xe:objectData - Object has been removed or recycled - xpages

Question

I use an xe:objectData as a datasource for a xp:dataTable. objectData1 uses some Java code to retrieve all documents from a view that match a key ( username ). The Java code looks like this:
package com.isatweb.cois;
import static com.ibm.xsp.extlib.util.ExtLibUtil.getCurrentDatabase;
import static com.ibm.xsp.extlib.util.ExtLibUtil.getCurrentSession;
import java.io.Serializable;
import lotus.domino.Database;
import lotus.domino.Name;
import lotus.domino.Session;
import lotus.domino.View;
import lotus.domino.ViewEntryCollection;
public class ObjectDataVisits implements Serializable {
private static final long serialVersionUID = 1L;
ViewEntryCollection vec = null;
public ObjectDataVisits(){
try {
this.update();
} catch (Exception e) {
System.out.print(e);
}
}
public void update() {
try {
Database _db = getCurrentDatabase();
Session _session = getCurrentSession();
Name nam = _session.createName(_session.getEffectiveUserName());
String username = nam.getAbbreviated().replace(" ", "#").replace("/", "#").toUpperCase();
View view = _db.getView("vw_visit_open");
this.vec = view.getAllEntriesByKey(username);
} catch (Exception e) {
System.out.print(e);
}
}
public ViewEntryCollection getVisits(){
return this.vec;
}
}
The XPage has the following code
When I first load the page, the data is read from the wiew and the dataTable displays the NoteIDs of all matching documents.
When I refresh the page using the button, I get an "Object has been removed or recycled" error.
Can anyone pls. show me what I'm doing wrong? ( and perhaps, how to do it right )

Answer 1

The problem is, that Notes objects are not serializable. During the partial refresh the getVisits() method is executed before the update() method. The ViewEntryCollection is a references to a view, and this view is already recycled.
If you just want to store some note id's then you could store them in a Vector instead. Otherwise you have to call your update() method in your getVisits() method everytime.