hi,
I tried the "Updating an Object" (using detachable property) example given here<http://code.google.com/appengine/docs/java/datastore/creatinggettinganddeletingdata.html#Updating_an_Object>. Later I found that even if I do not add *detachable="true" *property to my JDO class it works without any problem. Is it ok to work without detachable property or it just worked with my case. Following is the code I tried : @PersistenceCapable(identityType = IdentityType.APPLICATION) public class Data{ @SuppressWarnings("unused") @PrimaryKey @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) private Long id; @Persistent private String value; public Data(String value){ this.value = value; } public void setValue(String value){ this.value = value; } public String getValue(){ return this.value; } } public class Main extends HttpServlet { public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException{ doReq(req, resp); } public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException{ doReq(req, resp); } private void doReq(HttpServletRequest req, HttpServletResponse resp) throws IOException{ Data data = new Data("some value"); PrintWriter out = resp.getWriter(); PersistenceManager pm = PMF.get().getPersistenceManager(); pm.makePersistent(data); pm.close(); chageValue(data); out.close(); } @SuppressWarnings("unchecked") private void chageValue(Data data){ PersistenceManager pm = PMF.get().getPersistenceManager(); data.setValue("some other value."); pm.makePersistent(data); pm.close(); } } --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en -~----------~----~----~----~------~----~------~--~---
