hi Guys
Cann't i Retrieve a persistence objects by String identifier..??

I tried the following example...
My persistence object is

Class Book{
String ISBN;
String bookName;
//
//
//All my setter and getter method
//
//
}

and Book.hbm.xml is

<hibernate-mapping>
<class name="Book" table="Book">
<id name="ISBN">
<generator class="assigned"/>
</id>
<property name="bookName"/>
</class>
</hibernate-mapping>


Now while i try to retrieve the Book Object using the following line

Book myBook = (Book) session.get(Book.class, ISBN); I am getting the following error

hibernate.TypeMismatchException: Provided id of the wrong type. Expected: class java.lang.Integer, got class java.lang.String

Please Give me a solution...Cant i Retrieving a persistence objects by String identifier ??? or what can i do to retrieve my book object?


From
Utpal Dutta