//     $Revision: 1.1.2.2 $
package com.kabira.snippets.store;

import com.kabira.platform.LockMode;
import com.kabira.platform.ManagedObject;
import com.kabira.platform.Transaction;
import com.kabira.platform.annotation.Managed;
import com.kabira.store.Extent;

/**
 * Secondary store notifier life-cycle
 * <p>
 * <h2> Target Nodes</h2>
 * <ul>
 * <li> <b>domainnode</b> = A
 * </ul>
 */
public class LifeCycle
{
    @Managed
    private static class A { };
    
    private static class ExtentNotifier extends Extent<A>
    {
        public ExtentNotifier()
        {
            super(A.class);
        }

        @Override
        public void extent(Class<? extends A> type, LockMode lockMode)
        {
            // do something interesting here
        }
    }
    
    /**
     * Main entry point
     * @param args  Not used
     */    
    public static void main(final String [ ] args)
    {
        //
        //  Install an extent notifier for managed class A
        //
        new Transaction("Install")
        {
            @Override
            protected void run() throws Transaction.Rollback
            {
                m_notifier = new ExtentNotifier();
            }
        }.execute();
        
        //
        //  Remove the extent notifier for managed class A
        //
        new Transaction("Remove")
        {
            @Override
            protected void run() throws Transaction.Rollback
            {
                ManagedObject.delete(m_notifier);
                m_notifier = null;
            }
        }.execute();
        
        //
        //  Re-install an extent notifier for managed class A
        //  This notifier will be removed when the JVM is stopped
        //
        new Transaction("Re-Install")
        {
            @Override
            protected void run() throws Transaction.Rollback
            {
                m_notifier = new ExtentNotifier();
            }
        }.execute();
    }
    
    private static ExtentNotifier m_notifier;
}