Class WaitableChar

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

[ Introduction to this package. ]

  • Constructor Details

    • WaitableChar

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

    • WaitableChar

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

  • Method Details

    • set

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

    • commit

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

    • add

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

    • subtract

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

    • multiply

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

    • divide

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

    • whenEqual

      public void whenEqual(char 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(char 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(char 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(char 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(char 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(char 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