Could not write content: failed to lazily initialize a collection of role

Question

I have One-To-Many relationship, here is my code

@Entity
@Table(name = \"catalog\")
public class Catalog {

    @Id
    @GeneratedValue(strategy = GenerationType         


        

Answer 1

Using FetchType.LAZY , if still getting the error "Could not write content: failed to lazily initialize a collection of role" , that may be probably caused by somewhere in the logic (perhaps in a controller) , Catalog is being tried to be deserialized that contains list of catalog items which is a proxy but the transaction has already ended to get that. So create a new model ('CatalogResource' similar to catalog but without the list of items). Then create a catalogResource object out of the Catalog (which is returned from the query)

public class CatalogResource {
    private int catalog_id;
    private String name;
    private List orders;
}