I don't think one was ever created and it fell off my radar. If you create one, can you post yours and post a link to it back on this thread?
Thanks! -- Jeremy Thomerson http://www.wickettraining.com On Wed, Sep 30, 2009 at 4:45 PM, Scott Swank <scott.sw...@gmail.com> wrote: > I searched the JIRA for IChainingModel and didn't get any hits. Did > anyone create a JIRA issue? Here's an implementation of mine. > > public class BaseChainingModel implements IChainingModel { > private static final long serialVersionUID = 1L; > private Object target; > > public BaseChainingModel(Object modelObject) { > if (modelObject == null) { > throw new IllegalArgumentException("Parameter > modelObject cannot be null"); > } > else { > target = modelObject; > } > } > > @Override > public void detach() { > if (target instanceof IDetachable) > ((IDetachable) target).detach(); > } > > @Override > public IModel getChainedModel() { > if (target instanceof IModel) > return (IModel) target; > else > return null; > } > > @Override > public void setChainedModel(IModel model) { > target = model; > } > > @Override > public Object getObject() { > Object object = target; > while (object instanceof IModel) { > Object tmp = ((IModel) object).getObject(); > if (tmp == object) { > break; // pathological > } > object = tmp; > } > return object; > } > > @Override > public void setObject(Object obj) { > if (target instanceof IModel) > ((IModel) target).setObject(obj); > else if (obj == null || obj instanceof Serializable) > target = obj; > else > throw new WicketRuntimeException("Model object must > be Serializable"); > } > > } > > Scott > > > On Wed, Apr 8, 2009 at 2:53 PM, Jeremy Thomerson > <jer...@wickettraining.com> wrote: > > I think that's a good idea - I have done a similar thing in my own > > projects. Please open a JIRA so this idea doesn't get lost, but this is > one > > I may try to do soon. > > > > -- > > Jeremy Thomerson > > http://www.wickettraining.com > > > > > > > > On Wed, Apr 8, 2009 at 4:36 PM, Juan G. Arias <juangar...@gmail.com> > wrote: > > > >> Hi all,First of all, I'm using wicket 1.3.5 > >> > >> I'm writing a model and ai need it to be "chaineable". I mean, I need > this > >> model to contain another model, so my model can obtain the data, for > >> example, from a property model. > >> Ok, I've been reading and this is solved by the IChainingModel. > >> > >> But I couldn't find any default implementation of this interface. > >> There are two classes currently implementing this interface, > >> AbstractPropertyModel and CompoundPropertyModel. > >> Both classes has some code duplicated, specifically: > >> - void detach() > >> - IModel getChainedModel() > >> - void setChainedModel(IModel model) > >> - some lines of void setObject(Object object) > >> - the code in CompuntPropertyModel#getObject() and > >> AbstarctPropertyModel#getTarget() is different, but the logic is the > same. > >> > >> And I'm afraid my code will be the same as those classes. > >> > >> So, finally, my point. > >> Is there any default implementation of this behavior? Is there a chance > to > >> add a super-class with this code? > >> > >> Thanks! > >> Juan Arias > >> > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > For additional commands, e-mail: users-h...@wicket.apache.org > >
