Package com.google.common.util.concurrent

Class Monitor.Guard

  • Enclosing class:
    Monitor
    @Beta
public abstract static class Monitor.Guard
extends java.lang.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

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      abstract boolean isSatisfied()
      Evaluates this guard's boolean condition.

      • Methods inherited from class java.lang.Object

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

    • Method Detail

      • 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.