Ah... OK. Seems interesting. I will test it these days. I will tell you how it
works.
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Nope, that won't work. A converter probably isn't suitable here. This, to me,
sounds like a good use for returning the key directly to the backing bean.
I've added an example to the wiki on doing this.
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No problem.
But ... erm ... I've another question: In my application there is a table which
contains priorities. The table contains two columns: the ID and the description
of the priority. On some pages the user can filter all shown entries by
priority. Adding a noSelectionLabel the user has al
Thanks, I've added that to wiki page
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I've got an appointment so I quickly wrote down what I've done:
1. Download selectitems.jar and selectitems-ui.jar.
2. Place them in WEB-INF/lib of your war file.
3. Add following property to your persistence.xml:
4. Add following entry to your components.xml:
| java:/selectItem
*dancing on my desk*
It works ...
I'v full access on all the columns entity B and entity A have. And I can choose
an entity B from a dropdown to save in entity A.
It's just great.
Thank you Mr Muir.
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causes jboss to publish an EntityManagerFactory in JNDI for this
PersistenceContext. As I mentioned above EntityConverter requires access to
your EntityManager. You tell SelectItemsConfig the name under which the
EntityManagerFactory is published in JNDI, the EntityConverter can then do a
J
Ah. OK. I didn't set this value in persistence.xml.
What does this property do? I try to explain it for my own: In persistence.xml
I'm setting up how to connect the database. Whit the property you mentioned I
give it a JNDI name?!? And this JNDI name is the value that is needed by the
SelectItem
Btw. regarding your comment on a step-by-step guide, if you feel like writing
up how you got SeamSelectItems up and running, I'll quite happily edit it and
include it in the wiki page.
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So in persistence.xml you need to define
And use the value of this as the value of the persistenceUnitJndiName
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Ok, so the EntityConverter requires access to an EntityManager to load objects.
Just set this as you would set up an EntityManager for Seam -
| java:/selectItemsEntityManagerFactory
|
|
|
| java:/selectItemsEntityManagerFactory
|
Yeah, it works. Thanks!
Now I've got the real error message: Cannot access entityManager; ensure
persistenceUnitJndiName is set on SelectItemsConfig class in components.xml
So I've to set the JNDIName. But to which value? I didn't have a components.xml
before I used si:selectItems. I set it to
Ok, I've put up a new zip, same version no, with (I hope) a fix. I wasn't able
to replicate your problem (I'm using 1.1.0.CR1) so let me know.
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It's 1.0.1 GA on a AS 4.0.4 Patch1.
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What version of Seam?
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jboss-use
I'm trying to use and I followed all the hints in the example,
but I still get an exception:
java.lang.NullPointerException
| at org.jboss.seam.core.Messages$1.get(Messages.java:51)
| at org.jboss.seam.core.Messages$1.get(Messages.java:79)
| at
org.jboss.seam.selectitems.jsf.S
Hmm. OK. Yesterday I searched around the web for possibilities to handle a
ManyToOne-releationship in a dropdown-box. And I think that your
http://wiki.jboss.org/wiki/Wiki.jsp?page=SeamSelectItemsNewDesign offers all
the things I need with a great usability.
But I think there should be a guidel
Well there are really two approaches:
1) Traditional JSF - write a converter and outject a List - this is described
on the wiki http://wiki.jboss.org/wiki/Wiki.jsp?page=SelectItems
2) Use the SeamSelectItems package - an old version of which is being discussed
here
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ht
I#ve got the same problem. The real differences between your and my version is
the usage of the EntityConverter and the @SelectItems.
Could you please tell me what you did to get it working?
Do I have to use @SelectItems and/or the EntityConverter or does it also work
with a "pure" Seam?
View
Wow, I get to answer my own question for a change:
The validation error was resolved when I read the example by Mr. Muir. I had to
override the equals method:
| @Override
| public boolean equals(Object obj) {
| if (!(obj != null && obj instanceof Room))
|
Thank you for the extra eyes. I'm beginning to wish I had NOT started w/ the
hibernate generated code for this particular app. Configuration seems to be a
big part of this.
I got past the entitymanager issue, now I'm stuck with the exact same code
giving me a Validation error on the jsp. My que
"petemuir" wrote : Check you've configured
org.jboss.seam.selectitems.SelectItemsPersistenceConfig ->
persistenceUnitJndiName in components.xml - it should be set the same as
org.jboss.seam.core.ManagedPersistenceContext -> persistenceUnitJndiName
| java:/seamappEntityManager
I should also say, that the rooms and organization lookups work fine using the
EntityManager from inside RoomServiceBean. But it appears that the the jsf is
trying to access the EntityManager from somewhere other than than
RoomServiceBean, because I get no System.out messages once I click on the
my components.xml
|
|
|
| true
| seamapp/#{ejbName}/local
|
|
| java:/seamappEntityManagerFactory
|
|
| java:/selectItemsEntityManagerFactory
|
|
|
|
|
View the original post :
http:/
"johnurban" wrote : So, some magic is happening between jsf submit and
RoomServiceBean.
Yes it is :) Check you've configured
org.jboss.seam.selectitems.SelectItemsPersistenceConfig ->
persistenceUnitJndiName in components.xml - it should be set the same as
org.jboss.seam.core.ManagedPersisten
I was able to get the example working after closely following your example Mr.
Muir. Thank you.
In your example you have Client and ClientType POJO's. My next hurdle is
getting the Client object to persist from a JSF. Is there an example already
out there showing how to persist an object that h
anonymous wrote : In Seam what are the best guidelines for determining
when/when not to use SLSB/SFSB?
This is an interesting question. I think the answer depends on style/what you
are doing.
I'm increasingly using the pattern of a stateful component to manage the flow
and a stateless 'servic
Thanks.
Looks like my decision to add to the already generated code was a bad idea. I
like your idea of simplifying. So that brings me to a design question:
In this case should I create a new SLSB to persist the new person record rather
than the generated PersonEditorBen(SFSB)?
If I do create
I'm still concerned about personEditor having a SESSION scope [1]. I would
suggest trying a really simple stateless session bean that just returns all the
rooms in your data:
...
| @SelectItems(label="description")
| List allRooms;
|
| @Factory("allRooms")
| void getRoomList() {
|
Thanks petemuir. I think you've got me on the right track now. Getting that old
null exception again. I've debuged the code and I have exactly 3 rooms in my
lists. The count says 3.
| 08:03:31,281 ERROR [[jsp]] Servlet.service() for servlet jsp threw exception
| java.lang.IllegalArgumentExc
Have you tried the example in my selectitems code
(http://jroller.com/page/pmuir?entry=selectitems_revisited). It contains both
a select many and select one drop down that will end up being represented as
youy suggest.
If you have problems getting the example running (follow the readme) let me
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