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Monitor.Guard (Guava: Google Core Libraries for Java 11.0.1 API)
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com.google.common.util.concurrent
Class Monitor.Guard
java.lang.Object
com.google.common.util.concurrent.Monitor.Guard
- Enclosing class:
- Monitor
@Beta
public abstract static class Monitor.Guard
- extends Object
A boolean condition for which a thread may wait. A Guard
is associated with a single
Monitor
. The monitor may check the guard at arbitrary times from any thread occupying
the monitor, so code should not be written to rely on how often a guard might or might not be
checked.
If a Guard
is passed into any method of a Monitor
other than the one it is
associated with, an IllegalMonitorStateException
is thrown.
- Since:
- 10.0
Constructor Summary | |
---|---|
protected |
Monitor.Guard(Monitor monitor)
|
Method Summary | |
---|---|
boolean |
equals(Object other)
|
int |
hashCode()
|
abstract boolean |
isSatisfied()
Evaluates this guard's boolean condition. |
Methods inherited from class java.lang.Object |
---|
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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Monitor.Guard
protected Monitor.Guard(Monitor monitor)
Method Detail |
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isSatisfied
public abstract boolean isSatisfied()
- Evaluates this guard's boolean condition. This method is always called with the associated
monitor already occupied. Implementations of this method must depend only on state protected
by the associated monitor, and must not modify that state.
equals
public final boolean equals(Object other)
hashCode
public final int hashCode()
|
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