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logic:notpresent vs logic;empty
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Ganesh Kumar
Ranch Hand
Joined: Jul 02, 2007
Posts: 113
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Hi,
Can anyone tell me the Difference between logic:notpresent and logic:empty
Thankyou
GaneshKumar
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Joe Sal
Greenhorn
Joined: Feb 06, 2006
Posts: 13
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usually notpresent is used for availability of roles so you can tailor your jsp pages based on roles. But it basically checks for the existance of objects.
empty is for checking if strings (length of 0) or collections (null) are empty.
[ August 16, 2007: Message edited by: Joe Sal ]
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Ranjit Gopinathan
Ranch Hand
Joined: Jul 03, 2007
Posts: 46
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The wrapped content of notPresent tag is processed based on whether the object specified does not exist.
notPresent tag can be used with these attributes
cookie, header, parameter , name ,property, role and user
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subject: logic:notpresent vs logic;empty
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