Yes, there is a way to do it. Here's an example. I don't know if this is the
best way to do it, but it works.

package mypackage1;
import java.io.StringReader;
import org.exolab.castor.xml.MarshalException;
import org.exolab.castor.xml.ValidationException;
import org.apache.xml.serialize.XMLSerializer;
import org.exolab.castor.xml.Unmarshaller;
import org.xml.sax.InputSource;

public class Tester  {

   public static void main(String[] args) {
      String xml = "<DataBean><value1>foo</value1></DataBean>";
      StringReader sr = new StringReader(xml);
      InputSource is = new InputSource(sr);
      Unmarshaller um = new Unmarshaller();
      try {
          DataBean dataBean = (DataBean)um.unmarshal(DataBean.class, is);
          System.out.println("value1 is " + dataBean.getValue1());
      }
      catch (MarshalException e) {
          e.printStackTrace();
      }
      catch (ValidationException e) {
           e.printStackTrace();
      }
   }
}