Cannot persist detached object

From: <glassfish_at_javadesktop.org>
Date: Mon, 26 Feb 2007 13:15:18 PST

I have the following tables: 
 
Day_Styles 
  id 
  name 

 
Day_Style_Assignments 
  id 
  day_style_id 
  event_id 
 
Events 
  name 

  location (can be null) 
  booking_type_id (can be null) 
  age_restricton (can be null) 
 
 
My models look like this: 
 
public class DayStyles implements Serializable { 
 

    @Id 
    @Column(name = "id", nullable = false) 
    private Integer id; 
 
    @Column(name = "name", nullable = false) 

    private String name; 
 
    @ManyToOne(fetch = FetchType.EAGER,cascade = CascadeType.ALL ) 
    @JoinColumn(name="id",referencedColumnName="itinerary_day_style_id", nullable = 

false, insertable=false, updatable=false) 
    private ItineraryDayStyleAssignments itineraryDayStyleAssignment; 
 
    @OneToMany(mappedBy = "dayStyle",fetch = FetchType.EAGER, cascade = CascadeType.ALL ) 
    private Collection<DayStyleAssignments> dayStyleAssignments; 

    ....................... 
 
 
public class DayStyleAssignments implements Serializable { 
 
    @Id 
    @Column(name = "id", nullable = false) 

    private Integer id; 
 
    @Column(name = "day_style_id", nullable = false) 
    private int dayStyleId; 
 
    @Column(name = "event_id",nullable = false, insertable=false, updatable=false) 

    private int eventId; 
 
    @ManyToOne(fetch = FetchType.EAGER,cascade = CascadeType.ALL ) 
    @JoinColumn(name="day_style_id",referencedColumnName="id", nullable = false, 

insertable=false, updatable=false) 
    private DayStyles dayStyle; 
 
    @ManyToOne(fetch = FetchType.EAGER,cascade = CascadeType.ALL ) 
    @JoinColumn(name="event_id",referencedColumnName="id") 

    private Events event; 
 
    @OneToMany(mappedBy = "dayStyleAssignment",fetch = FetchType.EAGER, cascade = 
CascadeType.ALL ) 
    private Collection<Events> events; 

    ........................... 
 
public class Events implements Serializable { 
 
    @Id 
    @Column(name = "id", nullable = false) 

    private Integer id; 
 
    @Column(name = "name", nullable = false) 
    private String name; 
 
    @OneToMany(mappedBy = "event",fetch = FetchType.EAGER, cascade = CascadeType.ALL ) 

    private Collection<EventDays> eventDays; 
 
    @OneToMany(mappedBy = "event",fetch = FetchType.EAGER, cascade = CascadeType.ALL ) 
    private Collection<EventDates> eventDates; 

 
    @OneToMany(mappedBy = "event",fetch = FetchType.EAGER, cascade = CascadeType.ALL ) 
    private Collection<DayStyleAssignments> dayStyleAssignments; 
 
    @ManyToOne(fetch = FetchType.EAGER,cascade = CascadeType.ALL ) 

    @JoinColumn(name="id",referencedColumnName="event_id", nullable = false, 
insertable=false, updatable=false) 
    private DayStyleAssignments dayStyleAssignment; 
    .............................. 

 
 
My JSF page to create a new DayStyleAssignment looks like this : 
 
        <f:view> 
            <h:messages errorStyle="color: red" infoStyle="color: green" layout="table"/> 

            <h1>Add Day Style Event</h1> 
            <h:form> 

                <h:panelGrid columns="2"> 
                    <h:outputText value="Event:" 

rendered="#{dayStyleAssignments.dayStyleAssignments.event == null}"/> 
                    <h:selectOneMenu id="event" 

value="#{dayStyleAssignments.dayStyleAssignments.event}" title="Event" 
rendered="#{dayStyleAssignments.dayStyleAssignments.event == null}"> 
                        <f:selectItems value="#{dayStyleAssignments.events}"/> 

                    </h:selectOneMenu> 
                </h:panelGrid> 

                <h:commandLink action="#{dayStyleAssignments.create}" value="Create" 
rendered="#{dayStyleAssignments.dayStyleAssignments.event == null}"/> 

            </h:form> 
        </f:view> 
 
 
dayStyleAssignments is a session bean that maps to a DayStyleAssignmentController.  The 

DayStyleAssignmentsController has an instance of the entity model DayStyleAssignments. 
 
 
Whenever my dayStyleAssignments.create function is called, I receive the following error. 
  Exception Description: Cannot persist detached object [Aerobics]. Class> 
net.nanonation.rccl.model.Events Primary Key> [4] 
 
 
Can anyone provide any insight?  Thanks in advance. 

 
Jim
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