Thanks a lot, uncommenting OpenSessionInViewFilter worked. What is its
drawback? Why is it commented by default?
One more observation. While the OGNL expression 'members.size()' worked in
both jetty:run and jetty:run-war, the call to the non-property method
'membersSize()' was successful only with jetty:run-war. Note, I made a
mistake in my previous answer: I named the non-property method
'getMembersSize()' which is wrong.
Another question: What's wrong with fmt:message when used with jetty:run? My
latest phrases are not replaced. There is no problem with jetty:run-war.
Strange.
Martin
mraible wrote:
>
> Have you tried uncommenting the OpenSessionInViewFilter in your web.xml?
>
> Matt
>
> On Mon, Apr 28, 2008 at 12:11 PM, Martin Homik <[EMAIL PROTECTED]> wrote:
>>
>> I actually tried to solve the problem by using OGNL.
>>
>> <s:iterator value="myGroups">
>> Group name: <s:property value="name"/>
>> Size: <s:property value='members.size()'/> members
>> </s:iterator>
>>
>> In my second attempt, I called a non-property method:
>>
>> In JSP:
>> ...
>> Size: <s:property value='membersSize()'/> members
>> ...
>> In POJO:
>> @Transient
>> public int getMembersSize() {
>> return members.size();
>> }
>>
>>
>> In both cases I ended up with a LazyInitializationException.
>>
>> [seepo] ERROR [btpool0-1] LazyInitializationException.<init>(19) |
>> failed to
>> lazily initialize a collection of role: org.seepo.model.Group.members,
>> no
>> session or session was closed
>> org.hibernate.LazyInitializationException: failed to lazily initialize a
>> collection of role: org.seepo.model.Group.members, no session or session
>> was
>> closed
>>
>>
>> Any idea? Your link to the page which describes JSTL functions says that
>> these functions are for String manipulations. I did not try it, but I
>> guess,
>> they won't work with collections, will they?
>>
>> Martin
>>
>>
>>
>>
>>
>> mraible wrote:
>> >
>> > You should be able to get members.size() if you use OGNL and a
>> > <s:property> tag. You can also use JSTL functions and the "length"
>> > function.
>> >
>> > http://java.sun.com/j2ee/1.4/docs/tutorial-update2/doc/JSTL8.html
>> >
>> > Matt
>> >
>> > On Mon, Apr 28, 2008 at 9:16 AM, Martin Homik <[EMAIL PROTECTED]> wrote:
>> >>
>> >> Problem:
>> >> * I have a "Group" POJO which keeps a list of its "members"
>> (ManyToMany
>> >> relation).
>> >> * The GroupAction class stores a list of my current groups and it
>> has a
>> >> group field for
>> >> accessing information of a single group. In principle, the
>> stucture
>> >> is
>> >> very similar to the
>> >> PersonAction of the online tutorial.
>> >>
>> >> Question: In the JSP, I iterate through the groups and print some
>> group
>> >> information. For each group, I'd like to print the number of
>> members.
>> >> How do
>> >> I get it? Can I access somehow members.size() in the JSP? Or am I
>> on a
>> >> completely wrong path?
>> >>
>> >> Note: I tried a few things by try-and-error and sometimes I ended up
>> >> with a
>> >> Hibernate LazyInitializationException. Now, I just don't know at
>> what
>> >> end to
>> >> continue? Is it something that
>> >> i) can be solved simply via JSP and some expression, or
>> >> ii) do I have to do something in the Action class, or
>> >> iii) does it go further down into the persistence layer?
>> >>
>> >> Hope, my mail is not too short and you understand my problem.
>> >> --
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>> >> Sent from the AppFuse - User mailing list archive at Nabble.com.
>> >>
>> >>
>> >>
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