I have a couple Entities that have @OneToMany relationships with each other. I define them as so.. | @Entity | public class District implements Serializable { | | private Long id; | private String name; | private Region region; | private Manager manager; | @DataModel | private List<Store> stores; | | @Id @GeneratedValue | public Long getId() { | return id; | } | | public void setId(Long id) { | this.id = id; | } | | @Length(max=150) | public String getName() { | return name; | } | | public void setName(String name) { | this.name = name; | } | | @ManyToOne @JoinColumn(name="region_id", nullable=false) | public Region getRegion() { | return region; | } | | public void setRegion(Region region) { | this.region = region; | } | | @OneToOne @JoinColumn(name="manager_id", nullable=false) | public Manager getManager() { | return manager; | } | | public void setManager(Manager manager) { | this.manager = manager; | } | | @OneToMany(cascade=ALL, mappedBy="id", fetch=EAGER) | public List<Store> getStores() { | return stores; | } | | public void setStores(List<Store> stores) { | this.stores = stores; | } | | } | | @Entity | public class Store implements Serializable { | | private Long id; | private String name; | private String street; | private String city; | private String state; | private String postalCode; | private District district; | | @Id @GeneratedValue | public Long getId() { | return id; | } | | public void setId(Long id) { | this.id = id; | } | | @Length(max=20) | public String getName() { | return name; | } | | public void setName(String name) { | this.name = name; | } | | public String getCity() { | return city; | } | | public void setCity(String city) { | this.city = city; | } | | @Column(name="postal_code") | public String getPostalCode() { | return postalCode; | } | | public void setPostalCode(String postalCode) { | this.postalCode = postalCode; | } | | public String getState() { | return state; | } | | public void setState(String state) { | this.state = state; | } | | public String getStreet() { | return street; | } | | public void setStreet(String street) { | this.street = street; | } | | @ManyToOne(optional=false, fetch=EAGER) | @JoinColumn(name="district_id", nullable=false) | public District getDistrict() { | return district; | } | | public void setDistrict(District district) { | this.district = district; | } | } | The relationship definition seems to work fine because when I create a Store it maintains the proper District relationship in the database. | mysql> select * from District; | +----+-----------+-----------+------------+ | | id | name | region_id | manager_id | | +----+-----------+-----------+------------+ | | 1 | district1 | 1 | 1 | | +----+-----------+-----------+------------+ | | mysql> select * from Store; | +----+--------+---------------+------+-------+-------------+-------------+ | | id | name | street | city | state | postal_code | district_id | | +----+--------+---------------+------+-------+-------------+-------------+ | | 1 | store1 | 123 my street | city | st | 12345 | 1 | | | 2 | store2 | 456 my street | city | st | 12345 | 1 | | +----+--------+---------------+------+-------+-------------+-------------+ | However, when I try to load this District I am getting very odd behavior. With the @GeneratedValue annotations (as above) the following DataTable only shows Store "store1". | <h:dataTable var="store" | value="#{districtHome.instance.stores}" | rendered="#{ not empty districtHome.instance.stores }" | id="stores"> | <h:column> | <f:facet name="header">Name</f:facet> | <h:outputText value="#{store.name}"/> | </h:column> | </h:dataTable> | In reality I do not want @GeneratedValue's for the Id field. But when I remove the @GeneratedValue annotation and input the Id's via the form I get no results in the <h:dataTable /> at all. Nothing I have tried seems to be getting me anywhere. I've tried using that dataTable and not. I've tried using Set's and List's. I've tried it with the following in the DistrictHome.java: | public List<Store> getStores() { | return getInstance() == null || | getInstance().getStores() == null ? null : | new ArrayList<Store>(getInstance().getStores()); | } | And... | <h:dataTable var="store" | value="#{districtHome.stores}" | rendered="#{ not empty districtHome.stores }" | id="stores"> | <h:column> | <f:facet name="header">Name</f:facet> | <h:outputText value="#{store.name}"/> | </h:column> | </h:dataTable> | | All of which either give me no items in the stores Collection, or only one (when I expect two). I've gone through the examples (which is where I got the DistrictHome idea) and can not seem to find any differences (that solve the problem) between my code and the example code. I am at a complete loss at this point. Where or how can I debug this to find out what the problem is and fix it? Any thoughts at all on what might be causing the problem? Thanks. 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