gw.util.concurrent

Class LockingLazyVar<T>

java.lang.Object

gw.util.concurrent.LockingLazyVar<T>

public abstract class LockingLazyVar<T>
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	LockingLazyVar.LazyVarInit<Q> A simple init interface to make LockingLazyVar's easier to construct from gosu.

Field Summary

Fields

Modifier and Type	Field and Description
protected static Object	NULL

Constructor Summary

Constructors

Modifier	Constructor and Description
	LockingLazyVar() Constructs a LockingLazyVar that will use itself as the object of synchronization.
protected	LockingLazyVar(Lock lock) Constructs a LockingLazyVar that will synchronize on the given object.

Method Summary

Modifier and Type	Method and Description
T	clear() Clears the variable, forcing the next call to get() to re-calculate the value.
void	clearNoLock()
T	get()
protected abstract T	init()
protected void	initDirectly(T val)
boolean	isLoaded()
static <Q> LockingLazyVar<Q>	make(LockingLazyVar.LazyVarInit<Q> init) Creates a new LockingLazyVar based on the type of the LazyVarInit passed in.

Methods inherited from class java.lang.Object

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

Field Detail

NULL

protected static final Object NULL

Constructor Detail

LockingLazyVar

public LockingLazyVar()

Constructs a LockingLazyVar that will use itself as the object of synchronization.

LockingLazyVar

protected LockingLazyVar(Lock lock)

Constructs a LockingLazyVar that will synchronize on the given object.

Method Detail

get

public final T get()

Returns:

the value of this lazy var, created if necessary

init

protected abstract T init()

clear

public final T clear()

Clears the variable, forcing the next call to get() to re-calculate the value.

clearNoLock

public final void clearNoLock()

initDirectly

protected void initDirectly(T val)

isLoaded

public boolean isLoaded()

make

public static <Q> LockingLazyVar<Q> make(LockingLazyVar.LazyVarInit<Q> init)

Creates a new LockingLazyVar based on the type of the LazyVarInit passed in. This method is intended to be called with blocks from Gosu.