On 03/02/10 11:55, marioosh.net wrote:
Sorry for my poor english ;)
I have ListView and model like below. I need tabs to reload sometimes,
so my model is dynamic and get tabs from database.
But i see that something is wrong. When i want to get Tab object by
getModelObject() in populateItem method i suppoused that i got it
directly, but i see that all the times the getObject() method of model
is triggered making for all items new list (new db request) !
That's exactly what is supposed to happen, as getModelObject() is just a
shorthand for getModel().getObject(). And in your getObject(), you do
the database request.
If you need to avoid those database reloads, look into
LoadableDetachableModels.
-- Thomas
How to get Tab objects for items without making wasting time database
request ???
IModel model = new IModel() {
public Object getObject() {
System.out.println("getObject...");
...
// getting list from DB
List<Tab> list = ....;
return list;
}
public void setObject(Object object) {}
public void detach() {
}};
ListView tabs = new ListView("tabs", model) {
@Override
protected void populateItem(ListItem item) {
item.getModelObject(); /*<------------- new
list, and new list,
and new list...... :(
}
};
--
-------------------------------------------------------------------
Thomas Kappler thomas.kapp...@isb-sib.ch
Swiss Institute of Bioinformatics Tel: +41 22 379 51 89
CMU, rue Michel Servet 1
1211 Geneve 4
Switzerland http://www.uniprot.org
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