Don't know, but LOL.
This might be an instancing issue in which special handling is good for this
scenario but seems to be fine for most cases. And in a lazy TDD programming
way it might be good enough.
Although I know from blog and other threads that you look for greatness :-)
and not just code that works. Which is very inspiring now a days, in this
business hour of programming history.
I'll ask arround though, I think I might know someone who might know, and
also is not my mother...
f(t)
On Thu, Nov 20, 2008 at 6:26 PM, Nino Saturnino Martinez Vazquez Wael <
[EMAIL PROTECTED]> wrote:
> I love simple and simple is good. But this approach has issues with
> hibernate if your hibernate sessions are per request and your shadowmodel
> lives in multiple requests and your entities has references to other
> entities for example 1..* etc ... In "simple" use cases, and possibly also
> when not using hibernate this might be fine. This is what I am exploring
> currently. When not attending seminars or talking with people..
>
> Im wondering how eclipselink & openJPA handles the "hibernate lazy load
> problem", according to a oracle guy theres not a problem when using Toplink
> (which now are eclipselink?)
>
> Input on these things are very welcome...
>
> regards Nino
>
>
> Francisco Diaz Trepat - gmail wrote:
>
>> why?
>> simple is good. doesn't need to be complex.
>>
>> what part you dislike the most?
>>
>> f(t)
>>
>> On Thu, Nov 20, 2008 at 2:29 AM, Nino Saturnino Martinez Vazquez Wael <
>> [EMAIL PROTECTED]> wrote:
>>
>>
>>
>>> BTW this is a flawed approch.. We need something a little more
>>> intelligent.. I'll return on the subject..
>>>
>>>
>>> Nino Saturnino Martinez Vazquez Wael wrote:
>>>
>>>
>>>
>>>> heres the raw and completely untested version of it. probably with a
>>>> whole
>>>> bunch of issues...:
>>>>
>>>> package zeuzgroup.web.model;
>>>> import java.lang.reflect.Field;
>>>> import java.util.HashMap;
>>>> import java.util.Map;
>>>> import java.util.Map.Entry;
>>>> import org.apache.wicket.Component;
>>>> import org.apache.wicket.WicketRuntimeException;
>>>> import org.apache.wicket.model.AbstractPropertyModel;
>>>> import org.apache.wicket.model.CompoundPropertyModel;
>>>> import org.apache.wicket.model.IModel;
>>>> import org.apache.wicket.model.IWrapModel;
>>>> public class EditorModel<T> extends CompoundPropertyModel<T> {
>>>> private final Map<String, Object> newValues = new HashMap<String,
>>>> Object>();
>>>> public EditorModel(IModel<T> underlyingModel) {
>>>> super(underlyingModel);
>>>> }
>>>> public void fillOriginal() {
>>>> Class<?> c = this.getObject().getClass();
>>>> for (Entry<String, Object> entry : newValues.entrySet()) {
>>>> try {
>>>> Field t = c.getDeclaredField(entry.getKey());
>>>> t.set(this.getObject(), entry.getValue());
>>>> } catch (Exception e) {
>>>> throw new WicketRuntimeException("Could not set "
>>>> + entry.getKey(), e);
>>>> }
>>>> }
>>>> }
>>>> public <C> IWrapModel<C> wrapOnInheritance(Component component) {
>>>> return new AttachedCompoundPropertyModel<C>(component,
>>>> newValues);
>>>> }
>>>> private class AttachedCompoundPropertyModel<C> extends
>>>> AbstractPropertyModel<C> implements IWrapModel<C> {
>>>> private static final long serialVersionUID = 1L;
>>>> private final Component owner;
>>>> private final Map<String, Object> newValues;
>>>> /**
>>>> * Constructor
>>>> *
>>>> * @param owner
>>>> * component that this model has been attached to
>>>> */
>>>> public AttachedCompoundPropertyModel(Component owner,
>>>> Map<String,Object> map) {
>>>> super(EditorModel.this);
>>>> this.owner = owner;
>>>> this.newValues = map;
>>>> }
>>>> @Override
>>>> public C getObject() {
>>>> if (EditorModel.this.newValues.containsKey(owner.getId()))
>>>> {
>>>> return (C) newValues.get(owner.getId());
>>>> } else {
>>>> return super.getObject();
>>>> }
>>>> }
>>>> @Override
>>>> public void setObject(C object) {
>>>> newValues.put(owner.getId(), object);
>>>> }
>>>> /**
>>>> * @see
>>>> org.apache.wicket.model.AbstractPropertyModel#propertyExpression()
>>>> */
>>>> @Override
>>>> protected String propertyExpression() {
>>>> return EditorModel.this.propertyExpression(owner);
>>>> }
>>>> /**
>>>> * @see org.apache.wicket.model.IWrapModel#getWrappedModel()
>>>> */
>>>> public IModel<T> getWrappedModel() {
>>>> return EditorModel.this;
>>>> }
>>>> /**
>>>> * @see org.apache.wicket.model.AbstractPropertyModel#detach()
>>>> */
>>>> @Override
>>>> public void detach() {
>>>> super.detach();
>>>> EditorModel.this.detach();
>>>> }
>>>> }
>>>> }
>>>> // IComponentAssignedModel / IWrapModel
>>>>
>>>> Francisco Diaz Trepat - gmail wrote:
>>>>
>>>>
>>>>
>>>>> Nice, I was up to something similar.
>>>>>
>>>>> On Tue, Nov 18, 2008 at 9:43 AM, Nino Saturnino Martinez Vazquez Wael <
>>>>> [EMAIL PROTECTED]> wrote:
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>> Hi
>>>>>>
>>>>>> Im trying todo a compoundpropertymodel which does not change original
>>>>>> values in the "original" model. I need this since I am updating some
>>>>>> stuff
>>>>>> in a wizard but I first want to commit when the user confirms in the
>>>>>> end
>>>>>> of
>>>>>> the wizard, and if the model are changed directly the transaction are
>>>>>> automatically committed to the database....
>>>>>>
>>>>>> So my idea were to todo a shadowCompoundPropertyModel something like
>>>>>> this:
>>>>>>
>>>>>> class EditorModel extends CompoundPropertyModel {
>>>>>>
>>>>>> private Map newValues=new HashMap<String, Object>();
>>>>>> public EditorModel(CompoundPropertyModel underlyingModel,
>>>>>> String propertyName) {
>>>>>> super(underlyingModel);
>>>>>> }
>>>>>> public getObject (String property){
>>>>>> check if there are something in the map if so return it, otherwise
>>>>>> fall
>>>>>> back to the underlying model
>>>>>>
>>>>>> } public setObject (String prop, Value){
>>>>>> put changes in the map...
>>>>>> }
>>>>>>
>>>>>> public UpdateOriginal(){
>>>>>> iterate over the map and use reflection to set values on the original
>>>>>> model..
>>>>>>
>>>>>> }
>>>>>>
>>>>>> }
>>>>>>
>>>>>> Does anybody have something similar floating around, in a more
>>>>>> complete
>>>>>> state..? Or could it be done in a easier way?
>>>>>>
>>>>>> --
>>>>>> -Wicket for love
>>>>>>
>>>>>> Nino Martinez Wael
>>>>>> Java Specialist @ Jayway DK
>>>>>> http://www.jayway.dk
>>>>>> +45 2936 7684
>>>>>>
>>>>>>
>>>>>> ---------------------------------------------------------------------
>>>>>> To unsubscribe, e-mail: [EMAIL PROTECTED]
>>>>>> For additional commands, e-mail: [EMAIL PROTECTED]
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>> --
>>> -Wicket for love
>>>
>>> Nino Martinez Wael
>>> Java Specialist @ Jayway DK
>>> http://www.jayway.dk
>>> +45 2936 7684
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: [EMAIL PROTECTED]
>>> For additional commands, e-mail: [EMAIL PROTECTED]
>>>
>>>
>>>
>>>
>>
>>
>>
>
> --
> -Wicket for love
>
> Nino Martinez Wael
> Java Specialist @ Jayway DK
> http://www.jayway.dk
> +45 2936 7684
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>
>
