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VisiConnect Features
VisiConnect Features
Among the value-added features provided by VisiConnect as enhancements to the
Connectors standard are the following:
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VisiConnect Partition Service
Additional Classloading Support
Secure Password Credential Storage
Connection Leak Detection
Security Policy Processing of ra.xml Specifications
VisiConnect Partition Service
The Borland Partition with the VisiConnect service enabled is designed to support
development and deployment of J2EE applications which bundle Resource Adapters,
or standalone Resource Adapter components. The Borland Enterprise Server Partition
provides integrated VisiConnect services. Tools include a Deployment Descriptor
Editor (DDE) and a set of task wizards for packaging and deploying Resource Adapters
and their related descriptor files.
This provides a highly modular environment for running VisiConnect. The Borland
Enterprise Server provides a default VisiConnect Service in Partitions for deployment.
Additional Classloading Support
VisiConnect supports the loading of properties or classes that are specified in
ClassPath entry of the Resource Adapter's Manifest.mf file. The following is a
description of how you configure properties and classes that are in and used by a
Resource Adapter.
The Resource Adapter (RAR) archive file and the application component using it (for
example, an EJB jar) are contained in an Enterprise Application (EAR) archive. The
RAR requires resources such as Java properties that are stored in a JAR file, and that
JAR file is contained within the EAR file (not in the RAR itself).
You specify a reference to the RAR Java classes by adding a ClassPath= entry in the
RAR Manifest.mf file. You can also store the EJB Java classes in the same JAR file
that is contained within the EAR. This scenario provides a “support” JAR file that
contains Java classes for the components in the EAR that require them.
Secure Password Credential Storage
VisiConnect provides a standard method for Resource Adapter deployers to plug in
their specified authorization/authentication mechanism through secure password
credential storage.
This storage mechanism is used to map user roles (Borland Enterprise Server roles,
which may be associated with Borland Enterprise Server username and password
combinations or credentials) to resource roles (EIS roles, which may be associated
with EIS user name and password combinations or credentials).
Connection Leak Detection
VisiConnect provides two mechanisms for preventing connection leaks:
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Leveraging a garbage collector
Providing an idle timer for tracking the usage of connection objects
Chapter 26: VisiConnect overview 255