Java Reference
In-Depth Information
EJB 3.0 Database
Persistence with Ajax in the UI
While EJB 3.0 has facilitated database persistence, Ajax has simplified the user
interface facet of web applications. Asynchronous JavaScript And XML ( AJAX ) is
a web technique for developing asynchronous web applications using JavaScript,
Document Object Model ( DOM ) and XMLHttpRequest technologies. AJAX provides
dynamic interaction between a client and a server. In this chapter, we discuss
the following:
• The XMLHttpRequest object
• Creating an EJB 3.0 application
• Creating a data source in WebLogic Server
• Creating an entity bean
• Creating a wrapper session bean
• Creating a servlet client
• Creating an Ajax user interface
• Deploying the EJB 3 application to WebLogic Server
• Testing the Ajax user interface
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