Update OneToMany collection from jsf page
Hello,
I have a problem updating a OneToMany relationship from a jsf page.
I get an parent object via the local interface from the ejb, then I remove a child from the onetomany relationship and call my save method on the stateless bean which just merges the parent object back to the entitymanager.
But the child I've removed gets not deleted from the database (so its in the collection again after refresh).
So whats the preferred way to do this?
thanks
Dirk
Thanks for the reply.
I have (actually had) two problems. The first one I've solved since my initial post (stupid error on my part).
The other unsolved problem is JSF pages displaying stale data. User navigates to first page, navigates to second page, at this point the database changes, and then the user navigates back to first page. Navigating back to the first page shows the data how it was, not how it is, because it's from the session bean and not the database. If I could kill the session bean when the user navigates from the page the problem would be solved because I build the inital display in the constructor (BTW, please advise if this is a bad approach).
Frank, your reply raised a question. Is there a way to specify a refresh frequency? If so, how?
Thanks,
Al Malin
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Cheers.Not.
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Processing a request from JSF page?
Hello all,
I made a small page in JSF to display a form. I want to process the data in an EJB. When I press the submit button, a particular method is called. How should I pass the form data to EJB - I mean in what format,
should I pass various arguments to a method of bean? That doesn't sound like good practice. What if I have many fields in form?
should I pass the arguments as a List array of Strings?
or is there some better method?Hi Vikram,
To understand i am giving small exaple to you which helps u to get the formdata in the managed bean method.
Below is the sample code, we have a input text and the value is binded to Register that is a managed bean which u need to register in faces-config.xml file.
When you clicks the commandButton below the action will be submitted and the method process will invoke in the managed bean (Register). In this method you will get the inputText value which you entered.See the below code how to get the value.
<h:inputText id="text1" value="#{Register.text1}" styleClass="inputText" />
<h:commandButton id="bLogin" value="Login" action="#{Register.process}"/>
public class Register extends PageCodeBase{
private String text1=""; //created one string for the textBox id=text1 and provide setters & getters
public String getText1() {
return text1;
public void setText1(String text1) {
this.text1 = text1;
public String process(){
System.out.println("IN PROCESS METHOD");
//In the below line you will get the value entered in the text box.
System.out.println("Getting the value of input text box:::"+getText1());
Here you can perform what ever business login u need.
return "back";
Feel free to ask any questions.
Thank You,
Subrahmanyam Baratam. -
Problem opening popup from jsf page....
Hi to all....i have a problem, i'm trying to open a popup window using "outputLink".
My code is:
<h:outputLink value="#" onclick="window.open('#{appManager.basePath}/admin/selectCollection.jsf','','width=600, height=400, resizable=yes, fullscreen=no, menubar=no, toolbar=no, status=no, scrollbars=no, location=no')">
<h:outputText value="#{bundle.selCollection}"> </h:outputText>
</h:outputLink>
The "window.open" works perfectly, but the parent window shows the page "Directory Listing For /" with the list of directories of my root project...
What is the problem?try to use the popupFrame component of jenia4faces library (http://www.jenia.org).
Is a good solution for popups problem -
Update multiple records from a list
Just trying to find some tutorials on how to update multiple
records from 1
page of checkboxes
easiest example is hotmail
i would like to be able to give my clients the ability to
delete or update
multiple records from 1 page... mind you that this type of
update woudl only
be for simple status changes, flags that need to be changed
and so on...
Delete... well if they made it to this page they are already
sure and have
been warned that they are going to delete the records..
where can i find such a tutorial on how to complete multiple
record updates
or deletes from 1 form...
thanksServer model and software below.
And hotmail has nothing to do with anything.. its an example
of what i would
like to be able to do...
If you log into hotmail. you have the option to check all the
emails you
want to delete.
well thats what i want to do with my clients sites...
Each record would have its own checkbox, they select the
records they want
to delete or update and they hit submit to process there
request.
Using ASP, SQL2005 and DW8
"bregent" <[email protected]> wrote in
message
news:f21upb$nop$[email protected]..
> >Just trying to find some tutorials on how to update
multiple records from
> >1
>>page of checkboxes
>
> What server model?
>
>>easiest example is hotmail
>
> What does hotmail have to do with this.
Maybe you are looking for
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