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Tilak Mitra

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Top Stories by Tilak Mitra

When the programming model shifted from the traditional procedural model to that of object-orientation, a major paradigm shift occurred in the world of IT development. The focus was on encapsulating the state and behavior of entities and calling that encapsulation a class. Instances of a class were called objects, which occupied some space in the memory. Object orientation (OO) brought in concepts of inheritance, encapsulation, and polymorphism that could be applied to define relationships between classes. With the prevalence of the use of OO in the programming world, developers and architects started noticing some patterns that can be applied to the usage of OO principles to solve similar types of problems. The patterns depicted the deconstruction of a problem into mul... (more)

SOA Book Excerpt: Service Oriented Modeling and Architecture - Part 2

Service Oriented Modeling and Architecture (SOMA) is a modeling and design technique developed by IBM that provides prescriptive steps for how to enable target business processes by defining and developing a service-based IT solution. SOMA provides the communication link between the business requirements and the IT solution. It provides guidance on how to use business model and informati... (more)

Using JAXB in Enterprise J2EE Applications

It has been well proven over the past few years that the best form of information exchange (in a typical B2B and B2C environment) is through XML. There are various XML-based standards (schema) for both the horizontal and vertical market sectors and there are ongoing efforts to move toward a standardized format in the various industry sectors. With the proliferation of an XML-based informa... (more)

Using the Search Capabilities of WebSphere Portal v5 Part 2

The first article (Vol. 3, issue 9) in this series on WebSphere Portal Servers (WPS) search capabilities introduced you to some basic capabilities of the native search features of WPS. In this article we will use a hypothetical scenario in which we configure a portal search portlet with user-defined categories. We will create user-defined categories in which the search results will be con... (more)

Using JAXB in J2EE-Based Enterprise Applications

In Part 2 of this two-part series (Part 1 appeared in Vol. 9, issue 4) I shall try to construct an XML Schema, take you through the steps required to convert an XML document into its corresponding Java classes and interfaces, and also show how to generate an XML document (by using the generated Java classes and interfaces) from a Java object tree, in a programmatic fashion. A Brief Recap ... (more)