Package com.day.cq.commons.jcr

Class JcrObservationThrottle

  • All Implemented Interfaces:
    javax.jcr.observation.EventListener
    @Deprecated
public class JcrObservationThrottle
extends java.lang.Object
implements javax.jcr.observation.EventListener
    Deprecated.
    This was written for CRX single-threaded observation semantics but does not work with Oak which uses multiple threads for observation.
    Used to wait until all queued observation events have been delivered, useful to throttle down operations that modify lots of nodes.

    • Constructor Summary

      Constructors 
      Constructor Description
      JcrObservationThrottle​(javax.jcr.Node tempNodeFolder)
      Deprecated.
      Create a JcrObservationThrottle

    • Method Summary

      All Methods Instance Methods Concrete Methods Deprecated Methods 
      Modifier and Type Method Description
      void close()
      Deprecated.
      MUST be called to clean up, DELETES the temp folder node that was passed to constructor
      void onEvent​(javax.jcr.observation.EventIterator events)
      Deprecated.
       
      void open()
      Deprecated.
      Setup temporary node to detect events, must be called before {link #waitForEvents}
      long waitForEvents()
      Deprecated.
      Block until all pending observation events have been delivered.

      • Methods inherited from class java.lang.Object

        equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • JcrObservationThrottle

        public JcrObservationThrottle​(javax.jcr.Node tempNodeFolder)
        Deprecated.
        Create a JcrObservationThrottle
        Parameters:
        tempNodeFolder - a node with a unique name is created in that folder to detect observation events.

    • Method Detail

      • open

        public void open()
          throws javax.jcr.RepositoryException
        Deprecated.
        Setup temporary node to detect events, must be called before {link #waitForEvents}
        Throws:
        javax.jcr.RepositoryException - if some error occurs

      • close

        public void close()
        Deprecated.
        MUST be called to clean up, DELETES the temp folder node that was passed to constructor

      • onEvent

        public void onEvent​(javax.jcr.observation.EventIterator events)
        Deprecated.
        Specified by:
        onEvent in interface javax.jcr.observation.EventListener

      • waitForEvents

        public long waitForEvents()
                   throws javax.jcr.RepositoryException
        Deprecated.
        Block until all pending observation events have been delivered. As JCR events are delivered in order of their creation, simply creates a new temp node and waits for the corresponding event to be delivered. Note that the Session of the temporary folder node passed to the constructor is saved by this method, in order to create temporary nodes and detect their observation events.
        Returns:
        the elapsed time in msec for this method call.
        Throws:
        javax.jcr.RepositoryException - if some error occurs