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Posted to dev@commons.apache.org by co...@jakarta.apache.org on 2004/08/27 06:57:19 UTC
[jira] Updated: (JELLY-78) Null variables are passed over by scope inheritance
The following issue has been updated:
Updater: dion gillard (mailto:dion@apache.org)
Date: Thu, 26 Aug 2004 9:56 PM
Comment:
here's the patch I've tested with that implements this behaviour
Changes:
Attachment changed to jelly78.txt
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For a full history of the issue, see:
http://issues.apache.org/jira/browse/JELLY-78?page=history
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View the issue:
http://issues.apache.org/jira/browse/JELLY-78
Here is an overview of the issue:
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Key: JELLY-78
Summary: Null variables are passed over by scope inheritance
Type: Bug
Status: Open
Priority: Minor
Project: jelly
Components:
core / taglib.core
Fix Fors:
1.0-beta-4
Assignee: dion gillard
Reporter: Scott Howlett
Created: Tue, 26 Aug 2003 2:08 PM
Updated: Thu, 26 Aug 2004 9:56 PM
Description:
If I explicitly assign variable foo a null value in the current scope but it has a value in some parent scope, findVariable() will bypass the null value in favor of the non-null value up the chain.
This is because JellyContext.getVariable & findVariable just test the result of variables.get(name) against null instead of also checking with containsKey like this:
Object value = variables.get(name);
if ( value == null
&& !variables.containsKey(name)
&& isInherit() ) {
....
Perhaps this is an explicit design decision, but I thought it was worth mentioning.
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