Is eager loading better than lazy loading?

Lazy Loading vs. Eager Loading. While lazy loading delays the initialization of a resource, eager loading initializes or loads a resource as soon as the code is executed. Eager loading also involves pre-loading related entities referenced by a resource.

What is lazy loading in NHibernate?

A more thorough answer: Lazy loading is the default in NHibernate. So if you are not doing anything to circumvent it, you are going to use lazy loading. With lazy loading you can use nested objects (with many relationships to other tables) and it is going to work fine. They are loaded from the database as needed.

What is the difference between eager loading and lazy loading in JAQL?

Lazy loading in Entity Framework is the default phenomenon that happens for loading and accessing the related entities. However, eager loading is referred to the practice of force-loading all these relations.

When should I use eager loading?

Use Eager Loading when you are sure that you will be using related entities with the main entity everywhere. Use Lazy Loading when you are using one-to-many collections. Use Lazy Loading when you are sure that you are not using related entities instantly.

Why is lazy vs eager initialization preferred?

Lazy initialization is technique were we restrict the object creation until its created by application code. This saves the memory from redundant objects which some time may be very big/heavy. In other way eager initialization creates the object in advance and just after starting the application or module.

When should you not use lazy loading?

When you SHOULDN’T use lazy load:

  1. You have images above the fold. (it delays your header/banner load)
  2. You have a store.
  3. Doing it only to fool pagespeed scores.
  4. You’ve got a CDN.
  5. Have only a few images on each page.
  6. You have a fast-loading website and strong server.

How do you use fluent NHibernate?

Basic Setup of Fluent NHibernate

  1. Step 1: Create the Database and Table.
  2. Step 2: Create a Console App (.
  3. Step 3: Create Your Entities/Classes.
  4. Step 4: Create the Mapping (Entities to DB Tables)
  5. Step 5: Create the NHibernate Configuration.
  6. Step 6: Read and Write to the DB Table.

What is the difference between lazy & eager fetch?

LAZY: It fetches the child entities lazily i.e at the time of fetching parent entity it just fetches proxy(created by cglib or any other utility) of the child entities and when you access any property of child entity then it is actually fetched by hibernate. EAGER: it fetches the child entities along with parent.

What is the difference between FirstOrDefault and SingleOrDefault?

SingleOrDefault() – Same as Single(), but it can handle the null value. First() – There is at least one result, an exception is thrown if no result is returned. FirstOrDefault() – Same as First(), but not thrown any exception or return null when there is no result.