Vaadin REFRESH

[mehmet tasar, modifié il y a 11 années.]

Hi All,
I started to switch from alloy to vaadin.

But i have got a trouble with Vaadin Form. I will tell an easy way.
I have two portlet. In first portlet, I populate a select component from database. it is working properly.
In second portlet, I get new data from user for first portlet's select component. But cannot repopulate the first portlet in current user session.

How can I refresh the first portlet's window?

[David H Nebinger, modifié il y a 11 années.]

Use the Liferay IPC plugin to send messages between your portlets.

You could send the data collected in portlet 2 to the listener on portlet 1, or you could send a simple message indicating that portlet 1 should refresh itself...

Alternatively you could use the Refresher plugin in portlet 1. It will invoke a method on portlet 1 to allow you to refresh automatically on a timed basis.

[mehmet tasar, modifié il y a 11 années.]

David H Nebinger:

Use the Liferay IPC plugin to send messages between your portlets.

You could send the data collected in portlet 2 to the listener on portlet 1, or you could send a simple message indicating that portlet 1 should refresh itself...

Alternatively you could use the Refresher plugin in portlet 1. It will invoke a method on portlet 1 to allow you to refresh automatically on a timed basis.

Thanks David,
I used the Liferay IPC. It is working if portlets are on the same page.
When i put separate pages, first portlet is not refreshing.

[Jack Bakker, modifié il y a 11 années.]

I think instead of 'Liferay IPC plugin' that David meant to write 'Vaadin IPC' plugin ? (https://vaadin.com/directory#addon/vaadin-ipc-for-liferay)

Vaadin IPC plugin uses Javascript so, yeah same page only

In contrast, and more generically Liferay IPC can do send/receive between portlets when placed on different pages ; Rick Sezov's "Liferay in Action" gives some detail on this I think

[mehmet tasar, modifié il y a 11 années.]

can you show me any example for Liferay IPC. is it working with vaadin?

Also I am searching a method like onload instead of init method.
so, if a user refresh the page, the window should be refresh too. because it is possible that another user can change this portlet's data.
Is there any a simple way for this issue?

[Jack Bakker, modifié il y a 11 années.]

mehmet tasar:

can you show me any example for Liferay IPC

I like Rich Sezov's Liferay in Action book example for Liferay IPC (inter-portlet communication). I think there is at least one wiki on this too somewhere here at www.liferay.com.

mehmet tasar:

is it working with vaadin?

I've used Vaadin IPC Plugin and I've used Liferay IPC with MVCPortlet but haven't tried Liferay IPC with Vaadin.

mehmet tasar:

Also I am searching a method like onload instead of init method.
so, if a user refresh the page, the window should be refresh too. because it is possible that another user can change this portlet's data.
Is there any a simple way for this issue?

I can't tell if you are asking about refreshing only the Vaadin portlet or the entire browser window. There are ways for each.

[David H Nebinger, modifié il y a 11 années.]

mehmet tasar:

can you show me any example for Liferay IPC. is it working with vaadin?

Yes portlet events work with Vaadin. Here's a link for a basic implementation: http://demo.vaadin.com/6.2.0.pre1/docs/example-source/com/vaadin/demo/portlet/

Even though it says 6.2.0.pre1, the concepts are basically the same for all of Vaadin 6. May change under Vaadin 7, but since it's not out yet who knows?

[mehmet tasar, modifié il y a 11 années.]

Thank you David,
As i mention above, is there any other simple method to refresh the page?
Because A lot of function can impact the current page's data, so it does not make sense to use IPC for every transaction.

[David H Nebinger, modifié il y a 11 années.]

For that I'd use the refresher plugin.

It calls a method in your registered listener to refresh content.

[David H Nebinger, modifié il y a 11 années.]

Jack Bakker:

I think instead of 'Liferay IPC plugin' that David meant to write 'Vaadin IPC' plugin ? (https://vaadin.com/directory#addon/vaadin-ipc-for-liferay)

Yeah, that's the right plugin but the Vaadin class that you end up using is LiferayIPC