All Examples  All WebLogic Enterprise Connectivity Examples  JSP University Example

jsp_servlet
Class UniversityHelper

java.lang.Object
  |
  +--jsp_servlet.UniversityHelper

public class UniversityHelper

extends java.lang.Object

This example demonstrates how a WebLogic Servlet can connect to WebLogic Enterprise and invoke operations on CORBA objects. This contains a set of methods which are called by the jsp servlets that are included as part of this sample.

• When the Weblogic Server comes up, it opens multiple connections to the WebLogic Enterprise IIOP listener.
• The servlet picks up a connection from the connection pool; that is, it acts as a WebLogic Enterprise client and gets a client context from the bootstrap factory.
• The servlet then finds the factory finder and the Registrar factory and gets the Registrar object.
• When the user submits the form, the appropriate operation is invoked. This request goes through the ISL/ISH to the appropriate server in the WebLogic Enterprise domain.
• The server performs the requested operation and sends the data back to the servlet.
• The servlet returns the data to the client browser within some generated HTML.

Field Summary
UniversityT.Registrar	gRegistrarObjRef
UniversityT.StudentDetails	gStudentDetails
org.omg.CosTransactions.Current	gTransCur

 

Constructor Summary

UniversityHelper()

 

Method Summary
UniversityT.CourseDetails[]	get_course_details(java.lang.String courseNum)
UniversityT.CourseSynopsis[]	get_courses(java.lang.String aCriteria)
org.omg.CosTransactions.Current	getTransCur()
void	univInit()           Since there is no way to override the init method, we need to come up with a local initialization method which can be called from a jsp servlet.
boolean	verifyStudent(java.lang.String studentIden)

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

gRegistrarObjRef

public UniversityT.Registrar gRegistrarObjRef

gStudentDetails

public UniversityT.StudentDetails gStudentDetails

gTransCur

public org.omg.CosTransactions.Current gTransCur

UniversityHelper

public UniversityHelper()

univInit

public void univInit()
              throws java.lang.Exception

Since there is no way to override the init method, we need to come up with a local initialization method which can be called from a jsp servlet. It initializes the servlet. Here, we get the Bootstrap object, the Factory Finder and the Registrar factory during the startup.

Throws:

java.lang.Exception - if the servlet fails

getTransCur

public org.omg.CosTransactions.Current getTransCur()

verifyStudent

public boolean verifyStudent(java.lang.String studentIden)
                      throws java.lang.Exception

get_courses

public UniversityT.CourseSynopsis[] get_courses(java.lang.String aCriteria)
                                         throws java.lang.Exception

get_course_details

public UniversityT.CourseDetails[] get_course_details(java.lang.String courseNum)
                                               throws java.lang.Exception