Fetchtype « Load « JPA Q&A

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1. How to load a set of objects when Hibernate Lazy Fetchtype is used?    stackoverflow.com

I have a Hibernate domain class (let's say PetOwner) with a one to many relationship with another class(Pets) [PetOwner (1)---------(*) Pet] Due to a drastic change required to improve the performance I had ...

2. Hibernate disconnect proxy when fetch=FetchType.LAZY    stackoverflow.com

@Entity
public class Master implements Serializable{
private List slaves;
@OneToMany(mappedBy = "Master",fetch=FetchType.LAZY)
public List getSlaves() {
   return slaves;
}
}

I want this code to pass.

List m = createQuery("from Master where id=1").getResultList();
for (Master master : m) ...

3. Merging an object with FetchType.EAGER relation leads to "FailedObject"    stackoverflow.com

I have an entity VM with a relationship to another entity BP. The relationship is eagerly fetched. First I load a VM. After loading the VM is detached, serialized and changed ...

4. JPA/Hibernate: @ManyToOne and @OneToOne relationships tagged as FetchType.LAZY and optional = false not loading lazily on em.find()?    stackoverflow.com

I have the following entity (only relevant mappings shown): 

@Entity
@Table(name = "PQs")
public class PQ implements Serializable
{
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column
   ...

5. @OneToOne (fetch = FetchType.LAZY) not lazy load    forum.hibernate.org

Hello. I'm using jpa + hibernate (3.3.2.GA). I mapped relations as follows: ------------------------------- Code: public class A { ... @OneToOne( optional = true, cascade = {CascadeType.PERSIST, CascadeType.REFRESH }, fetch = FetchType.LAZY, ...