I\'m building a Java Web Application using Java EE 6 and JSF-2.0, using the persistence APIfor all database operations.
I have a JUnit 4 test case with the Spring @Transactional annotation that saves an object, and then attempts to find it. The test case 开发者_运维技巧passes when I use this implementation:
I have a SQL query that I need to translate over into JPQL, and I\'m beginning to wonder if this is one of the cases where I\'ll just have to use native SQL.For reference, here is the SQL query.
If I have something like this @Entity public class Facility { ... @ManyToOne @JoinColumn(name=\"CUSTOMER_FK\")
Hibernate allows you to just say \".id\".Let\'s say I have: @Entity public class Customer { @Id private Integer customerId;
I have a list of IDs in a String, and want to 开发者_如何学JAVAuse Hibernate to get the rows with these IDs. TrackedItem is a Hibernate/JPA entity (sorry if I\'m getting the naming mixed up here).
I have four entities that are involved in a query that I\'m having a little trouble with.The relationship is as follows : Exchange----*Contract*----*Combo----*Trade and the (simplified) entities are a
I am using netbean 6.8 btw. Let say that I have 4 different tables: Company, Facility, Project, and Document. So the relationship is this. A company can have multiple facilities. A facility can have m
Is it possible to use casts in JPQL? In HQL it seems to be supported cast(... as ...), where the second
I\'m trying to do something which is easy as pie in PHP & Co: SELECT COUNT(x) as numItems, AVG(y) as average, ... FROM Z
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