hi Ahmed,
JAR files are not "loaded" by Tomcat. A jar file is just a container of
classes, the classes are loaded by the JVM when the code makes reference to
them.
If you specify a <Resource> on your context.xml, then Tomcat will look
for those classes (the driverClassName), but that does not mean that a
connection to the database is established at that point in time. It only
means that the driver has been loaded.
Your application is responsible to ask for a connection whenever it
wishes.
On Sat, Dec 5, 2009 at 7:17 AM, ahmed kasim <callka...@yahoo.com> wrote:
> Hi,
>
> I have few jars which need to get loaded only when the war file is getting
> loaded or when the request comes, to be more clear I have some jar which is
> having connection to DB, if I specify in my context.xml file it is getting
> loaded when the server getting started up initially, so I want to avoid this
> and make it when my war file gets loaded the db connection should get
> loaded.
>
> <Resource name="jdbc/DB2DS" auth="Container" type="javax.sql.DataSource"
> driverClassName="com.ibm.db2.jcc.DB2Driver"
> url="jdbc:db2://localhost:50000/SPARK" username="db2admin"
> password="d...@dmin" maxActive="20" maxIdle="10" maxWait="-1"/>
>
> I have three jar file specified for Resource , if i place jar file it is
> getting loaded and server starts up looking for connection with db.
>
> How can I avoid server starting time look up and make it available only
> when I deploy the war file.
>
> many thanks,
> Kasim
>
>
>
