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Préférences
Moteurs de recherche
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JavaTM 2 Platform Std. Ed. v1.5.0
java.util.concurrent.atomic
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Constructor Summary | |
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protected |
AtomicLongFieldUpdater()
Protected do-nothing constructor for use by subclasses. |
Method Summary | ||
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long |
addAndGet(T obj,
long delta)
Atomically add the given value to current value. |
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abstract boolean |
compareAndSet(T obj,
long expect,
long update)
Atomically set the value of the field of the given object managed by this Updater to the given updated value if the current value == the expected value. |
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long |
decrementAndGet(T obj)
Atomically decrement by one the current value. |
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abstract long |
get(T obj)
Get the current value held in the field by the given object. |
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long |
getAndAdd(T obj,
long delta)
Atomically add the given value to current value. |
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long |
getAndDecrement(T obj)
Atomically decrement by one the current value. |
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long |
getAndIncrement(T obj)
Atomically increment by one the current value. |
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long |
getAndSet(T obj,
long newValue)
Set to the given value and return the old value. |
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long |
incrementAndGet(T obj)
Atomically increment by one the current value. |
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static
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newUpdater(Class<U> tclass,
String fieldName)
Creates an updater for objects with the given field. |
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abstract void |
set(T obj,
long newValue)
Set the field of the given object managed by this updater. |
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abstract boolean |
weakCompareAndSet(T obj,
long expect,
long update)
Atomically set the value of the field of the given object managed by this Updater to the given updated value if the current value == the expected value. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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protected AtomicLongFieldUpdater()
Method Detail |
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public static <U> AtomicLongFieldUpdater<U> newUpdater(Class<U> tclass, String fieldName)
tclass
- the class of the objects holding the fieldfieldName
- the name of the field to be updated.
IllegalArgumentException
- if the field is not a
volatile long type.
RuntimeException
- with a nested reflection-based
exception if the class does not hold field or is the wrong type.public abstract boolean compareAndSet(T obj, long expect, long update)
obj
- An object whose field to conditionally setexpect
- the expected valueupdate
- the new value
ClassCastException
- if obj is not an instance
of the class possessing the field established in the constructor.public abstract boolean weakCompareAndSet(T obj, long expect, long update)
obj
- An object whose field to conditionally setexpect
- the expected valueupdate
- the new value
ClassCastException
- if obj is not an instance
of the class possessing the field established in the constructor.public abstract void set(T obj, long newValue)
obj
- An object whose field to setnewValue
- the new valuepublic abstract long get(T obj)
obj
- An object whose field to get
public long getAndSet(T obj, long newValue)
obj
- An object whose field to get and setnewValue
- the new value
public long getAndIncrement(T obj)
obj
- An object whose field to get and set
public long getAndDecrement(T obj)
obj
- An object whose field to get and set
public long getAndAdd(T obj, long delta)
obj
- An object whose field to get and setdelta
- the value to add
public long incrementAndGet(T obj)
obj
- An object whose field to get and set
public long decrementAndGet(T obj)
obj
- An object whose field to get and set
public long addAndGet(T obj, long delta)
obj
- An object whose field to get and setdelta
- the value to add