Package org.apache.derby.iapi.services.monitor

Interface DerbyObserver

All Known Implementing Classes:
AllocPage, BaseContainerHandle, BasePage, CachedPage, ContainerActionOnCommit, ContainerHandleActionOnCommit, DropOnCommit, StoredPage, StreamFileContainerHandle, SyncOnCommit, TruncateOnCommit
public interface DerbyObserver

Created to provide the Observable behavior which Derby has depended on since Java 1.2 but which as deprecated in JDK 9 build 118. A DerbyObserver is an object which registers it interest in being notified when events occur.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    update(DerbyObservable observable, Object extraInfo)
    This is the callback method which is invoked when a change happens to the object which is being observed.

  • Method Details

    • update

      void update(DerbyObservable observable, Object extraInfo)
      This is the callback method which is invoked when a change happens to the object which is being observed.
      Parameters:
      observable - The object which is being observed
      extraInfo - Extra information being passed to the callback