Using invoke tag in UIX

Question

I need an example of how to use the invoke tag in an event on a UIX page. I tried to modify the example in the ADF UIX tutorial, but the event doesn't fire the method.

Answer 1

Here's a quick demo
<?xml version="1.0" encoding="UTF-8" ?>
<page xmlns="http://xmlns.oracle.com/uix/controller"
expressionLanguage="el">
<content>
<stackLayout xmlns="http://xmlns.oracle.com/uix/ui">
<contents>
<styledText styleClass="OraInstructionText"
id="invTarg"
text="${uix.eventResult.catenatedString}"/>
<button text="invoke">
<primaryClientAction>
<fireAction event="inv"
formSubmitted="false"/>
</primaryClientAction>
</button>
</contents>
</stackLayout>
</content>
<handlers>
<event name="inv">
<invoke javaType="mydemos.InvokeTest"
method="catenateStrings"
result="${uix.eventResult.catenatedString}">
<parameters>
<parameter value="part1" javaType="string"/>
<parameter value="part2" javaType="string"/>
</parameters>
</invoke>
</event>
</handlers>
</page>
package mydemos;
public class InvokeTest
public static String catenateStrings(String a, String b)
return a + " and " + b;