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Deepak Vohra

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Top Stories by Deepak Vohra

This tutorial discusses the simpleType and complexType XML Schema structures and their corresponding representations in an XML document. XML Schema is used as the basis of an XML document structure, and some of the XML technologies, such as JAXB, are based on XML Schema. Overview An XML Schema is an XML-based representation of the structure of an XML document. XML Schema supports data types and namespaces; a DTD does not. In this tutorial, the simpleType and complexType structures used to represent a XML document will be discussed. SimpleType Declaration SimpleTypes are custom data types used with element and attribute declarations. A simpleType is represented with a declaration. An element is used to constrain character data in a element or a attribute declaration. A simpleType is used to constrain data types only; a simpleType do... (more)

WebLogic Tutorial: "Integrating Apache Poi in WebLogic Server"

The Apache Jakarta POI project provides components for the access and generation of Excel documents. The POI HSSF API is used to generate Excel Workbooks and to add Excel spreadsheets to a workbook. An Excel spreadsheet consists of rows and cells. The layout and fonts of a spreadsheet are also set with the POI HSSF API. A database table is often required to be presented in an Excel spreadsheet. Also, a developer's requirement could be to store an Excel spreadsheet in a database table. The Apache POI HSSF project is an API to create an Excel spreadsheet. The data in the Excel spr... (more)

Transforming XML-to-XML or -Text or -HTML

The Extensible Stylesheet Language Transformations (XSLT) specification provides for morphing XML documents into other XML documents. An XML document can also be transformed into a format other than XML such as HTML or text. An XSLT processor is required for an XSLT transformation. Some of the commonly used XSLT processors include Xalan-Java, Oracle XSLT Processor for Java and the JAXP XSLT transformer. A stylesheet is used to transform an XML document. The elements of a stylesheet are in the XSLT namespace http://www.w3.org/1999/XSL/Transform. With XSLT an XML document may be c... (more)

JDJ Feature — Java API for XML Web Services (JAX-WS)

WebLogic Server 10 Technology Preview supports JEE 5. A feature of JEE 5 is the Java API for XML Web Services (JAX-WS) used to create Web Services and Web Service clients. WebLogic Server 10 provides the jwsc task to create the Web Service artifacts and the clientgen task to create the artifacts for Web Service clients. In this article we'll create an example JAX-WS 2.0 Web Service in WebLogic Server 10 Technology Preview. JAX-WS is an API to create Web applications and Web Services using the XML-based Web Services functionality. To create a Web Service first create a Service En... (more)

Hybrid Cloud Computing: The Future Trend in Cloud

Cloud computing has been a boon to conserving resources by providing a farm of servers that are concurrently used by multiple users. Cloud computing precludes the requirement for setting up per-user servers. In a recent InformationWeek survey of business technology professionals, most have indicated a preference for cloud computing for storage, archiving, and disaster recovery, for business applications, servers, raw computing power, dedicated data center space, databases, and specialized IT services such as security, management and compliance. Cloud computing may be public or ... (more)