Hi all, I'm a bit concerned about onSelectionChanged event effectively binding my model. Suppose my model is a LoadableDetachableModel that is loaded from the repository every time. Normally (upon form submission) nothing will be bound after successfully passing validation; then additional logic will run inside a transactional service and a rollback thrown if something goes wrong (take into account that I'm using session-in-view). But if a property of my model object is bound outside this controlled scenario, the change will be persisted upon session correct finalization, even if the object is invalid. I observed that during onSelectionChanged execution the changed property is effectively bound, so how should I deal with this? Here is an example with a simple User that has a sex property allowing the usual two values, note how setSex is called during execution of onSelectionChanged:
The ouput for onSelectionChanged -------------------------------------------------- loadSexModel getSex setSex <------- here getSex selectionChanged getSex The user domain entity. ---------------------------------- public class User implements Serializable { [...] private String sex; [...] public String getSex() { System.out.println("getSex"); return sex; } public void setSex(String sex) { System.out.println("setSex"); this.sex = sex; } } The sex choice. ---------------------- DropDownChoice sex = new DropDownChoice("sex", getSexModel()) { protected void onSelectionChanged(Object newSelection) { System.out.println("selectionChanged"); } protected boolean wantOnSelectionChangedNotifications() { return true; } }; The sex model. --------------------- private IModel getSexModel() { return new LoadableDetachableModel() { protected Object load() { System.out.println("loadSexModel"); return Arrays.asList("Masculine", "Feminine"); } }; } Cheers, Carlos ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user