This is a sample project to demonstrate Scala and Java EE 7 for the presentation at JavaOne 2014.
Are you new to Java EE 7? Did you know I am the author of Java EE 7 Developer Handbook?
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- If you use Mac OS X or Linux then you can install Gradle using the GVM Groovy Environment Manager. GVM can also install Groovy, Grails, Griffon, etc
Download in stall GlassFish 4.0 some where
unzip ~/Downloads/glassfish-4.0.1-b05-20140427.zip -d /Library/opt
Configure your IDE to installation directory for GlassFish 4.
echo $GLASSFISH_HOME /Library/opt/glassfish-4.0.1-b05-20140427
Download Gradle 2.0 or on the Mac OS X, install using the GVM tool. With Gradle set up and configured to your PATH environmment variable, the following commands should work:
Generate IntelliJ projects file with the following command:
gradle idea
Generate NetBeans projects file with the following command:
gradle netbeans
Generate Eclipse projects file with the following command:
gradle eclipse
To clean out the project, here is the command:
gradle clean
In order to build, the entire project with Gradle use the following command:
gradle build
To executes the tests in the project, use this following command:
gradle test
If you simply want to see the WAR file, then execute this command:
gradle war
Gradle creates it output in the build folder.
Tested with WildFly 8.1 DONE Tested with GlassFish 4.0 DONE
JMS Set up
First, start the application in IDEA or Eclipse that will launch the GlassFish application server. Otherwise, start GlassFish manually on your workstation.
Navigate to the GlassFish Administration console http://localhost:4848/common/index.jsf
On the left hand pane, of the Admin page select the JMS node, then choose JMS Connection Factory. Create a new connection factory with the following information:
JNDI name: jms/OrderQueueConnectionFactory Resource type: javax.jms.QueueConnectionFactory Description:
Save this new JMS connection factory.
Now select JMS node again and then choose Destination Resources. Create a new JMS destination with the following properties:
JNDI name: jms/OrderQueue Physical Destination NAME: OrderQueue Resource type: java.jms.Queue Description:
Save this new JMS queue.
Redeploy the WAR file again and/or restart the GlassFish server. The application should now complete successfully when the customer declares yes on the final wizard step.
Are you using Intelli J 13.1 on Mac OS X and GlassFish 4.1?
After upgrading to GlassFish 4.1, I found a strange error run a local managed server GlassFish execution: glassfish Server is not connected. Deploy is not available.
The solution is to change the JVM Setting that IntelliJ runs under from (Apple) JDK 1.6 to JDK 1.7 or 8. If you change it suddenly you will get Retina edition font rendering as a bonus http://stackoverflow.com/questions/17365498/problems-with-glassfish-4-debug-in-idea-12-1
Speakers: Peter Pilgrim
Title can only be 80 characters long
Abstract: 750 words
Scala is an alternative JVM language with both object-oriented and functional programming paradigms. Scala development with the Java EE 7 platform is definitely possible and can be a pleasant experience. If you have uncertainty about how Scala can fit around the Java EE 7 platform, then this session aims to illustrate the huge benefit that Scala adoption can bring to the platform. Many other developers are taking advantage and the challenge of the JVM’s capability of being a vessel for multi-language programming. You no longer have to write every single project using Java, even if you like Lambdas experiences.
For the developer and engineering terms that feeling a little braver than usual, Scala is attractive as it is strongly typed and lets you set the gauge on how object oriented or how functional you want to be. You will learn how to reuse the annotations and creating Scala plain object safely and concisely.
This session will highlight and contrast the experience I had developing Scala solutions with Java EE, and there will be plenty of advice about using the functional programming features against the Java object oriented API.
- Scala language overview
- Java EE 7 architecture and design
- WildFly 8 application server
- Using Gradle as a build tool
- How to create beans in Scala with dependency injection
- JAX-RS endpoints
- Servlet Endpoints
- JMS Messaging (not enough time to show in the technical session)
- Scala adoption advice and hints for sustainable team development
Peter Pilgrim September 2014 JavaOne
Email: peter.pilgrim@gmail.com Blog: www.xenonique.co.uk/blog