8/12/2019 Application Module Extension in OAF

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 Application Module Extension in OAF

Like the Controller extension, AM extension is also not supported by Oracle. However for somebusiness needs we have to extend it sometimes.

Root AM Can’t be extended where as we can extend Nested AM’s only. 

This AM can be found under below BC4J packagemahi.oracle.apps.fnd.Employee.server.CreateEmployeeAM 

 Why we are extending AM:- 

This CreateEmployeeAM contains an apply method which subsequently commits thetransaction. 

 public void apply(){

getTransaction().commit();} 

Our business need is to capture user name and user id at runtime and insert it into a customaudit table for audit purpose 

Here is Audit Table script -- 

CREATE TABLE test_tab1( -- -------------------

-- Data Columns

-- --------------------user_id VARCHAR(50),user_name VARCHAR(50),-- --------------------- Who Columns-- -------------------last_update_date DATE NOT NULL,last_updated_by NUMBER NOT NULL,creation_date DATE NOT NULL,created_by NUMBER NOT NULL,last_update_login NUMBER

); 

Steps to Extend Application Module (AM) 

1. Create a New Application Module (AM) 

Right Click on Employee(is nothinh but your .jpr name in jdeveloper) > New > ADF BusinessComponents > Application Module 

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Package -- mahi.oracle.apps.fnd.Employee.server 

Name -- ExtnCreateEmployeeAM 

Extends -- mahi.oracle.apps.fnd.Employee.server.CreateEmployeeAM 

Click Next NextNext

Select the Generate Java File(s) Check Box

Click Finish.

 Write following code in ExtnCreateEmployeeAMImpl.java 

import oracle.apps.fnd.framework.OAException;import java.sql.PreparedStatement;import java.sql.Connection; 

public class ExtnCreateEmployeeAMImpl extends CreateEmployeeAMImpl{....

public void apply(){ java.sql.Date d = getOADBTransaction().getCurrentDBDate().dateValue();try{Connection conn = getOADBTransaction().getJdbcConnection();String Query = "insert into test_tab1 values(:1,:2,:3,:4,:5,:6,:7)";PreparedStatement stmt = conn.prepareStatement(Query);

stmt.setInt(1, getOADBTransaction().getUserId());stmt.setString(2, getOADBTransaction().getUserName());stmt.setDate(3, d);stmt.setInt(4, getOADBTransaction().getUserId());stmt.setDate(5, d);stmt.setInt(6, getOADBTransaction().getUserId());stmt.setInt(7, getOADBTransaction().getUserId());stmt.execute();}

catch(Exception exception){throw new OAException("Error in Staffing Query"+exception, OAException.ERROR);}

super.apply();}}

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2. Perform AM Substitution 

Double Click on Employee.jpx 

Business Components Substitutions 

Left Side : Base AM. i.e. CreateEmployeeAM 

Right Side : Custom AM. i.e. ExtnCreateEmployeeAM

Click on Add 

3. After substitution it will modify *.jpx 

In our case it will modify Employee.jpx at project location 

i.e. -- D:\xxxx\jdevhome\jdev\myclasses 

4. Migrate/ Import the modified jpx 

Open Command Prompt and go to following location of your projectD:\xxxx\jdevbin\oaext\bin 

Use this Import Command to import jpx 

Jpximport.bat D:\xxxx\jdevhome\jdev\myclasses\Employee.jpx -username apps -password

guptag123 -dbconnection

"(DESCRIPTION=(LOAD_BALANCE=YES)(FAILOVER=YES)(ADDRESS_LIST=(ADDRESS=(PROTOCOL=tcp)(H

OST=test.mahi.com)(PORT=1586)))(CONNECT_DATA=(SID= DEV2)))"

Once you Run the above command you will get a path for your Extension(Copy this path. Itwill be used to delete this extension if any error occurs)

5. Congratulation you have successfully finished. Run Your CreateEmployeePG page andTest Your Work 

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