Class SynchronizedShort

java.lang.Object
EDU.oswego.cs.dl.util.concurrent.SynchronizedVariable
EDU.oswego.cs.dl.util.concurrent.SynchronizedShort
All Implemented Interfaces:
Executor, Cloneable, Comparable
Direct Known Subclasses:
WaitableShort
public class SynchronizedShort extends SynchronizedVariable implements Comparable, Cloneable
A class useful for offloading synch for short instance variables.

[ Introduction to this package. ]

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected short
    value_
     

    Fields inherited from class SynchronizedVariable

    lock_

  • Constructor Summary

    Constructors
    Constructor
    Description
    SynchronizedShort(short initialValue)
    Make a new SynchronizedShort with the given initial value, and using its own internal lock.
    SynchronizedShort(short initialValue, Object lock)
    Make a new SynchronizedShort with the given initial value, and using the supplied lock.

  • Method Summary

    Modifier and Type
    Method
    Description
    short
    add(short amount)
    Add amount to value (i.e., set value += amount)
    short
    and(short b)
    Set value to value & b.
    boolean
    commit(short assumedValue, short newValue)
    Set value to newValue only if it is currently assumedValue.
    int
    compareTo(short other)
     
    int
    compareTo(SynchronizedShort other)
     
    int
    compareTo(Object other)
     
    short
    complement()
    Set the value to its complement
    short
    decrement()
    Decrement the value.
    short
    divide(short factor)
    Divide value by factor (i.e., set value /= factor)
    boolean
    equals(Object other)
     
    final short
    get()
    Return the current value
    int
    hashCode()
     
    short
    increment()
    Increment the value.
    short
    multiply(short factor)
    Multiply value by factor (i.e., set value *= factor)
    short
    negate()
    Set the value to the negative of its old value
    short
    or(short b)
    Set value to value | b.
    short
    set(short newValue)
    Set to newValue.
    short
    subtract(short amount)
    Subtract amount from value (i.e., set value -= amount)
    short
    swap(SynchronizedShort other)
    Atomically swap values with another SynchronizedShort.
    String
    toString()
     
    short
    xor(short b)
    Set value to value ^ b.

    Methods inherited from class SynchronizedVariable

    execute, getLock

    Methods inherited from class Object

    clone, finalize, getClass, notify, notifyAll, wait, wait, wait

  • Field Details

    • value_

      protected short value_

  • Constructor Details

    • SynchronizedShort

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

    • SynchronizedShort

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

  • Method Details

    • get

      public final short get()
      Return the current value

    • set

      public short set(short newValue)
      Set to newValue.
      Returns:
      the old value

    • commit

      public boolean commit(short assumedValue, short newValue)
      Set value to newValue only if it is currently assumedValue.
      Returns:
      true if successful

    • swap

      public short swap(SynchronizedShort other)
      Atomically swap values with another SynchronizedShort. Uses identityHashCode to avoid deadlock when two SynchronizedShorts attempt to simultaneously swap with each other. (Note: Ordering via identyHashCode is not strictly guaranteed by the language specification to return unique, orderable values, but in practice JVMs rely on them being unique.)
      Returns:
      the new value

    • increment

      public short increment()
      Increment the value.
      Returns:
      the new value

    • decrement

      public short decrement()
      Decrement the value.
      Returns:
      the new value

    • add

      public short add(short amount)
      Add amount to value (i.e., set value += amount)
      Returns:
      the new value

    • subtract

      public short subtract(short amount)
      Subtract amount from value (i.e., set value -= amount)
      Returns:
      the new value

    • multiply

      public short multiply(short factor)
      Multiply value by factor (i.e., set value *= factor)
      Returns:
      the new value

    • divide

      public short divide(short factor)
      Divide value by factor (i.e., set value /= factor)
      Returns:
      the new value

    • negate

      public short negate()
      Set the value to the negative of its old value
      Returns:
      the new value

    • complement

      public short complement()
      Set the value to its complement
      Returns:
      the new value

    • and

      public short and(short b)
      Set value to value & b.
      Returns:
      the new value

    • or

      public short or(short b)
      Set value to value | b.
      Returns:
      the new value

    • xor

      public short xor(short b)
      Set value to value ^ b.
      Returns:
      the new value

    • compareTo

      public int compareTo(short other)

    • compareTo

      public int compareTo(SynchronizedShort other)

    • compareTo

      public int compareTo(Object other)
      Specified by:
      compareTo in interface Comparable

    • equals

      public boolean equals(Object other)
      Overrides:
      equals in class Object

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • toString

      public String toString()
      Overrides:
      toString in class Object