Package com.oracle.coherence.concurrent

Class Latches

java.lang.Object
com.oracle.coherence.concurrent.Latches
public class Latches extends Object
Factory methods for various distributed countdown latch implementations.
Since:
21.12
Author:
as, lh 2021.11.17

  • Field Details

    • SESSION_NAME

      public static final String SESSION_NAME
      The session name.

  • Constructor Details

    • Latches

      public Latches()

  • Method Details

    • remoteCountDownLatch

      public static RemoteCountDownLatch remoteCountDownLatch(String sName, int count)
      Return a singleton instance of a RemoteCountDownLatch with a specified name and count.
      Parameters:
      sName - the cluster-wide, unique name of the countdown latch
      count - the initial count of the countdown latch
      Returns:
      an instance of a RemoteCountDownLatch with a specified name and count

    • localCountDownLatch

      public static LocalCountDownLatch localCountDownLatch(String sName, int count)
      Return a singleton instance of a LocalCountDownLatch with a specified name and initial count.

      The specified latch count is only relevant during the initial latch creation, and is ignored if the latch already exists in the current process. That means that the returned latch instance could have a different count from the one requested.

      Parameters:
      sName - the process-wide, unique name of the latch
      count - the initial latch count; ignored if the latch already exists
      Returns:
      an instance of a local countdown latch with a specified name

    • removeCountDownLatch

      protected static void removeCountDownLatch(String sName)
      Remove the named countdown latch.
      Parameters:
      sName - the name of the latch

    • session

      protected static Session session()
      Return Coherence Session for the Latches module.
      Returns:
      Coherence Session for the Latches module

    • latchesMap

      protected static NamedMap<String,com.oracle.coherence.concurrent.internal.LatchCounter> latchesMap()
      Return Coherence NamedMap containing the countdown latches state.
      Returns:
      Coherence NamedMap containing the countdown latches state