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From "J.J. Larrea (JIRA)" <>
Subject [jira] Commented: (SOLR-133) change XmlUpdateRequestHandler to use StAX instead of XPP
Date Thu, 01 Feb 2007 22:44:05 GMT


J.J. Larrea commented on SOLR-133:

It would be useful if there first were some consensus as to what the goals are for making
a change to the XML Update Handler; some possibilities I can think of include:

1) To use standards-based rather than non-standards-based technologies as much as possible
2) To use as few different XML technologies (and coding styles related to the technology)
as possible
3) To reduce as much as possible the complexity of code needed for interpreting XML command
and/or configuration streams
4) To lower resource consumption and limitations for XML handling, e.g. stream-based rather
than random-access

By all means add to that list, prioritize, and remove goals which are not seen as important.

Then it seems to me the question would be how many of those goals are addressed by changing
XML Update Handler to stAX, vs. other technologies.  One might at the same time also want
to look at other places where SOLR decodes XML such as config files, to see if there can be
more commonality rather than continued isolation.

> change XmlUpdateRequestHandler to use StAX instead of XPP
> ---------------------------------------------------------
>                 Key: SOLR-133
>                 URL:
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: Hoss Man
> there has been discussion of using StAX for XML parsing of updates instead of XPP ...
opening an issue to track it as a possible improvement  (orriginally mentioned in SOLR-61,
but that task was more specificly about refactoring the existing code)

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