Class ConcurrentHashMap.Segment

java.lang.Object
EDU.oswego.cs.dl.util.concurrent.ConcurrentHashMap.Segment
All Implemented Interfaces:
Serializable
Enclosing class:
ConcurrentHashMap

protected static final class ConcurrentHashMap.Segment extends Object implements Serializable
Bookkeeping for each concurrency control segment. Each segment contains a local count of the number of elements in its region. However, the main use of a Segment is for its lock.
See Also:
  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected int
    The number of elements in this segment's region.
  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    protected
     
  • Method Summary

    Modifier and Type
    Method
    Description
    protected int
    Get the count under synch.
    protected void
    Force a synchronization

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
  • Field Details

    • count

      protected int count
      The number of elements in this segment's region. It is always updated within synchronized blocks.
  • Constructor Details

    • Segment

      protected Segment()
  • Method Details

    • getCount

      protected int getCount()
      Get the count under synch.
    • synch

      protected void synch()
      Force a synchronization