The application server is the core of
PeopleSoft Pure Internet Architecture; it executes business
logic and issues SQL to the database server. The application
processing logic that ran on the client in previous releases
now runs on the application server. The application server
consists of numerous PeopleSoft services and server
processes that handle transaction requests. These include
requests to:
*Authenticate users.
*Build application pages.
*Save application pages.
*Run some PeopleCode.
*Execute SQL (prompts, page-specific SQL, validations, and so
forth).
The application server is responsible for maintaining the
SQL connection to the database for the browser requests and
the Windows development environment. PeopleSoft uses Tuxedo
to manage database transactions and Jolt, Tuxedo's
counterpart, to facilitate transaction requests issued from
the internet. Both Tuxedo and Jolt are products of BEA
Systems.
The Portal Processor executes as an application service of
the PeopleSoft application server. It executes with the
other application services, like the Component Processor,
Security Manager, and SQL Access Manager. Portal Processor
tasks include:
*Fetching content templates from the database.
*Fetching content references from the database portal
registry and caching them in the application server portal
registry.
*Processing personalizations.
*Interacting with other application services (lightweight
directory access protocol (LDAP), role-based security, and
so forth).
For PeopleTools 8.4x, PeopleSoft supports application
servers on Windows NT/2000 and UNIX operating systems from
Hewlett Packard, IBM, and Sun Microsystems.
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