The Java Persistence API (JPA) is a Java specification for accessing, persisting, and managing data between Java objects/classes and a relational database.
I would like to load all objects that have a textual tag set to any of a small but arbitrary …
sql orm jpa jpql named-queryI have tried to write a query statement with a subquery and an IN expression for many times. But I …
jpa subquery jpa-2.0 criteria-api in-subqueryI am a little confused about the JPA 2.0 orphanRemoval attribute. I think I can see it is needed when I …
hibernate jpa cascade cascading-deletes orphan-removalI have very simple persistance.xml file: <?xml version="1.0" encoding="UTF-8"?> <persistence version="1.0" xmlns="http://java.sun.…
java hibernate orm jpa annotationsSo I have looked at various tutorials about JPA with Spring Data and this has been done different on many …
java spring jpa spring-data spring-data-jpaI am trying to edit a table in Postgresql using JPA in Glassfish using EclipseLink. When I insert an entity, …
java postgresql orm jpa eclipselinkI have a problem with a simple @OneToMany mapping between a parent and a child entity. All works well, only …
java jpa jpa-1.0