12:54 a.m.
|
| import static org.jboss.seam.ScopeType.SESSION;
|
| import java.io.Serializable;
| ...
| import org.jboss.seam.annotations.Scope;
|
| @Entity
| @Name("user")
| @Scope(SESSION)
| @Table(name="users",
| uniqueConstraints={@UniqueConstraint(columnNames={"username"})})
| public class User implements Serializable {
|
|
| private static final long serialVersionUID = 9093363133205674398L;
|
| private Long id;
| private String username = null;
| private String password = null;
| private Boolean seller = null;
| private SellerInfo sellerInfo = null;
| private ContactInfo contactInfo = null;
| private String firstName;
| private String lastName;
|
| public String getFirstName() {
| return firstName;
| }
| public void setFirstName(String firstName) {
| this.firstName = firstName;
| }
| public String getLastName() {
| return lastName;
| }
| public void setLastName(String lastName) {
| this.lastName = lastName;
| }
|
|
| public ContactInfo getContactInfo() {
| return contactInfo;
| }
| public void setContactInfo(ContactInfo contactInfo) {
| this.contactInfo = contactInfo;
| }
|
|
| public User() {
| super();
| }
|
|
| @NotNull @Length(min=5, max=15)
| public String getPassword() {
| return password;
| }
| public void setPassword(String password) {
| this.password = password;
| }
|
| @NotNull @Length(min=5, max=15)
| public String getUsername() {
| return username;
| }
| public void setUsername(String username) {
| this.username = username;
| }
| public SellerInfo getSellerInfo() {
| return sellerInfo;
| }
| public void setSellerInfo(SellerInfo sellerInfo) {
| this.sellerInfo = sellerInfo;
| }
|
| @Id @GeneratedValue(strategy=GenerationType.AUTO)
| public Long getId() {
| return id;
| }
| public void setId(Long id) {
| this.id = id;
| }
| public Boolean getSeller() {
| return seller;
| }
| public void setSeller(Boolean seller) {
| this.seller = seller;
| }
|
|
| }
|
My impression was that @Scope did the binding.
The remaining code is almost identical to initial example code, but for completness sake.
| <%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>
| <%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %>
| <%@ taglib uri="http://jboss.com/products/seam/taglib"
prefix="s" %>
| <html>
| <head>
| <title>Register New User</title>
| </head>
| <body>
| <f:view>
| <h:form>
| <table border="0">
| <s:validateAll>
| <tr>
| <td>Username</td>
| <td><h:inputText value="#{user.username}"
required="true"/></td>
| </tr>
| <tr>
| <td>First Name</td>
| <td><h:inputText value="#{user.firstName}"
required="true"/></td>
| </tr>
| <tr>
| <td>Last Name</td>
| <td><h:inputText value="#{user.lastName}"
required="true"/></td>
| </tr>
| <tr>
| <td>Password</td>
| <td><h:inputSecret value="#{user.password}"
required="true"/></td>
| </tr>
| </s:validateAll>
| </table>
| <h:messages/>
| <h:commandButton type="submit" value="Register"
action="#{register.register}"/>
| </h:form>
| </f:view>
| </body>
| </html>
|
Finally the RegisterAction, all I changed is the em.persist to em.merge
| import java.util.List;
|
| import javax.ejb.Stateless;
| ...
| import org.jboss.seam.log.Log;
|
| import com.genietown.model.User;
|
| @Stateless
| @Name("register")
| public class RegisterAction implements Register
| {
|
| @In @Valid
| private User user;
|
| @PersistenceContext
| private EntityManager em;
|
| @Logger
| private Log log;
|
| public String register()
| {
| List existing = em.createQuery("select username from User where
username=:username")
| .setParameter("username", user.getUsername())
| .getResultList();
| if (existing.size()==0)
| {
| em.merge(user);
| log.info("Registered new user #{user.username}");
| return "/registered.jsp";
| }
| else
| {
| FacesMessages.instance().add("User #{user.username} already
exists");
| return null;
| }
| }
|
| }
|
Thanks for your help. To restate the question, why wouldn't merge simply update the
user info instead of creating a new user? Obviously the later is what I want, but I am not
sure why this works the way it is setup currently.
-hc
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