JPA
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Enterprise Java
JPA 2 | Dynamic Queries Vs Named Queries
JPA has its own Query language called JPQL. JPQL is very similar to SQL, with one major difference being that…
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Enterprise Java
JPA 2 | EntityManagers, Transactions and everything around it
Introduction One of the most confusing and unclear thing for me, as a Java Developer has been the mystery surrounding the Transaction…
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Enterprise Java
Mapping enums done right with @Convert in JPA 2.1
If you ever worked with Java enums in JPA you are definitely aware of their limitations and traps. Using enum…
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Enterprise Java
Spring JPA Data + Hibernate + MySQL + Maven
Development of web-applications with the help of Spring MVC implies creation of several logical layers of architecture. One of the…
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Enterprise Java
JPA – Querydsl Projections
In my last post: JPA – Basic Projections – I’ve mentioned about two basic possibilities of building JPA Projections. This…
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Enterprise Java
JPA – Should I become a laziness extremist?
When you spoke with the Developers about mapping objects to relational databases, they very often complain about poor JPA performance,…
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Enterprise Java
Introducing EclipseLink JPA-RS
In a previous series of posts I covered how to create a JAX-RS service that leveraged JPA for the persistence…
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Enterprise Java
JPA: Determining the Owning Side of a Relationship
When using the Java Persistence API (JPA) it is often necessary to create relationships between two entities. These relationships are…
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Enterprise Java
JPA – Hibernate – Type mapping on package level
When we are finally mature enough to use some custom types mapping in JPA, we usually stuck with some provider…
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