Public, Protected, and Private Interfaces... Yes Interfaces.

One of the junior developers came to me on Friday and asked if an interface could be private, or protected. I said sure, but it must be an inner interface. The interface must be contained within a containing class. So I decided to create a couple of examples of interface fun for you to appreciate.

The NetBeans project is located here: interfaces.zip

code

JSF 2 on JBoss AS 5.1.0

I was confronted with a requirement to run JSF 2 on JBoss Application Server 5.1.0 on Friday. As you may know, JSF 2.0 will run on Java EE 5 application servers, but not with all the bells and whistles that we have come to expect with Java EE 6.

Requirements

• JBoss Application Server 5.1.0 GA
• JSF 2.0.9

Instructions

1. Install JBoss Application Server.
2. Make sure that the server is not running.
3. Go to the <jboss_home>/server/default/deploy/jbossweb.sar/jsf-libsdirectory.
4. move the jsf-api.jar and jsf-impl.jar to a safe location. We will be replacing it with the javax.faces.jar from the JSF 2.0.9.zip distribution.
   Note: the javax.faces and com.sun.faces files are combined in one jar now. The Mojarra Reference Implementation is in a single jar now.
5. Go to the <jboss_home>/server/default/deployers/jbossweb.deployer directory.
6. Open the web.xml in a text editor and comment out the following lines:
   
7. Start the application server and check the logs. You should see something like the following:

   14:23:30,058 INFO [TomcatDeployment] deploy, ctxPath=/admin-console
   14:23:30,257 INFO [config] Initializing Mojarra 2.0.9 (SNAPSHOT 20120202) for context '/admin-console'
   14:23:45,013 INFO [application] JSF1048: PostConstruct/PreDestroy annotations present. ManagedBeans
   methods marked with these annotations will have said annotations processed.

Summary

You should be able to install and use JSF 2 with Java EE 5 Application servers like JBoss AS 5.1.0 without issues by simply updating the required JSF libraries.

JSF 2.0 JQuery-JSF Integration

I am publishing an example of how to use jQuery with JSF. This is a basic jQuery Dialog which is integrated into a JSF 2.0 Reference Implementation (Mojarra) page.

There are a couple of JSF frameworks which take extensive use of jQuery like PrimeFaces which I would highly recommend.

This is just a simple example to show you how to get started.

Here is the NetBeans Apache Maven Mercurial project: jquery-jsf-integration

index.xhtml

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included.xhtml

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JDBC-ODBC Bridge Example

I was recently asked how to use the JDBC-ODBC bridge. I told the person asking that "normally" you would want to use JDBC, and that the Sun developed bridge is not really for production use. I was reminded that there are some old databases out there which only support ODBC connections from Windows.

I wrote a quick example of how to use it which I thought I would share. I had to think about how to do it since it has been so long since I did such a thing. There are two examples of how to connect: one example is a "standard" JDBC connection, and the other takes advantage of the DataSource abstraction.

Note: I created an ODBC connection in Windows to the database called JDBCODBC for this example to work.

Here is the NetBeans code for the project: JavaJDBCODBC.zip