Class WaitableDouble

java.lang.Object
EDU.oswego.cs.dl.util.concurrent.SynchronizedVariable
EDU.oswego.cs.dl.util.concurrent.SynchronizedDouble
EDU.oswego.cs.dl.util.concurrent.WaitableDouble
All Implemented Interfaces:
Executor, Cloneable, Comparable
public class WaitableDouble extends SynchronizedDouble
A class useful for offloading waiting and signalling operations on single double variables.

[ Introduction to this package. ]

  • Constructor Details

    • WaitableDouble

      public WaitableDouble(double initialValue)
      Make a new WaitableDouble with the given initial value, and using its own internal lock.

    • WaitableDouble

      public WaitableDouble(double initialValue, Object lock)
      Make a new WaitableDouble with the given initial value, and using the supplied lock.

  • Method Details

    • set

      public double set(double newValue)
      Description copied from class: SynchronizedDouble
      Set to newValue.
      Overrides:
      set in class SynchronizedDouble
      Returns:
      the old value

    • commit

      public boolean commit(double assumedValue, double newValue)
      Description copied from class: SynchronizedDouble
      Set value to newValue only if it is currently assumedValue.
      Overrides:
      commit in class SynchronizedDouble
      Returns:
      true if successful

    • add

      public double add(double amount)
      Description copied from class: SynchronizedDouble
      Add amount to value (i.e., set value += amount)
      Overrides:
      add in class SynchronizedDouble
      Returns:
      the new value

    • subtract

      public double subtract(double amount)
      Description copied from class: SynchronizedDouble
      Subtract amount from value (i.e., set value -= amount)
      Overrides:
      subtract in class SynchronizedDouble
      Returns:
      the new value

    • multiply

      public double multiply(double factor)
      Description copied from class: SynchronizedDouble
      Multiply value by factor (i.e., set value *= factor)
      Overrides:
      multiply in class SynchronizedDouble
      Returns:
      the new value

    • divide

      public double divide(double factor)
      Description copied from class: SynchronizedDouble
      Divide value by factor (i.e., set value /= factor)
      Overrides:
      divide in class SynchronizedDouble
      Returns:
      the new value

    • whenEqual

      public void whenEqual(double c, Runnable action) throws InterruptedException
      Wait until value equals c, then run action if nonnull. The action is run with the synchronization lock held.
      Throws:
      InterruptedException

    • whenNotEqual

      public void whenNotEqual(double c, Runnable action) throws InterruptedException
      wait until value not equal to c, then run action if nonnull. The action is run with the synchronization lock held.
      Throws:
      InterruptedException

    • whenLessEqual

      public void whenLessEqual(double c, Runnable action) throws InterruptedException
      wait until value less than or equal to c, then run action if nonnull. The action is run with the synchronization lock held.
      Throws:
      InterruptedException

    • whenLess

      public void whenLess(double c, Runnable action) throws InterruptedException
      wait until value less than c, then run action if nonnull. The action is run with the synchronization lock held.
      Throws:
      InterruptedException

    • whenGreaterEqual

      public void whenGreaterEqual(double c, Runnable action) throws InterruptedException
      wait until value greater than or equal to c, then run action if nonnull. The action is run with the synchronization lock held.
      Throws:
      InterruptedException

    • whenGreater

      public void whenGreater(double c, Runnable action) throws InterruptedException
      wait until value greater than c, then run action if nonnull. The action is run with the synchronization lock held.
      Throws:
      InterruptedException