How to call Java code from Xpand?

Question

I want to call an arbitrary Java method from an Xpand template (e.g. static method). How can i do this?

Answer 1

You need to create a mapping for the Java method in the template. This excellent article explains in detail the process http://pettergraff.blogspot.de/2009/11/how-to-write-extension-in-xtend-for.html

Example:

CalledJavaCode.java

package template; public class CalledJavaCode { public static String evaluate(Object o) { return "some evaluation"; } } 

Template.xpt

 //Xtend mapping for Java in template file String eval(Object this) : JAVA template.CalledJavaCode.evaluate(java.lang.Object); // Template.xpt usage of mapping «FOREACH attribute AS a» «eval(a)» «ENDFOREACH»