Re: JNDI Datasource question
Jake, thanks, this is a great answer and answers my question exactly. :) Especially the META-INF/context.xml. was somthing that I must have overlooked Ron On Mon, 2002-12-02 at 11:09, Jacob Kjome wrote: Hi Ron, That is referring to a context configuration file. You *always* need to set up your DataSources through the proprietary server configuration. The stuff in the web.xml only defines the interface. For instance, if you set up DBCP specific stuff in the web.xml file, your app would be dependent on running under Tomcat and be incompatible with every other app server. JNDI is meant to provide a standard interface while allowing the vendor to provide a proprietary implementation. That way, you get to code to a standard and you get to pick the vendor who provides the best implementation (by your own definition). That provides for both standards *and* market competition. Neat, eh? See the following for context configuration files: http://jakarta.apache.org/tomcat/tomcat-4.1-doc/config/host.html#Automatic%20Application%20Deployment Also, look at admin.xml and manager.xml in CATALINA_HOME/webapps for reference. I addition, Craig R. McClanahan pointed out the following when deploying via the manager app: quote For the deploy command, simply include your context confgiuration file in the WAR at META-INF/context.xml. In Tomcat 4.1, you can dynamically deploy a context configuration file instead of, or along with your webapp. Such a file can contain the Context element, and all nested subelements, from what you would normally put in server.xml, so you can indeed dynamically deploy an app with a custom realm. /quote Jake -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
JNDI Datasource question
Evening A question to grow my knowledge:) On tomcat 4.1.12-LE-jdk14 deployment with java jsdk 1.4.1_01-b01 I have installed the two missing jar files from commons (dbcp and pool) and made the example from the documentation (/DBTest) work. Great work, well written and very clear. So my question. If I want to use DataSources I always need to change or add Contect (or defaultContext) in the conf/server.xml? According to the documentation I can define a Resource as: Context ... ... Resource name=jdbc/EmployeeDB auth=Container type=javax.sql.DataSource description=Employees Database for HR Applications/ ... /Context in server.xml or as resource-ref descriptionEmployees Database for HR Applications/description res-ref-namejdbc/EmployeeDB/res-ref-name res-ref-typejavax.sql.DataSource/res-ref-type res-authContainer/res-auth /resource-ref int web.xml of an application that is deployed. But where to I put all the values named in the ResourceParams entries if I want to declare them from the web.xml file? Ron -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: JNDI Datasource question
Hi Ron, That is referring to a context configuration file. You *always* need to set up your DataSources through the proprietary server configuration. The stuff in the web.xml only defines the interface. For instance, if you set up DBCP specific stuff in the web.xml file, your app would be dependent on running under Tomcat and be incompatible with every other app server. JNDI is meant to provide a standard interface while allowing the vendor to provide a proprietary implementation. That way, you get to code to a standard and you get to pick the vendor who provides the best implementation (by your own definition). That provides for both standards *and* market competition. Neat, eh? See the following for context configuration files: http://jakarta.apache.org/tomcat/tomcat-4.1-doc/config/host.html#Automatic%20Application%20Deployment Also, look at admin.xml and manager.xml in CATALINA_HOME/webapps for reference. I addition, Craig R. McClanahan pointed out the following when deploying via the manager app: quote For the deploy command, simply include your context confgiuration file in the WAR at META-INF/context.xml. In Tomcat 4.1, you can dynamically deploy a context configuration file instead of, or along with your webapp. Such a file can contain the Context element, and all nested subelements, from what you would normally put in server.xml, so you can indeed dynamically deploy an app with a custom realm. /quote Jake At 10:02 PM 12/1/2002 +0100, you wrote: Evening A question to grow my knowledge:) On tomcat 4.1.12-LE-jdk14 deployment with java jsdk 1.4.1_01-b01 I have installed the two missing jar files from commons (dbcp and pool) and made the example from the documentation (/DBTest) work. Great work, well written and very clear. So my question. If I want to use DataSources I always need to change or add Contect (or defaultContext) in the conf/server.xml? According to the documentation I can define a Resource as: Context ... ... Resource name=jdbc/EmployeeDB auth=Container type=javax.sql.DataSource description=Employees Database for HR Applications/ ... /Context in server.xml or as resource-ref descriptionEmployees Database for HR Applications/description res-ref-namejdbc/EmployeeDB/res-ref-name res-ref-typejavax.sql.DataSource/res-ref-type res-authContainer/res-auth /resource-ref int web.xml of an application that is deployed. But where to I put all the values named in the ResourceParams entries if I want to declare them from the web.xml file? Ron -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
JNDI DataSource Question
Hi, I had posted this question some time back and am posting just in case some one may have just missed it. I am trying to get a JNDI connection to a datasource. For this I defined my datasource exactly as it is described in the Tomcat docs - define a resource in WEB.XML and in SERVER.XML When I try to connect, my context keeps returning me a NULL DataSource. I read thru all of the mails in the list, I could not get any definite pointers. Can someone who has solved the problem, please point me in the right direction. Thankyou for the time, Krishna. _ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED]
Re: JNDI DataSource Question
At 01:34 PM 12/14/01 +, you wrote: Hi, I had posted this question some time back and am posting just in case some one may have just missed it. I am trying to get a JNDI connection to a datasource. For this I defined my datasource exactly as it is described in the Tomcat docs - define a resource in WEB.XML and in SERVER.XML When I try to connect, my context keeps returning me a NULL DataSource. I read thru all of the mails in the list, I could not get any definite pointers. Can someone who has solved the problem, please point me in the right direction. Thankyou for the time, Krishna. Your problem inevitably has to be that your code is referencing something that is not being found. That leaves two potential problems: (1) you don't have your data source from your service provider in the right place; (2) you don't have a reference as required to where you have the datasource. If you have the data source in the right place, there should be a default reference, so (1) is probably it. Where do you have the data source sitting? -- micael -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED]
Re: JNDI DataSource Question
Hi, Thankyou for the mail. my datasource is sitting on the local computer and I can connect with a normal JDBC Connection. The same driver properties I use to create a datasource in server.xml and it fails. I thought it can be a problem like Tomcat failing if we have the servlet.jar in java/lib/ext, so I cleaned it out. Any pointers? Krishna. _ Chat with friends online, try MSN Messenger: http://messenger.msn.com -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED]
Re: JNDI DataSource Question
At 07:07 PM 12/14/01 +, you wrote: Hi, Thankyou for the mail. my datasource is sitting on the local computer and I can connect with a normal JDBC Connection. The same driver properties I use to create a datasource in server.xml and it fails. I thought it can be a problem like Tomcat failing if we have the servlet.jar in java/lib/ext, so I cleaned it out. Any pointers? Krishna. I hate to ask silly questions, but because you provide no details, I have to guess. You are using javax, right? -- micael -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED]
