[jboss-user] [Beginner's Corner] - Persisting java.util.Map with custom class as key and value

piotrekde do-not-reply at jboss.com
Sun Apr 17 13:20:19 EDT 2011

piotrekde [http://community.jboss.org/people/piotrekde] created the discussion

"Persisting java.util.Map with custom class as key and value"

To view the discussion, visit: http://community.jboss.org/message/600487#600487

Hi, I have the following situation:

@Table(name = 'myclass_table')
public class MyClass {
  private Map<CustomObjectOne, CustomObjectTwo> map;
public class CustomObjectOne {
 int a;
 int b;
public class CustomObjectTwo {
  double x;

Could you please give me an example how to persist MyClass along with Map inside (using annotations)?

I've found that I can use @ElementCollection annotation in order to do it, but as far as I know it's not available in Java1.5/EJB3.0 which I use.
Thanks in advance!

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