Re: [Ikvm-developers] Serialization of a java class

[Jeroen F. <je...@su...>]

Antoine Perridy wrote:
> Is it possible to get a java class serializable ?
> , so that the class will be define as [Serializable] in the=20
> code ? in java the class has to implements serializable...in=20
> the generated dll this class uses the interface :=20
> Serializable .__Interface
> Do you know how I can get this class to be [Serializable] ?

You can apply the SerializableAttribute like this:

@cli.System.SerializableAttribute.Annotation
public class MySerializableClass { .. }

But that alone won't get you a .NET serializable class (because
java.lang.Object currently isn't marked [Serializable]). So you need to
extend cli.System.Object or implement ISerializable.

Below are two examples.

Regards,
Jeroen

---- example 1 ----
import cli.System.IO.*;
import cli.System.Runtime.Serialization.*;
import cli.System.Runtime.Serialization.Formatters.Binary.*;

@cli.System.SerializableAttribute.Annotation
public class test extends cli.System.Object
{
  private int i;
  private transient int j;

  public static void main(String[] args) throws Exception
  {
    MemoryStream mem =3D new MemoryStream();
    BinaryFormatter formatter =3D new BinaryFormatter();
    test obj =3D new test();
    obj.i =3D 42;
    obj.j =3D 123;
    formatter.Serialize(mem, obj);
    mem.Seek(0, SeekOrigin.wrap(SeekOrigin.Begin));
    obj =3D (test)formatter.Deserialize(mem);
    System.out.println(obj.i);
    System.out.println(obj.j);
  }
}

---- example 2 ----
import cli.System.IO.*;
import cli.System.Runtime.Serialization.*;
import cli.System.Runtime.Serialization.Formatters.Binary.*;

@cli.System.SerializableAttribute.Annotation
public class test implements ISerializable
{
  private int i;
  private transient int j;

  public test()
  {
  }

  public test(SerializationInfo info, StreamingContext context)
  {
    i =3D info.GetInt32("i");
  }

  public void GetObjectData(SerializationInfo info, StreamingContext
context)
  {
    info.AddValue("i", i);   =20
  }

  public static void main(String[] args) throws Exception
  {
    MemoryStream mem =3D new MemoryStream();
    BinaryFormatter formatter =3D new BinaryFormatter();
    test obj =3D new test();
    obj.i =3D 42;
    obj.j =3D 123;
    formatter.Serialize(mem, obj);
    mem.Seek(0, SeekOrigin.wrap(SeekOrigin.Begin));
    obj =3D (test)formatter.Deserialize(mem);
    System.out.println(obj.i);
    System.out.println(obj.j);
  }
}