I was asked several times when I will offer the next in-person workshop of my Advanced Hibernate Online Training or the Hibernate Performance Tuning Online Training. In the past, I had teamed up with training companies or conference organizers to … [Continue reading] about Announcing 2 In-Person Workshops in December
Databases use the data types BLOB (binary large object) and CLOB (character large object) to store large objects, like images and very long texts. JPA and Hibernate provide two kinds of mappings for these types. You can choose if you want to: … [Continue reading] about Mapping BLOBs and CLOBs with Hibernate and JPA
Hibernate Tips is a series of posts in which I describe a quick and easy solution for common Hibernate questions. If you have a question for a future Hibernate Tip, please post a comment below. Question: In one of the previous Hibernate … [Continue reading] about Hibernate Tips: How to Prevent the Removal of a Parent Entity with Children
Spring Data JPA provides various options to define and execute queries. All of them use JPA's query capabilities but make them a lot easier to use. You can: reference a named native or JPQL query, derive queries from the name of a repository … [Continue reading] about How to Use Named Queries with Spring Data JPA
Mapping a primary key column with JPA and Hibernate is simple. You just need to add an attribute to your entity, make sure that its type and name match the database column, annotate it with @Column and you're done. You can then use the primary key to … [Continue reading] about 5 Primary Key Mappings for JPA and Hibernate Every Developer Should Know