[jboss-user] [JBoss Seam] - Re: @NotNull annotation not working...

[waheed.murad]

well i have understood the problem but cannot find solution for it.. well i have 

h:outputText in my JSF page as

<h:inputText id="username" value="#{customer.username}">

which is mapped to the Entity bean

Entity
@Name("customer")
@Scope(SESSION)
@Table(name="ERegCustomer")
@SequenceGenerator(name="CUSTOMER_SEQUENCE", sequenceName="EREGCUSTOMER_SEQ")
public class  ERegCustomer implements Serializable
{
	
   private static final long serialVersionUID = 1881413500711441953L;
	
   private Integer id;
   private String username;
   private String password;
....
....
....

And my session bean as
public class ERegCustomerAction implements ERegCustomerLocal  {

    	@In
	private Context sessionContext; 
	
	@In(required=false) 
	@Out(required=false)
	private ERegCustomer customer;

        public String registerCustomer()
	{
         .......
         .........
         .........      /// here customer.getUsername returns empty String not null

when i submit the form with empty field, ........ customer.username have value. i mean it is assigined to empty string ("") not to null so abviously @NotNull anotation will not work. if this is the case then for what @NotNull is used for and if i am right then what mistake i made

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