This chapter explains the role of Netscape Application Server (NAS) within the multitier enterprise environment. In addition, the chapter summarizes the main product components that come with NAS.
The Multitiered Environment
Product Components
a client tier, represented by web browsers or rich clients (such as a Java application).
a server tier, represented by a web server (such as Netscape Enterprise Server) and an application server (such as Netscape Application Server).
a data tier, represented by relational databases or other back-end data sources.
When a request originates from a web browser, it is sent to the web server. Assuming the request requires application processing or data access, the web server forwards the request to Netscape Application Server (NAS).
When a request originates from a CORBA client, it is sent to NAS by way of an RMI/IIOP link. (An RMI/IIOP-based product is expected to ship after NAS 4.0.)
Programming APIs
System Services and Application Services
Sample Applications
NAS Administrator
NAS Deployment Manager
Netscape Directory Server
Java Servlet 2.1 API Specification
Enterprise JavaBeans 1.0 Specification
JavaServer Pages 0.92 Specification
JDBC 2.0 Core API Specification
JDBC 2.0 Standard Extensions Specification