This blog article is part of a “series of blog articles” about common pitfalls using JPA and ways to avoid them. In this article, we describe unexpected results of JPQL queries with respect of the query flush mode.
Continue readingAuthor: Michael Bouschen
JPA Pitfalls (9): UPDATE/DELETE and Persistence Context
This blog article is part of a “series of blog articles” about common pitfalls using JPA and ways to avoid them. In this article, we describe bulk the effect of JPQL operations on the EntityManager cache.
Continue readingJPA Pitfalls (8): Navigation of Relationships
This blog article is part of a “series of blog articles” about common pitfalls using JPA and ways to avoid them. In this article, we describe unexpected results of navigational JPQL queries.
Continue readingJPA Pitfalls (7): Null Parameter
This blog article is part of a “series of blog articles” about common pitfalls using JPA and ways to avoid them. In this article, we describe issues with using null parameter values.
Continue readingJPA Pitfalls (6): Query Result with Duplicates
This blog article is part of a “series of blog articles” about common pitfalls using JPA and ways to avoid them. In this article, we describe unexpected duplicates in the result of a JPQL query.
Continue readingJPA Pitfalls (5): Object-Relational Mapping and Inheritance
This blog article is part of a “series of blog articles” about common pitfalls using JPA and ways to avoid them. In this article, we describe possible performance impacts of JPA inheritance mapping strategies.
Continue readingJPA Pitfalls (4): Relationship Owner
This blog article is part of a “series of blog articles” about common pitfalls using JPA and ways to avoid them. In this article, we describe issues with bidirectional relationships.
Continue readingJPA Pitfalls (3): Cascade Persist
This blog article is part of a “series of blog articles” about common pitfalls using JPA and ways to avoid them. In this article, we describe issues of EM.persist with respect to relationships.
Continue readingJPA Pitfalls (2): List or Set Relationship
This blog article is part of a “series of blog articles” about common pitfalls using JPA and ways to avoid them. In this article, we describe the difference between a set or list relationship.
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