Class AbstractRegistration

  • All Implemented Interfaces:
    AutoCloseable, Registration
    Direct Known Subclasses:
    AbstractObjectRegistration

    public abstract class AbstractRegistration
    extends Object
    implements Registration
    Utility registration handle. It is a convenience for register-style method which can return an AutoCloseable realized by a subclass of this class. Invoking the close() method triggers unregistration of the state the method installed.
    • Constructor Detail

      • AbstractRegistration

        public AbstractRegistration()
    • Method Detail

      • removeRegistration

        protected abstract void removeRegistration()
        Remove the state referenced by this registration. This method is guaranteed to be called at most once. Referenced state must be retained until this method is invoked.
      • isClosed

        public final boolean isClosed()
        Query the state of this registration. Returns true if it was closed. Equivalent of !notClosed().
        Returns:
        true if the registration was closed, false otherwise.
      • notClosed

        public final boolean notClosed()
        Query the state of this registration. Returns false if it was closed. Equivalent of !isClosed().
        Returns:
        false if the registration was closed, true otherwise.
      • close

        public final void close()
        Description copied from interface: Registration
        Unregisters the object. This operation is required not to invoke blocking operations. Implementations which require interaction with outside world must provide guarantees that any work is done behind the scenes and the unregistration process looks as if it has already succeeded once this method returns.
        Specified by:
        close in interface AutoCloseable
        Specified by:
        close in interface Registration