Skip to main content

Weblogic - JavaEE 6 migration to JavaEE 7

Weblogic migration to 12.2.x 

There are significant changes done between JEE 6 and JEE 7. Weblogic 12.2.x uses JEE 7 and applications need to migrate the weblogic related configurations along with JEE API version.

In JEE7 many ejb and weblogic related schemas has been changed which I have listed down here. Required schema declaration for all related configurations are as given below.

  • weblogic-ejb-jar.xml

     <weblogic-ejb-jar xmlns="http://xmlns.oracle.com/weblogic/weblogic-ejb-jar"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://xmlns.oracle.com/weblogic/weblogic-ejb-jar http://xmlns.oracle.com/weblogic/weblogic-ejb-jar/1.7/weblogic-ejb-jar.xsd">

  • ejb-jar.xml

    <ejb-jar xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/ejb-jar_3_2.xsd"
version="3.2">

  • persistence.xml

    <persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_2.xsd" version="2.2">

  • beans.xml

    If this file is not present then you can create an empty file having below schema declaration in META-INF or WEB-INF folder of your application. It is used by CDI for beans injection and management.

    <beans xmlns="http://xmlns.jcp.org/xml/ns/javaee" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/beans_1_1.xsd" 
version="1.1" bean-discovery-mode="all">

  • weblogic.xml

    <weblogic-web-app xmlns="http://xmlns.oracle.com/weblogic/weblogic-web-app"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd
http://xmlns.oracle.com/weblogic/weblogic-web-app http://xmlns.oracle.com/weblogic/weblogic-web-app/1.9/weblogic-web-app.xsd">

  • web.xml

    <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" vrsion="3.1">

  • weblogic-application.xml

    <weblogic-application xmlns="http://xmlns.oracle.com/weblogic/weblogic-application"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.oracle.com/weblogic/weblogic-application http://xmlns.oracle.com/weblogic/weblogic-application/1.8/weblogic-application.xsd">

  • application.xml

    <application id="Application_ID" 
xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/application_7.xsd" vrsion="7">

Apart from above there could be some more changes specific to your application. For example, openejb, javaee, ejb, weblogic Jar dependencies. These you need to figure out in your application and need to upgrade accordingly.

Labels:

Comments

Post a Comment

Popular Posts

Setting up kerberos in Mac OS X

Kerberos in MAC OS X Kerberos authentication allows the computers in same domain network to authenticate certain services with prompting the user for credentials. MAC OS X comes with Heimdal Kerberos which is an alternate implementation of the kerberos and uses LDAP as identity management database. Here we are going to learn how to setup a kerberos on MAC OS X which we will configure latter in our application. Installing Kerberos In MAC we can use Homebrew for installing any software package. Homebrew makes it very easy to install the kerberos by just executing a simple command as given below. brew install krb5 Once installation is complete, we need to set the below export commands in user's profile which will make the kerberos utility commands and compiler available to execute from anywhere. Open user's bash profile: vi ~/.bash_profile Add below lines: export PATH=/usr/local/opt/krb5/bin:$PATH export PATH=/usr/local/opt/krb5/sbin:$PATH export LDFLAGS=...
104 comments
Read more

Singleton class in java

What is Singleton class Singleton is a design technique which gaurantees that there will be only instance of a class globally. Such classes are required when we need to create some objects which are memory/ resource extensive and we can't afford many such objects. Using singleton We can maintain single object per JVM per classloader. Classloader could be different in different hierarchy and in such case we may have more than one instances of singleton but we can avoid it by loading it at appropriate classloader. For example in an ear application there could be multiple web modules and each one of them will have their own singleton instance. Sometimes it may be a need but sometimes it could be a flaw which can be resolved by loading it either at ear level or web module level as per requirement. Implementing singleton class There are two different ways to implement singleton in java. Using singleton design pattern In this pattern we can create singleton either using lazy...
6 comments
Read more

Microservices with Spring Boot - complete tutorial

In this tutorial we are going to learn how to develop microservices using spring boot with examples. Main focus of this tutorial is on learning by doing hands-on. Before hands-on we will first understand what is microservices and related terminologies like DDD, 12-Factors App, Dev Ops. What is a Microservice In simple terms microservice is a piece of software which has a single responsibility and can be developed, tested & deployed independently. In microservices we focus on developing independent and single fully functioning modules. Opposite to microservice, with monolithic application it focuses on all the functionality or modules in a single application. So when any changes required to monolithic application it has to deploy and test the complete application while with microservice it has to develop and deploy only affected component which is a small service. It saves lot of development and deployment time in a large application. It's basically an architectural style ...
5 comments
Read more

Print English alphabets using for loop in Java

 In this post we will see how we can print the english alphabets [a-z] using for loop. One way is to have a character array of a-z and print it using loop. But there is another way to just print them using ascii code. What is ascii code There are total 256 numbers in ascii and each of which represents a specific character including alphabets. Numbers from 65-90 represents the alphabets in capital case [A-Z] and numbers from 97-122 represents alphabets in small case [a-z]. Printing alphabets using for loop with ascii numbers Below code prints alphabets in both capital and small cases using for loop. Here you can see we are using ascii numbers in for loop which are printed after type casted to character type where it automatically translate the number to equivalent character. public class PrintAlphabetsUsingLoop { public static void main(String[] args) { int alphabetsCount = 26; int capitalLetterStart = 65; int smallLetterStart = 97; System.out.println("Printing lette...
5 comments
Read more