Package gw.util.concurrent
Class LockingLazyVar<T>
- java.lang.Object
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- gw.util.concurrent.LockingLazyVar<T>
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public abstract class LockingLazyVar<T> extends Object
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Nested Class Summary
Nested Classes Modifier and Type Class Description static interface
LockingLazyVar.LazyVarInit<Q>
A simple init interface to make LockingLazyVar's easier to construct from gosu.
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Constructor Summary
Constructors Modifier Constructor 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.
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Method Summary
All Methods Static Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description T
clear()
Clears the variable, forcing the next call toget()
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.static <Q> LockingLazyVar<Q>
make(Lock lock, LockingLazyVar.LazyVarInit<Q> init)
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Field Detail
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NULL
protected static final Object NULL
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Constructor Detail
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LockingLazyVar
public LockingLazyVar()
Constructs a LockingLazyVar that will use itself as the object of synchronization.
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LockingLazyVar
protected LockingLazyVar(Lock lock)
Constructs a LockingLazyVar that will synchronize on the given object.
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Method Detail
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get
public final T get()
- Returns:
- the value of this lazy var, created if necessary
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init
protected abstract T init()
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clear
public final T clear()
Clears the variable, forcing the next call toget()
to re-calculate the value.
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clearNoLock
public final void clearNoLock()
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initDirectly
protected void initDirectly(T val)
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isLoaded
public boolean isLoaded()
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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.
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make
public static <Q> LockingLazyVar<Q> make(Lock lock, LockingLazyVar.LazyVarInit<Q> init)
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