54 | IN expression in a Criteria Query, it is written that ObjectDB is 100% compatible with JPA. However, I have problem with this JPQL query ... .employeeEntity = e) ORDER BY e.name with Hibernate, there was no problem with this query, but ObjectDB throws exception: com.objectdb.o.UserException: Unexpected query token 'EXISTS' Second problem |
52 | Query results are not up to date for entities, not primitivesWhen using the CriteriaBuilder to query, the loaded list are not refreshed according to the latest updates. But, when using the JPQL Query, the list are refreshed, and, when I querying for primitive ... side does not any diference. The problem is only solved when changing the query mode, from |
51 | How to convert a boolean to an int in the query?How to convert a boolean to an int in the query? I have five parameters of type boolean in ... , approvePhoneNumber, .... because the parameters equivalent. I want to sort them in the query by their sum ... queries. It is possible to add this to ObjectDB in future versions, but using a pre-calculated |
11 | javax.persistence.criteria.Subquery a subquery root correlated to a root of the enclosing query. Create a subquery root correlated to a root of the enclosing query. Parameters: parentRoot - a root of the containing query Returns: subquery ... correlated to a join object of the enclosing query. Create a subquery join object correlated to a join object |
10 | Retrieving JPA Entity Objects of an entity object. Retrieval by Query The most flexible method for retrieving objects from the database is to use queries. The official query language of JPA is JPQL (Java Persistence Query Language). It enables retrieval of objects from the database by using simple queries as well as complex, sophisticated |
10 | javax.persistence.EntityManager key, and to query over entities. The set of entities that can be managed by a given EntityManager ... database. Since: JPA 1.0 See Also: Query TypedQuery CriteriaQuery PersistenceContext Learn how to use ... on the EntityManager instance and any Query and TypedQuery objects obtained from it will throw |
10 | JPA Reference (JavaDoc)Java/JPA API Reference (based on the JPA 3 JavaDoc) |
2 | Step 3: Add a Main Class the database: Query q1 = em.createQuery("SELECT COUNT(p) FROM Point p ... : Query q2 = em.createQuery("SELECT AVG(p.x) FROM Point p"); System.out.println("Average X ... : TypedQuery<Point> query = em.createQuery("SELECT p FROM Point p", Point.class |
2 | Step 3: Add a Main Class of Point objects in the database: Query q1 = em.createQuery("SELECT COUNT(p) FROM Point p ... value: Query q2 = em.createQuery("SELECT AVG(p.x) FROM Point p ... the database: TypedQuery<Point> query = em.createQuery("SELECT p FROM Point p", Point |
1 | JDO Reference (JavaDoc)Java/JDO API Reference (based on the JDO 2.2 JavaDoc) |
