Persist collection fields with hibernate
hibernate, java, jpa, persistence
Solution
Have a look at This. Maybe it is of help.
Did you apply @CollectionOfElements as follows?
@org.hibernate.annotations.CollectionOfElements(
targetElement = java.lang.String.class
)
Problem
Using hibernate, how can I persist a class with a `List<String>` field? Consider the following entity class: ``` @Entity public class Blog { private Long id; private List<String> list; @Id @GeneratedValue public Long getId() { return id; } public void setId(Long id) { this.id = id; } public List<String> getList() { return list; } public void setList(List<String> list) { this.list = list; } } ``` However, when I attempt to save it, I get the following error: ``` [INFO] An exception occured while executing the Java class. null Could not determine type for: java.util.List, at table: Blog, for columns: [org.hibernate.mapping.Column(list)] ``` I tried adding '`@CollectionOfElements`' to `getList()`, but then only the `id` is saved to the library. No corresponding column is created for the list. Note: I'm just trying Hibernate, so I could use documentation links that we will help me understand the collection relationship management in Hibernate