org.jboss.ejb.plugins: public class: SessionObjectOutputStream

org.jboss.ejb.plugins
public class: SessionObjectOutputStream [javadoc | source]

java.lang.Object
   java.io.OutputStream
      java.io.ObjectOutputStream
         org.jboss.ejb.plugins.SessionObjectOutputStream

All Implemented Interfaces:
ObjectStreamConstants, ObjectOutput, Closeable, Flushable

The SessionObjectOutputStream is used to serialize stateful session beans when they are passivated

Also see:

org.jboss.ejb.plugins.SessionObjectInputStream

author: < - a href="mailto:rickard.oberg@telkel.com">Rickard Oberg

author: < - a href="mailto:sebastien.alborini@m4x.org">Sebastien Alborini

version: $ - Revision: 66439 $

Constructor:
public SessionObjectOutputStream(OutputStream out) throws IOException { super(out); EnableReplaceObjectAction.enableReplaceObject(this); }

Constructor:

 public SessionObjectOutputStream(OutputStream out) throws IOException {
      super(out);
      EnableReplaceObjectAction.enableReplaceObject(this);
}

Method from org.jboss.ejb.plugins.SessionObjectOutputStream Summary:
replaceObject

Methods from java.io.ObjectOutputStream:
close, defaultWriteObject, flush, putFields, reset, useProtocolVersion, write, write, write, writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeDouble, writeFields, writeFloat, writeInt, writeLong, writeObject, writeShort, writeUTF, writeUnshared

Methods from java.io.OutputStream:
close, flush, write, write, write

Methods from java.lang.Object:
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method from org.jboss.ejb.plugins.SessionObjectOutputStream Detail:
protected Object replaceObject(Object obj) throws IOException { Object replacement = obj; // section 6.4.1 of the ejb1.1 specification states what must be taken care of // ejb reference (remote interface) : store handle if (obj instanceof EJBObject) replacement = ((EJBObject)obj).getHandle(); // ejb reference (home interface) : store handle else if (obj instanceof EJBHome) replacement = ((EJBHome)obj).getHomeHandle(); // session context : store a typed dummy object else if (obj instanceof SessionContext) replacement = new StatefulSessionBeanField(StatefulSessionBeanField.SESSION_CONTEXT); // naming context : the jnp implementation is serializable, do nothing // user transaction : store a typed dummy object else if (obj instanceof UserTransaction) replacement = new StatefulSessionBeanField(StatefulSessionBeanField.USER_TRANSACTION); else if( obj instanceof Handle ) replacement = new HandleWrapper((Handle)obj); else if( (obj instanceof Remote) && !(obj instanceof RemoteStub) ) { Remote remote = (Remote) obj; try { replacement = RemoteObject.toStub(remote); } catch(IOException ignore) { // Let the Serialization layer try with original object } } return replacement; }

Method from org.jboss.ejb.plugins.SessionObjectOutputStream Detail:

 protected Object replaceObject(Object obj) throws IOException {
      Object replacement = obj;
      // section 6.4.1 of the ejb1.1 specification states what must be taken care of 
      // ejb reference (remote interface) : store handle
      if (obj instanceof EJBObject)
         replacement = ((EJBObject)obj).getHandle();
      // ejb reference (home interface) : store handle
      else if (obj instanceof EJBHome)
         replacement = ((EJBHome)obj).getHomeHandle();
      // session context : store a typed dummy object
      else if (obj instanceof SessionContext)
         replacement = new StatefulSessionBeanField(StatefulSessionBeanField.SESSION_CONTEXT);
      // naming context : the jnp implementation is serializable, do nothing
      // user transaction : store a typed dummy object
      else if (obj instanceof UserTransaction)
         replacement = new StatefulSessionBeanField(StatefulSessionBeanField.USER_TRANSACTION);      
      else if( obj instanceof Handle )
         replacement = new HandleWrapper((Handle)obj);
      else if( (obj instanceof Remote) && !(obj instanceof RemoteStub) )
      {
         Remote remote = (Remote) obj;
         try
         {
            replacement = RemoteObject.toStub(remote);
         }
         catch(IOException ignore)
         {
            // Let the Serialization layer try with original object
         }
      }
      return replacement;
}