Hibernate criteria query for Collection Table?

Question

I have following Entity

@Entity
@Table(name = \"rule\")
public class Rule implements Serializable {

    @Id
    @GeneratedValue(strategy = GenerationType.AU         


        

Answer 1

The criteria query looks fine. Suppose we have tables:

rule(id, name,...)
action(id, name,..)
rule_action(id, rule_id, action_id,...) -- (or rule_id+action_id as  a composite pkey)

The mapping should be as follows:

public class Rule {
   ...
   @ManyToMany(mappedBy = "rule")
   private Set actions;
   ...
}

public class Action {
   ...
   @JoinTable(
      name="rule_action",
      joinColumns={@JoinColumn(name="action_id")},
      inverseJoinColumns={@JoinColumn(name="rule_id")}
   )
   private Set rules;
   ...
}

This way your criteria query should work.