2.6 Oracle Application Server Applications

   

The following sections provide brief descriptions of the applications that are part of the architecture of Oracle Application Server. Each application, or set of applications, is covered in it own chapter; the following sections focus on how they fit into the overall architecture of Oracle Application Server.

2.6.1 OracleAS Portal

OracleAS Portal performs its basic construction of portal pages in the Portal Page Engine, which is a J2EE application. OracleAS Portal also makes extensive use of the PL/SQL language in the construction of its pages. OracleAS Portal is closely integrated with the OracleAS Single Sign-on capability provided by the Oracle Identity Management infrastructure, so an OracleAS Portal installation requires an infrastructure.

Chapter 13 describes OracleAS Portal in detail.

2.6.2 OracleAS Wireless

Oracle AS Wireless is designed to enable wireless devices such as cell phones, messaging devices/ pagers , and wireless Internet-connected laptops to connect to an application that provides content. The Oracle Application Server architecture includes a device/network gateway provider, an XML application framework, and an adapter that enables communication to and from the application leveraging a multichannel server.

Chapter 14 describes OracleAS Wireless and its various mobile components in detail.

2.6.3 Business Intelligence

The primary business intelligence (BI) components available in Oracle Application Server are OracleAS Discoverer and OracleAS Reports Services. Oracle Application Server also includes an OracleAS Personalization component that leverages data mining features to present web-site pages based on previously analyzed tendencies of visitors .

OracleAS Discoverer tools enabled for Internet access include Discoverer Plus and Discoverer Viewer:


Discoverer Plus

This tool is a full-featured ad hoc query and analysis tool. It is initiated using a downloaded Java applet. After the initial applet download, the applet resides in local cache.


Discoverer Viewer

This tool can view intelligence query results and charts generated by Discoverer Plus in a browser. It is servlet-based and leverages Discoverer Services.

Both tools take advantage of the fact that Oracle Application Server contains a data cache, which enables rapid data manipulation without the need to requery the back-end database. The database tier of the architecture contains Discoverer workbooks, the End User Layer, and, of course, the data.

The OracleAS Reports Services component lets you create high-quality printed and web-based reports. OracleAS Reports Services uses Java servlets (known as Java servers ) to receive requests and then direct the requests to a runtime engine that provides the requested functionality. You can configure the number of runtime engines for OracleAS Reports Servers initially started, the maximum number of engines that can be running at one time, and the idle time before an engine is shut down. Multiple OracleAS Reports Servers can provide load balancing, although not failover.

Chapter 9 describes OracleAS Reports Services in detail, and Chapter 12 describes OracleAS Discoverer and other business intelligence components.

2.6.4 OracleAS Forms Services

OracleAS Forms Services can build applications that provide an interactive graphical interface for data entry with support for data validation. As with OracleAS Reports Services, OracleAS Forms Services use Java servlets to receive requests and direct them to a runtime engine. Each user has a matching runtime process, which is also a Java servlet. As with OracleAS Reports Servers, you can have multiple OracleAS Forms Servers that can provide load balancing, although not failover.

Chapter 9 describes OracleAS Forms Services in detail.

   


Oracle Application Server 10g Essentials
Oracle Application Server 10g Essentials
ISBN: 0596006217
EAN: 2147483647
Year: 2004
Pages: 120

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