Class SynchronizedChar

    • Field Detail

      • value_

        protected char value_
    • Constructor Detail

      • SynchronizedChar

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

        public SynchronizedChar​(char initialValue,
                                Object lock)
        Make a new SynchronizedChar with the given initial value, and using the supplied lock.
    • Method Detail

      • get

        public final char get()
        Return the current value
      • set

        public char set​(char newValue)
        Set to newValue.
        Returns:
        the old value
      • commit

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

        public char swap​(SynchronizedChar other)
        Atomically swap values with another SynchronizedChar. Uses identityHashCode to avoid deadlock when two SynchronizedChars 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
      • add

        public char add​(char amount)
        Add amount to value (i.e., set value += amount)
        Returns:
        the new value
      • subtract

        public char subtract​(char amount)
        Subtract amount from value (i.e., set value -= amount)
        Returns:
        the new value
      • multiply

        public char multiply​(char factor)
        Multiply value by factor (i.e., set value *= factor)
        Returns:
        the new value
      • divide

        public char divide​(char factor)
        Divide value by factor (i.e., set value /= factor)
        Returns:
        the new value
      • compareTo

        public int compareTo​(char other)
      • hashCode

        public int hashCode()
        Overrides:
        hashCode in class Object