how to use ognl in tapestry 5

[hari ks]

hi,

   How to use ognl expression with methods arguments in tapestry 5? ( like 
inside <t:if > component). 
In tapestry 4 I had used ognl:myObj.callMyMeth('arg1')..

I got following exception while trying to call method :
Could not convert 'prop:mySessionWrapper.getAttribute('adminUserName')' into a 
component parameter binding: Class com.myc.tapestry.mdl.MySessionWrapper does 
not contain a property named 'getAttribute('adminUserName')' (within property 
expression 'mySessionWrapper.getAttribute('adminUserName')'). Available 
properties: class.


Thanks in advance,
Hari.


      


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