I had a similar issue when trying to implement it. I use Chrome by default and it was not working. When I tested it in Firefox, it did work. That made me think it was a browser problem. After digging in a bit more, I found out the “problem” for my case. It might be … Read more
edit: It should be noted that browser support for onload events on CSS files has improved since my original answer. It is not fully supported though, so my answer below still has some relevance. Here is a compatibility chart, not sure how legit the source is though. Ok, I finally found a solution. This guy … Read more
The reason is explained in the Loading Related Data section of the EF Core documentation. The first behavior is because EF Core currently does not support lazy loading, so normally you’ll get null for navigation properties until you specifically load them via eager or explicit loading. However, the Eager loading section contains the following: Tip … Read more
You have to have @Lazy annotation on your component as well at the point where it is @Autowired in. This is because if you don’t have @Lazy on your component, then it is eagerly created as a bean, and if you have don’t have an @Lazy on your @Autowired then again it is eagerly created … Read more
That’s fine and is the typical way of doing it. You will have to declare expensive_object_ as mutable mutable QObject *expensive_object_; mutable basically means “I know I’m in a const object, but modifying this won’t break const-ness.”
Alternatively, you can manually trigger a real scroll event as following: el.dispatchEvent(new CustomEvent(‘scroll’)) Which feels a bit less of a hack (and more performant) than dual scrolling by +1 and -1 pixels… This should run any piece of code listening for a scroll event. Edit: To support IE11 or other legacy browser, consider using a … Read more
As you said, the OpenSessionInView filter is very convenient in web applications. Regarding the limitations you mentioned: 1) Loading several lazy associations will result in multiple database transactions, a possible hit on performance. Yes, going to the DB often might lead to performance problems. Ideally you want to fetch all the data you need in … Read more
I think you should not use the hibernate session transactional methods, but let spring do that. Add this to your spring conf: <bean id=”txManager” class=”org.springframework.orm.hibernate3.HibernateTransactionManager”> <property name=”sessionFactory” ref=”mySessionFactory” /> </bean> <bean id=”transactionTemplate” class=”org.springframework.transaction.support.TransactionTemplate”> <property name=”transactionManager” ref=”txManager”/> </bean> and then I would modify your test method to use the spring transaction template: public static void main(String[] … Read more
To ensure that lazy loading of a navigation property will work after you’ve created the parent you must not create the Survey with the new operator but create it by means of the context instance because it will instantiate a dynamic proxy that is capable to lazily load the related Client. That’s what the DbSet<T>.Create() … Read more