The following comment has been added to this issue:
Author: Brian Minchau
Created: Tue, 14 Sep 2004 8:06 AM
Body:
For anyone who tries to clean this up, here is my understanding.
A "current node" is an XSLT concept. When a template is invoked it has a "current
node". A limited number of XSLT element change the "current node", and these are:
- <xsl:template match="..."> a template invoked due to a "match"
- <xsl:for-each>
- others ?
A "context node" is an XPath concept. When evaluating an XPath expression that occurs
in a stylesheet, e.g.
<xsl:apply-templates select="a/b/c"/>
the evaluation of an XPath expression starts with an initial "context node" being set
before the evaluation of the XPath expression. The evaluation of successive location
steps in the XPath expression start from that step's "context node".
The initial "context node" for the evaluation of the XPath expression is the same as
the "current node" but after that as location steps are successively evaluated the
"context node" changes at each step. Meanwhile the stylesheets "current node" stays
fixed during this XPath evaluation.
I hope this is clear and will help anyone who wants to clean up the code.
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View this comment:
http://issues.apache.org/jira/browse/XALANJ-1470?page=comments#action_53084
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View the issue:
http://issues.apache.org/jira/browse/XALANJ-1470
Here is an overview of the issue:
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Key: XALANJ-1470
Summary: Current Node and Context Node terminology
Type: Bug
Status: Unassigned
Priority: Blocker
Project: XalanJ2
Components:
Documentation
Versions:
2.5Dx
Assignee:
Reporter: Igor Hersht
Created: Fri, 4 Apr 2003 6:15 PM
Updated: Tue, 14 Sep 2004 8:06 AM
Environment: Operating System: All
Platform: Other
Description:
This is actually a suggestion.
In code and comments (a lot of files) we use incorrect terminology.
We use Current Node when we mean Context Node and vice versa.
As an example (see below from XPathContext).
1. "current context node" is wrong terminology
2. getContextNode returns getCurrentNode()
(getCurrentNode() is final).
/**
* Get the current context node.
* @return The current context node.
*/
public final int getContextNode()
{
return this.getCurrentNode();
}
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