Hello all,
I am trying to get a object from a <h:selectOneMenu> component and getting a
strange behavior.
My entities are:
Client >1:1> Address >n:1> City <n:1> State
In my user interface I have a selectMenu with the states registered on the
database and another selectMenu with the cities of the state selected. When the
user select the state I fill the cities box. This is working very good.
The problem is when I try to press the button of the form to save the client:
If the the city box don´t have a city selected, the action is called as
expected.
If the city box has a city selected, the form is reloaded without call the
action method of the button.
I don´t know what to do. I am trying to inject client.address.city, is that
possible?
I´m putting here all the code of a test project that I created to test it.
Thanks.
My Session Bean (insertClient)
| @Stateless
| @Name("insertClient")
| public class InsertClientAction implements InsertClient {
|
| @In Client client;
| @In StateDAO stateDAO;
| private ArrayList<State> states;
| private ArrayList<City> cities;
|
| public String viewClient() {
| stateDAO.createInitDB();
| return "/client.xhtml";
| }
|
| public void saveClient() {
| System.out.println("Client´s Name: " + client.getName());
| System.out.println("Client´s Street: " +
client.getAddress().getStreet());
| System.out.println("Client´s City: " +
client.getAddress().getCity().getName());
| System.out.println("Client´s State: " +
client.getAddress().getCity().getState().getName());
| }
|
| public ArrayList<State> getStates() {
| states = new ArrayList<State>(stateDAO.getAll());
| return states;
| }
|
| public ArrayList<City> getCities() {
| return cities;
| }
|
| public void updateCities(ValueChangeEvent event) {
| State state;
| try {
| state = (State) event.getNewValue();
| } catch (Exception e) {
| return;
| }
| if (state!=null) {
| System.out.println("State: " + state.getName());
| cities = new ArrayList<City>(state.getCities());
| }
| }
| }
|
Session Bean Interface
| @Local
| public interface InsertClient {
|
| public String viewClient();
| public void saveClient();
| public Collection <State> getStates();
| public Collection <City> getCities();
| public void updateCities(ValueChangeEvent event);
|
| }
|
My User Interface: (client.xhtml)
| <h:panelGrid columns="2">
| <h:outputText value="Name:"></h:outputText>
| <h:inputText value="#{client.name}"></h:inputText>
| <h:outputText value="Street:"></h:outputText>
| <h:inputText value="#{client.address.street}"></h:inputText>
|
| <h:outputText value="State:"></h:outputText>
|
| <h:selectOneMenu value="#{state}" id="state"
valueChangeListener="#{insertClient.updateCities}">
| <s:selectItems value="#{insertClient.states}"
var="state" label="#{state.name}" noSelectionLabel="Please Select..."/>
| <a:support event="onchange" reRender="city"
></a:support>
| <s:convertEntity />
| </h:selectOneMenu>
|
| <h:outputText value="City:"></h:outputText>
| <h:selectOneMenu value="#{client.address.city}" id="city">
| <s:selectItems value="#{insertClient.cities}"
var="city" label="#{city.name}" noSelectionLabel="Please Select..." />
| <s:convertEntity />
| </h:selectOneMenu>
|
| <h:commandButton action="#{insertClient.saveClient}" value="ok
h:"></h:commandButton>
| <s:button action="#{insertClient.saveClient}" value="ok s:"></s:button>
|
| </h:panelGrid>
|
Client Entity:
| @Entity
| @Name("client")
| @AutoCreate
| public class Client {
|
| private Long id;
| private String name;
| private Address address;
|
| @Id
| @GeneratedValue(strategy=GenerationType.AUTO)
| public Long getId() {
| return id;
| }
|
| public void setId(Long id) {
| this.id = id;
| }
|
| public Client() {
| address = new Address();
| }
|
| @Column(nullable=false, length=200)
| public String getName() {
| return name;
| }
|
| public void setName(String name) {
| this.name = name;
| }
|
| @OneToOne (cascade=CascadeType.ALL)
| public Address getAddress() {
| return address;
| }
|
| public void setAddress(Address address) {
| this.address = address;
| }
| }
|
Address Entity:
| @Entity
| @Name("address")
| public class Address {
|
| private Long id;
| private String street;
| private City city;
|
|
| @Id
| @GeneratedValue(strategy=GenerationType.AUTO)
| public Long getId() {
| return id;
| }
|
| public void setId(Long id) {
| this.id = id;
| }
|
| @Column(nullable=false, length=200)
| public String getStreet() {
| return street;
| }
|
| public void setStreet(String street) {
| this.street = street;
| }
|
| @ManyToOne
| @JoinColumn(name="city_id")
| public City getCity() {
| return city;
| }
|
| public void setCity(City city) {
| this.city = city;
| }
|
| }
|
City Entity:
| @Entity
| @Name("city")
| @AutoCreate
| public class City implements Serializable {
|
| private static final long serialVersionUID = -8910258028221144179L;
| private Long id;
| private String name;
| private State state;
|
|
| @Id
| @GeneratedValue(strategy=GenerationType.AUTO)
| public Long getId() {
| return id;
| }
|
| public void setId(Long id) {
| this.id = id;
| }
|
| public City() {
| state = new State();
| }
|
| @Column(nullable=false, length=40)
| public String getName() {
| return name;
| }
|
| public void setName(String name) {
| this.name = name;
| }
|
| @ManyToOne
| @JoinColumn(name="state_id")
| public State getState() {
| return state;
| }
|
| public void setState(State state) {
| this.state = state;
| }
|
| }
|
State Entity:
| @Entity
| @Name("state")
| @AutoCreate
| public class State implements Serializable {
|
| private static final long serialVersionUID = -8286496968276572340L;
| private long id;
| private String name;
| private Collection<City> cities;
|
| @Id
| @GeneratedValue(strategy=GenerationType.AUTO)
| public Long getId() {
| return id;
| }
|
| public void setId(Long id) {
| this.id = id;
| }
|
| @Column(nullable=false, length=40)
| public String getName() {
| return name;
| }
|
| public void setName(String name) {
| this.name = name;
| }
|
| @Override
| public boolean equals(Object obj) {
| if (obj instanceof State) {
| if (((State)obj).getId()==getId())
| return true;
| return false;
| }
| return super.equals(obj);
| }
|
| @Override
| public String toString() {
| return super.toString();
| }
|
| @OneToMany(cascade=CascadeType.ALL, fetch=FetchType.LAZY)
| @JoinColumn(name="state_id")
| public Collection<City> getCities() {
| return cities;
| }
|
| public void setCities(Collection<City> cities) {
| this.cities = cities;
| }
|
| }
|
The State DAO:
| @Name("stateDAO")
| @AutoCreate
| public class StateDAO extends EntityHome<State> {
|
| @Transactional
| public Collection<State> getAll() {
| return getEntityManager().createQuery("from State order by
id").getResultList();
| }
|
| @Transactional
| public void createInitDB() {
| EntityManager em = getEntityManager();
|
| State california = new State();
| california.setName("California");
| em.persist(california);
| State florida = new State();
| florida.setName("Florida");
| em.persist(florida);
|
| City city;
| city = new City();
| city.setName("Los Angeles");
| city.setState(california);
| em.persist(city);
|
| city = new City();
| city.setName("San Francisco");
| city.setState(california);
| em.persist(city);
|
| city = new City();
| city.setName("Miami");
| city.setState(florida);
| em.persist(city);
|
| city = new City();
| city.setName("Orlando");
| city.setState(florida);
| em.persist(city);
| }
| }
|
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