Building JSP based MDDB viewers with webaf 2.0

Transcription

1 Building JSP based MDDB viewers with webaf 2.0 Anton Fuchs Product manager Web/Wireless solutions SAS EMEA

2 Overview Server side java compared to applets Introduction to JavaServer Pages (JSP) AppDev Studio and OLAP Creating OLAP viewers using webaf 2.0 (Demo) Conclusion Questions and Answers 2

3 Server side java compared to applets What are applets? Java applications that run in a web browser Downloaded from a web server Run in a secure environment (sandbox). 3

4 Server side java compared to applets Thin-Client Web Server Web Browser request Java Class Libraries 4 Copyright 2001, SAS Institute Inc. All rights reserved.

5 Server side java compared to applets Thin-Client Web Server Web Browser libraries Java Class Libraries 5

6 Server side java compared to applets Thin-Client Web Server Web Browser Starting Virtual Machine Java Class Libraries 6

7 Server side java compared to applets Thin-Client Web Server Web Browser Execute Java Class Libraries 7

8 Server side java compared to applets Applets are good when You need a high degree of user interaction You have a full featured client platform You have a good net infrastructure 8

9 Server side java compared to applets What is server side java? Java applications that run on the server side Servlets and JavaServer Pages Output is html or any markup language HTML is returned to a web browser 9

10 Server side java compared to applets Thin-Client Web Server Java Engine Web Browser request JSP page or Servlet requested 10

11 Server side java compared to applets Thin-Client Web Server Java Engine Web Browser JSP page or Servlet requested 11

12 Server side java compared to applets Thin-Client Web Server Java Engine Web Browser Results returned, normally as markup 12

13 Server side java compared to applets Thin-Client Web Server Web Browser Markup Java Engine 13

14 Server side java compared to applets Thin-Client Web Server Java Engine Web Browser 14

15 Server side java compared to applets Server side Java strength No need to worry about the deployment environment Access to the full features of the Java Environment No Java Sandbox security problems No need to worry about the use of a Java Plug- In (unless you stream back HTML that contains Applet tags!) 15

16 Server side java compared to applets Applets are good when You need a high degree of user interaction You have a full featured client platform You have a good net infrastructure With server side Java You get around security issues Deployment and Maintenance is easy No delay because of class downloads 16

17 Introduction to JavaServer Pages (JSP) A JavaServer Page is An HTML Page (that contains normal HTML tags) with embedded Java code A file saved with a.jsp extension Essentially a file that will be compiled to a Java Servlet by an engine the first time it is called Can be designed in your favorite HTML editor JSP can be used to Replace traditional CGI processing Access enterprise services (RMI, CORBA, Data Bases) 17

18 Introduction to JavaServer Pages (JSP) JSP Page Request Has it been called before? YES Did it change since last time? NO YES NO Compile it to a Servlet Next Execute Servlet 18

19 Introduction to JavaServer Pages (JSP) What are custom tags? User-defined JSP language element HTML-like tags No java code in your JSP page Java code is hidden in libraries Web Page Designer Component Developer Java Expert HTML Expert 19

20 AppDev Studio and OLAP What is OLAP? High performance access to large amounts of summarized data Allows users the ability to analyze their data Fast access to data along any business dimensions 20

21 AppDev Studio and OLAP SAS/EIS Viewer SAS/OLAP Server Fat Client MDDB Model OLAP/HOLAP Thin Client SAS/Intrnet MRV webeis/webaf Applet webeis/webaf JSP 21

22 AppDev Studio and OLAP By 2002, more than 90 percent of new BI deployments will favor a server-centric & Web-based approach Gartner Group

23 Creating OLAP viewers using webaf 2.0 and JavaServer Pages 23

24 Conclusion With webaf 2.0 you can easily create OLAP/MDDB viewers. It offers an easy to use visual development environment. You can use JavaServer Pages with custom tags HTML like syntax which is easy to understand Java code is hidden Web designers can use them 24

25 25 Copyright 2001, SAS Institute Inc. All rights reserved.

26 26 Copyright 2001, SAS Institute Inc. All rights reserved.