Modern Java Coding

In an enterprise application deployment scenario, there are many cases where some libraries are used/referenced by multiple applications. It would indeed be a bad design to include such common libraries with every application deployed on the WebLogic server. Not only does it prevent redundancy of resources on the server, it also consumes valuable space & deployment time - especially when the libraries are huge. WebLogic server offers the shared library concept using which EARs, JARs, EJBs and WARs can be shared across applications in a WebLogic domain. Let us now see how to package and deploy a shared library in WebLogic server; Step 1: Create a folder structure as shown below Step 2: Copy all the libraries (in this case JAR files) that you would want to share across applications to the lib folder under WEB_INF Step 3: Create a file under META_INF folder by name "MANIFEST.MF" Step 4: Contents of the MANIFEST.MF file are shown below Manifest-Version: 1.

Configure ADF Logger 12c Oracle ADF 12c has very good error or exception logging mechanism. You have to define logger for your class or package and handler using em. Open logging.xml file stipulated at loc : <Middleware_home>/ Oracle_Home\user_projects\domains\XXX_domain\config\fmwconfig\servers\AdminServer Add logger to this file as below, <logger name=<class name or package name> level='FINEST' useParentHandlers='true'> Note: use full qualified class and package name and set appropriate logger level In EM, go to Log configuration for your application, Create you handler as below, Provide specific logger for you handler as below; Set appropriate logger level as you defined in your logger. Add your logger name that you have created in Logging.xml file. And verify you logs in file or EM.

Creating RCU for ADF Development Creating the Rcu for ADF development  Once the ADF Development  had  been installed then we can start the RCU  for the database before start configuration of the domain .. The RCU will create the seeded schema which will be used for the different services of the middleware We had used 12c database with the Oracle Linux six for this Practice  Step 1 Navigate to the middle ware home and from the oracle_common and bin and start the rcu Step 2 Click next to proceed to the next page Step 3 There are three options which gives more flexibility for a person to run [1]system load and product load   only run by the user who has the dba privileges [2]Prepare Scripts for System Load -- it will create the script which contains all the schema  we need to provide the script to the person who has the sysdba privileges and execute the script once the system load is done by the dba then the non dba can run the product load  

Installing and Configuring ADF development in weblogic 12c  In this practice we will go through the installing the ADF and configuring the Domain for the web logic  Step 1 Start the installer  as the java -jar fmw_infra_121200.jar to install the ADF development it will install the web logic ..or if the web logic is already installed you can extend it Step 2 Provide the Oracle Middle ware Home Location for the Installation Step 3 Select the Installation type if it is the dev instnace select the fusion Middle ware infrastructure with examples Step 4 Once the Prerequisite check's had been completed successfully then proceed to the next step Step5 Check the installation summary and save the response file Step 6 Once all the installation Process had been completed successfully then Proceed to next step Once the summary page click finish to finish the installation After completing the installation now we need to proceed to cre