Choosing the right FetchType is one of the most important decisions when defining your entity mapping. It specifies when your JPA implementation, e.g., Hibernate, fetches associated entities from the database. You can choose between EAGER and LAZY loading. The first one fetches an association immediately, and the other only when you use it. I explain…
Which data type should you use to map a to-many association with Hibernate? Is it better to use a Set or a List? That’s a very common question, and most developers are surprised when they look at the documentation and find out that these are not the only options. You can also use a Bag…
The CascadeTypes REMOVE and ALL, which includes REMOVE, provide a comfortable option to remove an entity together with all its child entities. But it creates several issues for to-many associations, and you should only use it for to-one relationships.
