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Posted to dev@struts.apache.org by bu...@apache.org on 2003/12/30 19:15:21 UTC
DO NOT REPLY [Bug 25827] New: -
how to access data source when managing DB in a servlet?
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=25827
how to access data source when managing DB in a servlet?
Summary: how to access data source when managing DB in a servlet?
Product: Struts
Version: 1.1 Final
Platform: Other
URL: http://jakarta.apache.org/struts/faqs/database.html#mult
i_dsrc
OS/Version: Other
Status: NEW
Severity: Enhancement
Priority: Other
Component: Documentation
AssignedTo: struts-dev@jakarta.apache.org
ReportedBy: hauser@acm.org
This is a documentation RFE.
Right now, the documentation describes how the datasources configured in
struts-config.xml can be accesses within each Action's execute method.
An alternative pattern is to handle all db-related matters in an own
public class Database extends ActionServlet { ...
In the Actions, I then obtain that db servlet object from the application scope
where I put it during init() with "servlet.getServletContext().getAttribute(
Constants.DATABASE_KEY);"
What I would like to have documented is how to access the datasource (that is
not defined in server.xml as <Resource ... type="javax.sql.DataSource"/> but
only int the struts-config) during this init() where there is neither an Action
Object nor a "request" parameter yet.
As long as I have just one of them, I can "cheat" with
BasicDataSource dataSource =
(org.apache.commons.dbcp.BasicDataSource)
getServletContext().getAttribute(org.apache.struts.Globals.DATA_SOURCE_KEY);
But how would I do that if I have multiple datasources defined as per the above URL?
This will become especially important if one wants to use a read-write cluster
as per Bug 25511
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