by using a DoubleSupplier during the first call to getAsDouble().

Method Summary

Modifier and Type	Method	Description
double	getAsDouble()	Gets the wrapped value.
void	ifLoaded(DoubleConsumer consumer)	If a value is loaded, invoke the specified consumer with the value, otherwise do nothing.
boolean	isLoaded()	Returns true if the value has been loaded.
static LazyDouble	of(double value)	Creates a new lazy double with the embed value.
void	unload()	Unloads the wrapped value.
void	update(double newValue)	Updates the wrapped value.
void	update(DoubleUnaryOperator updateOperator)	Updates the wrapped value with a DoubleUnaryOperator.
static LazyDouble	with(DoubleSupplier loadFunction)	Creates a new lazy double with the DoubleSupplier to load the embed value.

Methods inherited from class java.lang.Object

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

Method Detail

of

@Nonnull
public static LazyDouble of(double value)

Creates a new lazy double with the embed value.

Parameters:

value - the embed value

Returns:

a new lazy object

with

@Nonnull
public static LazyDouble with(DoubleSupplier loadFunction)

Creates a new lazy double with the DoubleSupplier to load the embed value.

Parameters:

loadFunction - the function used to load the value

Returns:

a new lazy object

getAsDouble

public double getAsDouble()

Gets the wrapped value. On the first call, the object is created.

Returns:

the value

update

public void update(double newValue)

Updates the wrapped value.

Parameters:

newValue - the new value

update

public void update(DoubleUnaryOperator updateOperator)

Updates the wrapped value with a DoubleUnaryOperator.

Parameters:

updateOperator - the operator to update the wrapped value

isLoaded

public boolean isLoaded()

Returns true if the value has been loaded.

Returns:

true if the value has been loaded

ifLoaded

public void ifLoaded(DoubleConsumer consumer)

If a value is loaded, invoke the specified consumer with the value, otherwise do nothing.

Parameters:

consumer - action to be executed if a value is present

unload

public void unload()

Unloads the wrapped value. If the value is not loaded, then this method does nothing.