This is what I have annotated in BookFile set.
@OneToMany(cascade = {CascadeType.PERSIST, CascadeType.MERGE})
@JoinTable(name = "book_file", joinColumns = {...@joincolumn(name="book_id")},
inverseJoinColumns = {...@joincolumn(name =
"bookFile_id")})
@LazyCollection(value = LazyCollectionOption.FALSE)
public Set<BookFile> getBookFiles() {
return bookFiles;
}
Gero
ramzi khlil wrote:
>
> You may need to specify cascade attribute.
>
> Ramzi
>
>
>
> On Thu, Nov 5, 2009 at 12:50 PM, gerogut
> <gutierrez.geron...@gmail.com>wrote:
>
>>
>> Hi, I'm a begginer in this matter so I'm sorry if my questions are
>> stupid.
>>
>> I'm building a webapp to manage the books i have in my office.
>> I have a book class which has the info I need and it has a Set<BookFile>
>> which will store file associated to that info. That is, the actual pdf of
>> the book, examples, etc.
>>
>> 1 - I declared the set with @OnToMany with a @JoinTable and
>> @LazyCollection
>> is that ok? It creates de DB ok and populates it with my sample data.
>> 2- Then I have a booksearch.jsp which allowws me to search through the
>> books
>> and then shows me the list of books in books.jsp
>> 3- If I click on a book it sends me to bookform.jsp which shows me book
>> info
>> in a form an I can update the info.
>> 4- When I click on the "files" button it takes me to the bookfiles.jsp
>> which
>> is the list of files associated to that book, and then comes my PROBLEM,
>> which I dont know how to resolve and maybe t comes from before.
>> 5- when I add a book it adds it to the DB but it does not add the value
>> to
>> the joinTable so the file is not associated to the book. And i can't
>> acces
>> the value of the Book from bookFileFormController...
>>
>> Any suggestions, corrections, comments? THANK YOU.
>> --
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>>
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