Class IfChanged<T>

java.lang.Object

microsim.IfChanged<T>

All Implemented Interfaces:

Supplier<Boolean>

public class IfChanged<T>
extends Object
implements Supplier<Boolean>

Watch the ouput of a Supplier, checking whether the returned value changed since the last invocation.

This uses Object.equals(Object) to perform the comparison.

Constructor Summary

Constructors

Constructor	Description
IfChanged(Supplier<? extends T> source)	Wrap the provided Supplier.

Method Summary

Modifier and Type	Method	Description
Boolean	get()	Check whether the value changed since the last invocation.
static IfChanged<Double>	time(SimulationEngine engine)	Build an IfChanged that checks whether the simulation time changed.

Methods inherited from class Object

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

Constructor Details

IfChanged

public IfChanged(Supplier<? extends T> source)

Wrap the provided Supplier.

Method Details

time

public static IfChanged<Double> time(SimulationEngine engine)

Build an IfChanged that checks whether the simulation time changed.

get

public Boolean get()

Check whether the value changed since the last invocation.

Specified by:

get in interface Supplier<T>