Introduction to the Gateway
1-4 Oracle Database Gateway for WebSphere MQ Installation and User's Guide
Advantages of Using the Gateway
Using the gateway to access WebSphere MQ provides the following advantages:
■ Transactional support
The gateway and the Oracle database enable WebSphere MQ operations and
Oracle database updates to be performed in a coordinated fashion. Oracle
two-phase commit protection is extended to the WebSphere MQ environment
without any special programming.
■ Fast remote procedures
The remote procedures implemented by the gateway are optimized for efficient
processing of WebSphere MQ requests.
The remote procedures to the gateway and WebSphere MQ are an optimized
PL/SQL package that is precompiled in the gateway. Because there are no
additional software layers on the target system, overhead is minimized.
■ Location transparency
Client applications need not be on a specific operating system. For example, your
Oracle application can send WebSphere MQ messages to an application on
IBM MVS. If the receiving application is moved to a different platform, then you
do not need to change the platform of your Oracle application.
■ Flexible interface
Using the MIPs generated by the Visual Workbench, you can use the gateway to
interface with the existing procedural logic or to integrate new procedural logic
into an Oracle database environment.
■ Oracle database integration
The integration of the Oracle database with the gateway enables you to benefit
from existing and future Oracle features.
■ Wide selection of tools
The gateway supports any tool or application that supports PL/SQL. This
includes applications built with traditional Oracle tools, such as Oracle Developer,
or applications built for intranet or Internet environments supported by Oracle
Application Server 11g. The gateway also works with packaged Oracle
applications, such as Oracle Financials, and with many third-party tools, such as
Visual Basic, PowerBuilder, and Lotus Notes.
■ Security
The gateway is compatible with the WebSphere MQ security authorization
mechanism.
Gateway Architecture
Figure 1–1 shows the components of the gateway architecture.
Remote procedure call A programming call that invokes a program on a system in
response to a request from another system.
Oracle Visual Workbench An abbreviated term for the Oracle Visual Workbench for
Oracle Database Gateway for WebSphere MQ.
Term Description
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