Embedded Maps as arguments

2009-01-26 Thread Matthew Seaborn 
As I have grid of checkboxes I am currently trying to use embedded maps as 
arguments in Struts 2, for example using

@CreateIfNull( value = true )
@Element( value = HashMap.class )
public MapInteger, MapInteger, Boolean getTestMap() {
return testMap;
}

Using

/testAction.action?testMap[1][2]=true

Although it places the value in the right place, it is always

ognl.noConversionPossible


This has been discussed here 
(http://www.nabble.com/struts2-map-of-maps-td18882730.html ) but with no 
resolution.

Has anyone one this successfully?



Matthew Seaborn
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Re: Embedded Maps as arguments

2009-01-26 Thread Jeromy Evans 


On 27/01/2009, at 4:57 AM, Matthew Seaborn wrote:

As I have grid of checkboxes I am currently trying to use embedded  
maps as arguments in Struts 2, for example using


@CreateIfNull( value = true )
@Element( value = HashMap.class )
public MapInteger, MapInteger, Boolean getTestMap() {
return testMap;
}

Using

/testAction.action?testMap[1][2]=true

Although it places the value in the right place, it is always

ognl.noConversionPossible




Hi Matt,
I haven't tried this myself, but I'd take the following steps to try  
to isolate it:


 1. instantiate the empty map of maps yourself prior to the params  
getting set.  Erasure may be preventing OGNL from instantiating the  
inner map because it can't determine the type.


 2. I'd try quoting those numbers so it's unambiguous that it's  
addressing an entry and not an index.  Shouldn't matter though, but I  
don't trust it.