How to control the call to a data control using portlet parameter

hi,
i'm using a web service data control on my portlet application. I'd like to know if there's a way where in the data control will not be called when the portlet is loaded,unless the portlet parameter is specified.
thanks in advance!
Rian

thanks Yannick!
Here's what I did
1. Create a web service proxy
2. Create a java class that will manually call the web service (instantiate the service and port first?)
- Can I retrieve the portlet parameter in this class?
3. Create Data Control out of the POJO class
- Does this mean I have to code setters/getters inside Java class (for the input and output of web service) in order for me to put the fields onto my portlet?
Given your sample, am i understanding it correctly that once it's converted to a data control, you'll drag the getUserList method onto the page as parameter form?
** EDIT***
it's now working. I have a POJO that will call the service proxy and then I have a Bean that will call the POJO method. I created a Data Control out of the POJO class as well,so I can place elements in my page using drag and drop of POJO's methods/variable.
thanks a lot for your help
Rian
Edited by: rian on Dec 28, 2010 11:24 AM

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