CODEWITHSUNDEEP
jsfprimefacesjsf-2
feargal
feargal

Reputation: 2735

Update ui components from server event

How would I go about updating a UI component when a server process finishes or anytime else for that matter?

Can\Should I

If anyone could guide me in the right direction I'd appreciate it.

Example Case One

Server process ends and updates the database.
I want to automatically update a DataTable with new rows based on the new information.
I don't want to poll for the new data.

EDIT

I want to update the UI component (a primefaces datatable) from an EJB Stateless Bean

Upvotes: 0

Views: 3963

Answers (2)

HRgiger
HRgiger

Reputation: 2790

You didnt mention which version of primefaces you are using but you can update components from backed bean with addpartialupdatetarget.

RequestContext context = RequestContext.getCurrentInstance();
context.addPartialUpdateTarget("myForm:myComponent");

Upvotes: 1

Catfish
Catfish

Reputation: 19294

You can just use the update attribute of your commandButton or whatever else you're using.

Something like this should work

<p:dataTable value="#{backer.bean}" id="table">
  // columns with data
</p:dataTable>

<p:commandButton actionListener="#{backer.updateDB}" update="table" />

Upvotes: 0

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