I should have a closer look at this... seems all very useful to know!

Thanks again!

Torsten

Sami Dalouche schrieb:
> Hi,
> 
> OGNL is yet another language  that one can use to access properties and
> methods. You can see it as a simplified language (like Groovy or Java
> itself) that is focused on data binding. 
> 
> To KISS, in Java, you would access your properties using :
> 
> obj.getProperty1().getProperty2().methodCall()
> 
> in OGNL, the syntax would be :
> obj.property1.property2.methodCall()
> 
> 
> In Java, you choose the object on which you apply the getProperty1()
> method. In OGNL, the object is implicit, and is called a context map. 
> A context Map is just a simple Hash Map where one of the objects is
> chosen as the ROOT. 
> 
> Struts2 has arbitrarily chosen to choose the Value Stack as the ROOT.
> So, that means that all the properties you call and your action's
> properties. 
> Another popular web framework, Tapestry, also uses OGNL. The Component /
> Page in Tapestry is the OGNL ROOT. 
> 
> Hope that helps,
> Sami Dalouche
> 
> 
> Le lundi 28 mai 2007 à 01:21 +0200, Torsten Römer a écrit :
>> Thanks Sami,
>>
>> That did definetely help, was just what I was looking for!
>>
>>> In Struts2, properties are accessed using the OGNL language
>> Somehow I haven't really realized what this actually means...
>>
>> Torsten
>>
>> Sami Dalouche schrieb:
>>> Hi,
>>>
>>> Not sure if I understand your question correctly, but it seems you are
>>> trying to make a Java method call from your View.
>>>
>>> In Struts2, properties are accessed using the OGNL language. The OGNL
>>> reference is available from http://www.ognl.org/.
>>>
>>> In particular, it is possible to make any method call using OGNL, using
>>> the simple syntax :
>>> myMethod(param1, param2)
>>>
>>> so, in your case, it could be
>>> getVehicles('car')
>>>
>>> Hope that helps,
>>> Regards,
>>> Sami Dalouche
>>>
>>> Le dimanche 27 mai 2007 à 20:15 +0200, Torsten Römer a écrit :
>>>> I guess this has been asked before but I have trouble finding an answer,
>>>> if it is somehow possible to give arguments to property calls in tags.
>>>> For example, if I'd have "vehicles" as list attribute in <s:select>,
>>>> that I could give literal arguments like "car" or "motorcycle" and have
>>>> a method like getVehicles(String type) { ... } in my backing bean.
>>>>
>>>> A simple "yes" or "no" would already be very helpful :-)
>>>>
>>>> Torsten
>>>>
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