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GVB Subrahmanyam

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Top Stories by GVB Subrahmanyam

Java is hot. Just nine years old, it has become one of the leading development environments in the world. Millions of programmers and thousands of companies use it, and half of all IT managers expect to deploy J2EE applications this year. But Java's popularity hasn't necessarily made it easy for the growing population of Java code jockeys. Ever-shortening production cycles have kept the heat on programmers, who increasingly work in large teams to meet production milestones. And every day those teams come face-to-face with an immutable law of software development: the more code you write, the more bugs you'll get - bugs that cost time and sap quality and performance from applications. This article looks at performance tuning and optimization of memory usage of a J2EE application. Our setup uses the BEA WebLogic Application Server. We will consider the following: T... (more)

Cloud-Based Reference Architecture

During the past few years enterprise services have been leveraging cloud-based technologies for several reasons including scalability and automated provisioning capabilities [1, 2]. In a development / design environment, cloud platforms provide dynamic and repeatable processes for creating environments that help reduce lead times and provide cost-effective optimizing infrastructure apart from eliminating manual intervention and minimizing rework due to environment defects. In a deployment environment, the cloud leverages virtualization, distributed applications and grid-based a... (more)

Service Enablement of Enterprise Data through Mobile Devices

It's well known that in recent times that consumption of data or a service through mobile applications is increasing exponentially due to the increase in the mobile customer base and the increase in the number of mobile devices connected to various systems disproportionately(1). That means in most of the cases, consumers of mobile devices are increasing more than traditional desktop browser based service model of consumption. These end users use a large number of different types of devices starting from standalone desktops, laptops, and tablets to mobile devices. It is expected t... (more)

Migrating from WebLogic 6.1 to 8.1

BEA's name is synonymous with the application server. Most applications running on Unix in North America run on BEA's WebLogic server, particularly financial apps. The current stable WebLogic 8.1 version does a lot more than earlier versions. Migrating to new versions is always challenging and risky, but is done for efficiency and new capabilities, and to stay current with a vendor's products and support. Most applications developed on the WebLogic 6.1 used JDK 1.3 or earlier. A move from WebLogic 6.1 to 8.1 means making our applications compatible with JDK 1.4.1 or higher since... (more)

Developing a CICS-Based Web Service

Web services have opened opportunities to integrate the applications at an enterprise level irrespective of the technology they have been implemented in. IBM's CICS transaction server for z/OS v3.1 can support web services. It can help expose existing applications as web services or develop new functionality to invoke web services. One of the commonly used protocols for CICS web services is SOAP for CICS. It enables the communication of applications through XML. It supports as a service provider and service consumer independent of platform and language. SOAP for CICS enables CIC... (more)