~~Title: Serialization of Objects~~

As already mentioned under [[jvx:communication:connections|Connections]], objects are serialized during the transmission between client and enterprise tier. However, instead of the standard Java serialization, special technology-independent serialization mechanisms are used. 

The so-called serializers have to fulfill the ISerializer interface.

== Why Specific Serializers? ==

The communication between Java and C#, Flex, etc. would hardly be possible using standard Java serialization or the Java serialization would have to be taken over. The effort would be enormous.

Existing serializing frameworks, such as [[http://hessian.caucho.com/|Hessian]], do not support all necessary objects, such as BigDecimal.

For this reason, a separate serializer was implemented, the UniversalSerializer.

However, using the definition of ISerializer, frameworks such as Hessian can be integrated in JVx.

== Example ==

We want to implement a serializer that uses the standard Java serialization.

<file java JavaSerializer.java>
public class JavaSerializer implements ISerializer
{
   public Object read(DataInputStream in) throws Exception
   {
      ObjectInputStream ois = new ObjectInputStream(in);

      return ois.readObject();
   }
   
   public void write(DataOutputStream out, Object object) throws Exception
   {
      ObjectOutputStream oos = new ObjectOutputStream(out);
      
      oos.writeObject(object);
   }
}
</file>