I lost a lot of time trying to find out the reason for the problem I described
here:
http://www.jboss.com/index.html?module=bb&op=viewtopic&t=110611
(Problem of UnsupportedOperationException when using @ManyToMany and
<s:convertEntity/>)
I tried a lot of things (debug, simplify my code, with EJB, with POJO) but I
did not found the reason.
Well I do the following in order to show you the problem, and maybe you can
tell me what is happening:
a) I have got Seam 1.3.0.ALPHA
b) I check UI example has the right enviroment I want to test (@ManyToMany
between Person and Colour).
c) I deployed it to Jboss 4.2.0.GA and all work fine. Note that s:selectItems
sample uses Seam Framework.
d) I made a POJO action component in the UI example, it looks like:
| @Name("personAction")
| @Scope(ScopeType.CONVERSATION)
| public class PersonAction {
|
| @In(create=true)
| private EntityManager entityManager;
|
| private Person person;
|
| private Integer id;
|
|
| @Transactional
| public String update() {
| entityManager.joinTransaction();
| entityManager.merge(person);
| entityManager.flush();
| return "Success";
| }
|
| public Person getInstance() {
| if (person != null) {
| return person;
| } else {
| entityManager.joinTransaction();
| person = entityManager.find(Person.class, id);
| return person;
| }
| }
|
| public Integer getId() {
| return id;
| }
|
| public void setId(Integer id) {
| this.id = id;
| }
|
| }
|
e) I created a selectItemsAction.xhtml based on selectItems.xhtml, it looks
like:
| <h:form>
|
| <s:decorate template="decorateField.xhtml">
| <ui:define name="label">Favourite Colours</ui:define>
| <ui:define name="description">A colour is an
entity</ui:define>
| <h:selectManyListbox
value="#{personAction.instance.favouriteColours}" >
| <s:selectItems value="#{colours.resultList}"
var="colour" label="#{colour.name}" />
| <s:convertEntity />
| </h:selectManyListbox>
| </s:decorate>
|
| <h:commandButton value="Apply" action="#{personAction.update}">
| <s:conversationPropagation type="join" />
| </h:commandButton>
|
| <h:messages globalOnly="true" />
| <p><s:link view="/index.xhtml" propagation="end">Back to
index</s:link></p>
| </h:form>
|
|
f) Minor changes:
pages.xml
| <page view-id="/selectItemsAction.xhtml">
| <begin-conversation join="true"/>
| <param name="personId" converterId="javax.faces.Integer"
value="#{personAction.id}" />
| </page>
|
template.xhtml (link to start the update process, exactly like selectItems):
| <li><s:link view="/selectItemsAction.xhtml" propagation="join">
| <code>s:selectItems POJO Action</code>
| <f:param name="personId" value="1" />
| </s:link></li>
|
g) I just deploy again and trying selectItemsAction.xhtml it does not work, it
gives UnsupportedOperationException (stacktrace is in the post I put at the
beginning of this post) .
Now, my question is why POJO action which I added to UI example does not work?
What am I doing wrong?
As I tell you before, this also does not work using EJB(my case), and this only
happens with Seam 1.3.0.ALPHA, because it works fine in Seam 1.2.1. And as I
tell above, it works with Seam Framework.
Please help me, at this time I don't know how to solve this.
Thanks in advance.
View the original post :
http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4054937#4054937
Reply to the post :
http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4054937
_______________________________________________
jboss-user mailing list
jboss-user@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/jboss-user
