This is a sample of code that I use to properly instantiate a dto
public IList<TopicDto> Get_TopicData()
{
ITopicView _view = base.GetView<ITopicView>();
IList<TopicDto> retVal = null;
m_session = SessionManager.SessionFactory.GetCurrentSession();
ICriteria crit = m_session.CreateCriteria<Topic>();
IList<Topic> topics = new
GenericDAOImpl<Topic>(m_session).GetByCriteria(crit);
if (topics.Count > 0)
{
retVal = (from topic in topics
select new TopicDto
{
TopicID = topic.Id,
PersonID = topic.Sponsor.Id,
TopicName = topic.TopicName,
Sponsor = topic.Sponsor.FirstName + " " +
topic.Sponsor.LastName,
Created = topic.Created,
cntQuestion = topic.Questions.Count()
}).ToList<TopicDto>();
}
crit = null;
topics = null;
m_session = null;
return retVal;
}
The TopicDTO is defined in its own class of cours.
John Davidson
On Sun, Mar 13, 2011 at 6:06 PM, José F. Romaniello
<[email protected]>wrote:
> ditto.
> Who wants half object?
>
>
> 2011/3/13 John Davidson <[email protected]>
>
>> And what happens when a flush occurs? How does NHibernate know to ignore
>> these partial objects, or how does it handle them if what was partial now
>> became a full object that you do want to save.
>>
>> As mentioned above, seems to be _very_ dangerous.
>>
>> John Davidson
>>
>>
>> On Sun, Mar 13, 2011 at 4:32 PM, Vikram Nayak <[email protected]>wrote:
>>
>>> This query will return a list of Business objects, but with only the
>>>
>>> specified fields instantiated. Note that this is a powerful
>>> technique, as the presentation layer may use ordinary business classes
>>> instead of data transfer objects, without having to know the details
>>> of the querying techniques being used
>>> Vikram
>>> Make a loan, Make a difference - Kiva.org
>>>
>>>
>>>
>>> On Sun, Mar 13, 2011 at 12:28 PM, Fabio Maulo <[email protected]>wrote:
>>>
>>>> On Sun, Mar 13, 2011 at 4:08 PM, Vikram Nayak
>>>> <[email protected]>wrote:
>>>>
>>>>> Yes, but instead of returning a object[] or a CustomDTO it would be
>>>>> nice to be able to return the root entity initialized with only the
>>>>> fields specified in the query.
>>>>>
>>>>
>>>> eh?
>>>>
>>>> --
>>>> Fabio Maulo
>>>>
>>>>
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>>>
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