[hibernate-users] Question about annotations

[Daniel Rindt]

hello,

i am new to hibernate, so please grant me some questions.
My hibernate session uses the MySQLDialect.

1. Empty fields in the Model are not NULL in db. My definition:
   @Size(max = 50)
   private String title;
   In the db is later an empty string, the @NotNull annotation also   
   is not working because its an emptry String ""

2. Unique fields are not working?
   @Email
   @Column(unique = true)
   @Size(min = 7, max = 50)
   private String email;
   The email field should be unique in database, but it is not. And in 
   the structure of the table also not defined as unique.

Someone can give me a clue please?

TIA
Daniel

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