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java.lang.Objectedu.emory.mathcs.backport.java.util.concurrent.atomic.AtomicBoolean
A boolean value that may be updated atomically. See the
edu.emory.mathcs.backport.java.util.concurrent.atomic
package specification for
description of the properties of atomic variables. An
AtomicBoolean is used in applications such as atomically
updated flags, and cannot be used as a replacement for a
Boolean
.
Constructor Summary | |
---|---|
AtomicBoolean()
Creates a new AtomicBoolean with initial value false. |
|
AtomicBoolean(boolean initialValue)
Creates a new AtomicBoolean with the given initial value. |
Method Summary | |
---|---|
boolean |
compareAndSet(boolean expect,
boolean update)
Atomically sets the value to the given updated value if the current value == the expected value. |
boolean |
get()
Returns the current value. |
boolean |
getAndSet(boolean newValue)
Atomically sets to the given value and returns the previous value. |
void |
lazySet(boolean newValue)
Eventually sets to the given value. |
void |
set(boolean newValue)
Unconditionally sets to the given value. |
java.lang.String |
toString()
Returns the String representation of the current value. |
boolean |
weakCompareAndSet(boolean expect,
boolean update)
Atomically sets the value to the given updated value if the current value == the expected value. |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
public AtomicBoolean(boolean initialValue)
initialValue
- the initial valuepublic AtomicBoolean()
Method Detail |
public final boolean get()
public final boolean compareAndSet(boolean expect, boolean update)
expect
- the expected valueupdate
- the new value
public boolean weakCompareAndSet(boolean expect, boolean update)
expect
- the expected valueupdate
- the new value
public final void set(boolean newValue)
newValue
- the new valuepublic final void lazySet(boolean newValue)
newValue
- the new valuepublic final boolean getAndSet(boolean newValue)
newValue
- the new value
public java.lang.String toString()
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