Difference Between One-to-Many, Many-to-One and Many-to-Many?

Question

Ok so this is probably a trivial question but I\'m having trouble visualizing and understanding the differences and when to use each. I\'m also a little unclear as to how co

Answer 1

this would probably call for a many-to-many relation ship as follows

public class Person{

    private Long personId;
    @manytomany

    private Set skills;
    //Getters and setters
}

public class Skill{
    private Long skillId;
    private String skillName;
    @manyToMany(MappedBy="skills,targetClass="Person")
    private Set persons; // (people would not be a good convenion)
    //Getters and setters
}

you may need to define a joinTable + JoinColumn but it will possible work also without...