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variable element

tony wang

Joined: Apr 13, 2002
Posts: 14
In DTD there's <!ELEMENT variable ( (name-given | name-from-attribute), variable-class?, declare?, scope?, description?) >
Does the element define a variable used in a tag?
<a:b ..>
<%= a_var.getX()%> <% String s=a_var2;%> ..
a_var & a_var2 are scripting variable defined in variable element. Right?

Madhav Lakkapragada
Ranch Hand

Joined: Jun 03, 2000
Posts: 5040
Yes, the DTD for the TLD defines this and the purpose is correct. However, I have never used them. And I understand that we must use them through the TEI (Tag Extra Info) class. I have never used them so I don't have an example handy, right now.
Anyone else, please....
- madhav

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Dani Mazzuca
Ranch Hand

Joined: May 21, 2003
Posts: 70
It is better to use "variable" instead of TEI (if you can). You can use it por example in:
<tt:lookup id="tx" type="UserTransaction" name="java:comp/UserTransaction" />
<% tx.begin(); %>

See the j2ee tutorial for more explanations.
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subject: variable element
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