[jboss-user] [JBoss Seam] - Using OneToMany with SEAM and JSF

[rgbg5]

Hello,

i am totally new to SEAM and JSF, so i hope you dont mind if this is a stupid question or posted to the wrong forum. I just couldnt find a example for this.

I have a Entity class called Contacts which looks like this

  | 
  | package gfm.entity;
  | 
  | import java.io.Serializable;
  | import java.util.ArrayList;
  | import java.util.Date;
  | import java.util.List;
  | import javax.persistence.Entity;
  | import javax.persistence.GeneratedValue;
  | import javax.persistence.Id;
  | import javax.persistence.JoinColumn;
  | import javax.persistence.Lob;
  | import javax.persistence.Temporal;
  | import javax.persistence.TemporalType;
  | import org.hibernate.annotations.CascadeType;
  | import org.jboss.seam.annotations.Name;
  | @Entity
  | @Name("contact")
  | public class Contact implements Serializable {
  |     private static final long serialVersionUID = 1L;
  |     
  |     @Id
  |     @org.hibernate.annotations.GenericGenerator(name="uuid_gen", strategy="uuid")
  |     @GeneratedValue(generator="uuid_gen")
  |     private String puid;
  |     
  |     private String title;
  |     private String firstName;
  |     private String middleName;
  |     private String lastName;
  |     
  |     private String company;
  |     private String department;
  |     
  |     @Temporal(TemporalType.DATE)
  |     private Date birthday;
  |     
  |     @Lob
  |     private String notes;
  |     
  |     @org.hibernate.annotations.CollectionOfElements
  |     @org.hibernate.annotations.IndexColumn(name="idx")
  |     @org.hibernate.annotations.Cascade(CascadeType.DELETE_ORPHAN)
  |     @JoinColumn(name="contact_puid")
  |     private List<StreetAddress> streetAddresses = new ArrayList<StreetAddress>();
  |     
  |     @org.hibernate.annotations.CollectionOfElements
  |     @org.hibernate.annotations.IndexColumn(name="idx")
  |     @org.hibernate.annotations.Cascade(CascadeType.DELETE_ORPHAN)
  |     @JoinColumn(name="contact_puid")
  |     private List<EmailAddress> emailAddresses = new ArrayList<EmailAddress>();
  | 
  |     @org.hibernate.annotations.CollectionOfElements
  |     @org.hibernate.annotations.IndexColumn(name="idx")
  |     @org.hibernate.annotations.Cascade(CascadeType.DELETE_ORPHAN)
  |     @JoinColumn(name="contact_puid")
  |     private List<CommNumber> commNumbers = new ArrayList<CommNumber>();
  |    
  |   // Getter and setter .....
  | 
  | }
  | 

Each contact could have an unlimited number of addresses, emailaddresses and phone and faxnumbers.

The question is, how do i reference a single streetaddress from within a JSF Page ? and how do i add new streetadresses to contact ? I hope i explained that right.

An example or code snippet would be great.

Thank you very much,

Stefan

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