Showing posts with label ajax velocity xml templates. Show all posts
Showing posts with label ajax velocity xml templates. Show all posts

Wednesday, October 10, 2007

Using Velocity Templates with AJAX


I am going to show a very simple example of how to use Ajax with your velocity templates .

I was using Turbine/Velocity framework for my project and was really wanted to use Ajax . So my first thought was why not create XML templates in Velocity . I found that its actually pretty easy to set that up .

First make sure that the framework treats the xml as a velocity template . For Turbine Velocity framework I changed the TR.props to the following

services.VelocityService.template.extension=vm,xml

Create the xml document that you can use in in AJAX .


<?xml version="1.0" encoding="UTF-8"?>
<devices>
#foreach($ditems in $devices)
<device id="$ditems.getDeviceid()" name="$!ditems.getName()">1</device>
#end
</devices>


then you can create a server side screen class for the xml .
make sure you setup the context type to xml

E,g from my Implementation

data.setContentType("text/xml");
context.put("devices",<Vector of devices>);

Compile and deploy it

Bingo ! You can test the xml from your browser by passing the necessary name/value pairs