Simple custom class issue

Question

So this doesn't make sense. Here is my class....
package com.test.util;
public class locationGen {
String loc;
public String location(String department)
if (department == "D22")
loc = "New York";
if (department == "D33")
loc = "Chicago";
if (department == "D44")
loc = "Seattle";
return loc;
Here is my xpress
<set name='myclass'>
<new class='com.test.util.locationGen'/>
</set>
<set name='user.global.location'>
<invoke name='location'>
<ref>myclass</ref>
<ref>user.global.department</ref>
</invoke>
</set>
Yet location is null. I set department to D33 earlier in the workflow. Help!

Answer 1

So I think it was the way I was comparing strings. I even got fancy and explored different ways to do compares Here is what my final class looks like...
package com.test.util;
public class locationGen {
     String deptLocation;
     public String location(String department)
if (department.equalsIgnoreCase("D22"))
deptLocation = "New York";
if (department.equalsIgnoreCase("D33"))
deptLocation = "Chicago";
if (department.equalsIgnoreCase("D44"))
deptLocation = "Seattle";
return deptLocation;
Here is what it looks like calling it in xpress....
<set name='user.global.location'>
<invoke name='location'>
<new class='com.test.util.locationGen'/>
<ref>user.global.department</ref>
</invoke>
</set>
INFO:
<ref>user.global.department</ref>
INFO: --> D22
INFO:
</invoke> --> New York
Thanks all, this thread helped my understanding a lot.