In my application I defined following classes: @Entity @Table(name = \"forums\") public class Forum { @Id
I have been trying to delete the inverse relationship on a JPA entity, however this have not been working well. What I\'m trying right now is to set the ManyToOne property to null and then saving it u
I have 3 tables like this in MySQL 5: PERSON| |id|fullName| isEmp|isParent| EMPLOYEE| |personId|code| PARENT|
My develop environment is： netbeas7.01 + mysql5 + spring3 + struts2 + jpa2（hibernate3.6； When I Refactoring a old project，I got some trouble：there is a random“null point”error when I run the p
I\'d like to create query like this with QueryDSL update WorkMessage w set w.totalPrice = 0.12 - w.totalCost;
I want to use mixed @Inheritance strategy, but Hibernate doesn\'t support it. Is there any way to implement JOINED inheritance without actual class inheritance.
Consider the below example: I have 3 tables: Fruit, Orange and Apple id is generated in fruit table and is the primary key here
@Entity public EntityA implements Serializable { ... @OneToOne(fetch=FetchType.LAZY) private Entity开发者_高级运维B b;
This is an academic question; I have no broken code in relation to this.I just want to expand my understanding of what is happening under the hood.
I used EJB3/JPA when persisting my entities and I am happy on how it is able to manage my DB related task.
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