DataSource in OCJ4, how is it possible ?

Question

I use JDevelopper 10.1.2.0.0 to develop, then deploy to tomcat. I want to use datasources on both ocj4 (for test) then with tomcat. As datasources needs to be configured differently on both platforms (right ?), and since datasource naming are different I put the following code:
InitialContext initCtx=null;
try {
initCtx = new InitialContext();
logger.debug("Using tomcat datasource");
ds = (DataSource)initCtx.lookup "java:comp/env/jdbc/myTomcat_CP");
catch(NamingException ne){       
try {
logger.debug("Using oc4j datasource");
ds = (DataSource) initCtx.lookup("jdbc/myOCJ4_CPCoreDS"); // JNDI Name
catch (NamingException ne2){
ne2.printStackTrace();
I also put this lines in web.xml (for tomcat):
<resource-ref>
<res-ref-name>jdbc/myTomcat_CP</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
Of course I've done what have to be done in tomcat server.xml, to define myTomcat_CP properties (driver, url, user, passwd, ...).
In OCJ4 server, I have NO connection to any tomcat server, but have several datasources defined.
When I test a program within OCJ4, what a surprise, the tomcat connexion pool definition is used and it works. I really don't understand how OCJ4 can find and use this tomcat definition CP, since the datasource lookup names are really different. I don't remember to gives OCJ4 the way to know about tomcat CP, so how can OCJ4 find the name "myTomcat_CP" and the properties of that pool ??
If I change "myTomcat_CP" name in both source code and web.xml, the CP keeps working ok.
How is this possible ???
Any explanation would be appreciated...
Bernard Paris

Answer 1

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