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Invoking static methods on inner classes via value stack

Andy Wilson
Ranch Hand

Joined: Jun 26, 2009
Posts: 32
Struts 2 doesn't seem to allow methods on inner classes to be called via the value stack.
Say I have the following class structure:

package com.spam;

public class Outerclass {

public String outerMethod() {
return "outer";
}

public class InnerClass {
public String innerMethod() {
return "inner";
}
}
}


The if I have a jsp containing the following two tags:

<s:text name="@com.spam.Outerclass@outerMethod()" />
<s:text name="@com.spam.Outerclass.InnerClass@innerMethod()" />

The first tag will call the outerMethod and render the result "outer".
However, the second tag doesn't call the innerMethod and instead renders the
string "@com.spam.Outerclass.InnerClass@innerMethod()".

Does anyone know if it should be possible to do this and if so how?

BTW: I'm using struts 2.1.8.

Cheers,
AW
David Newton
Author
Rancher

Joined: Sep 29, 2008
Posts: 12617

Please UseCodeTags when posting code or configuration. Unformatted code and configuration is very difficult to read. You can edit your post to include them by using the button.

Personally, I didn't even know that syntax would work on non-static methods--I'm a little surprised. Aside from that, I'm not sure. You might have better luck asking on the Struts user mailing list; I'm not overly-familiar with how OGNL's static method syntax works under the covers.
Robert Nelson
Greenhorn

Joined: Jan 04, 2012
Posts: 1
I'm sure this is too old for you to care anymore, Andy, but I just spent the better part of my day figuring this out and it must be posted *somewhere*!

Apparently, in OGNL, the @ symbol is for accessing stuff statically, and the $ is for accessing inner classes. In my case, I wanted to access an enum in one of my classes, which I did by doing:



In your case, I'm guessing this would work...



Again, I spent far too long looking for a solution. Apparently OGNL is partially undocumented. Bah!
 
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