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XML & Related Technologies - Atul Kahate - Google Books


XML and related technologies by Atul Kahate ebook 68




XML has become the standard for all kinds of integration and deployment of applications, regardless of the technology platform. If you want to learn about XML and its related technologies in a comprehensive and practical way, then you should check out this book by Atul Kahate. In this article, we will give you an overview of the book's content, features, audience, and availability.




xml and related technologies by atul kahate ebook 68



What is XML and why is it important?




XML stands for eXtensible Markup Language. It is a simple, flexible, and powerful way of describing data using tags. Unlike HTML, which is used to display data on web pages, XML is used to store, exchange, and manipulate data across different systems. Some of the advantages of XML are:


  • It is human-readable and machine-readable.



  • It is platform-independent and language-independent.



  • It is extensible and customizable.



  • It supports namespaces and schemas.



  • It can be validated and transformed.



XML has many applications in various domains, such as web development, e-commerce, database management, document processing, configuration files, web services, RSS feeds, SOAP messages, AJAX requests, etc.


XML syntaxes and rules




XML documents consist of elements, attributes, text, comments, processing instructions, entity references, CDATA sections, etc. Each element has a start tag, an end tag, and optional content. Each attribute has a name and a value. The basic syntax rules for XML are:


  • The document must have a root element that contains all other elements.



  • The elements must be properly nested within each other.



  • The tags must be case-sensitive.



  • The attribute values must be enclosed in quotes.



  • The document must be well-formed (i.e., it must follow the syntax rules).



An example of a well-formed XML document is:


<?xml version="1.0" encoding="UTF-8"?> <book> <title>XML & Related Technologies</title> <author>Atul Kahate</author> <publisher>Pearson Education India</publisher> <year>2009</year> <pages>498</pages> </book>


Document type definitions (DTDs) and XML schemas




A document type definition (DTD) is a set of rules that defines the structure and content of an XML document. It specifies the elements, attributes, entities, and notations that are allowed in the document. A DTD can be declared either internally (within the XML document) or externally (in a separate file). A DTD can be referenced using a document type declaration (DOCTYPE) at the beginning of the XML document. An example of a DOCTYPE declaration is:


<!DOCTYPE book SYSTEM "book.dtd">


An XML schema is an alternative way of defining the structure and content of an XML document. It is written in XML syntax and supports more data types, constraints, and namespaces than DTDs. An XML schema can be declared using an XML schema definition (XSD) file. An XSD file can be referenced using an XML schema instance (XSI) attribute in the root element of the XML document. An example of an XSI attribute is:


<book xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="book.xsd">


The main advantages of XML schemas over DTDs are:


  • They are more expressive and precise.



  • They support namespaces and schemas.



  • They can be validated using XML parsers.



  • They can be transformed using XSLT.



Cascading style sheets (CSS) and extensible stylesheet language (XSL)




Cascading style sheets (CSS) are used to style HTML and XML documents. They define how the elements and attributes are displayed on web pages or other media. CSS can be applied to XML documents using either inline styles (within the element tags), embedded styles (within the <style> element), or external styles (in a separate file). An example of an external CSS file is:


book font-family: Arial, sans-serif; font-size: 14px; title font-weight: bold; color: blue; author font-style: italic; color: green;


Extensible stylesheet language (XSL) is used to transform XML documents into other formats, such as HTML, PDF, TXT, etc. XSL consists of two parts: XSL transformations (XSLT) and XSL formatting objects (XSL-FO). XSLT is a language that defines how to transform one XML document into another using templates, variables, expressions, functions, etc. XSL-FO is a language that defines how to format and layout the transformed XML document using objects, properties, areas, etc. XSL can be applied to XML documents using either an <xsl:stylesheet> element or an <xsl:transform> element. An example of an <xsl:stylesheet> element is:


<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:template match="/"> <html> <head> <title>Book Details</title> </head> <body> <h1><xsl:value-of select="book/title"/></h1> <p><xsl:value-of select="book/author"/></p> <p><xsl:value-of select="book/publisher"/></p> <p><xsl:value-of select="book/year"/></p> <p><xsl:value-of select="book/pages"/></p> </body> </html> </xsl:template> </xsl:stylesheet>


XML and Java




Java is a popular programming language that can be used to parse and process XML documents. Java provides several APIs for working with XML, such as:


XML (SAX), which is an event-based parser that reads XML documents sequentially and invokes callbacks for each element, attribute, text, etc.


  • The Document Object Model (DOM), which is a tree-based parser that loads the entire XML document into memory and allows random access and manipulation of the nodes.



  • The Java API for XML Processing (JAXP), which is a standard interface that supports both SAX and DOM parsers and allows switching between different implementations.



  • The Java API for XML Binding (JAXB), which is a framework that maps XML elements and attributes to Java classes and objects and vice versa.



  • The Streaming API for XML (StAX), which is a pull-based parser that allows the application to control the parsing process and retrieve the XML events as needed.



Java also provides other APIs for working with XML-related technologies, such as XSLT, XSL-FO, XPath, XQuery, XPointer, etc.


XML and ASP.NET




ASP.NET is a web development framework that can be used to create dynamic web applications using XML and other technologies. ASP.NET supports XML in various ways, such as:


  • The XmlDataSource control, which is a data source control that can bind to an XML document or file and provide data to other controls, such as GridView, DetailsView, etc.



  • The Xml control, which is a web server control that can display an XML document or file on a web page using a specified XSLT file or style sheet.



  • The XmlDocument class, which is a DOM-based class that can load, validate, navigate, modify, and save an XML document in memory.



  • The XmlReader class, which is a SAX-based class that can read an XML document or stream sequentially and provide access to the XML nodes and values.



  • The XmlWriter class, which is a class that can write an XML document or stream sequentially using methods and properties that correspond to the XML syntax.



ASP.NET also provides other classes and controls for working with XML-related technologies, such as XslCompiledTransform, XmlSchema, XmlResolver, XmlValidatingReader, etc.


Web services and AJAX




Web services are software components that can be accessed over the internet using standard protocols and formats. They provide a way of interoperability between different applications and platforms. Web services can be implemented using various technologies, such as SOAP, REST, WSDL, UDDI, etc. XML is the common format used to represent the data and messages exchanged between web services and clients.


AJAX stands for Asynchronous JavaScript and XML. It is a technique that allows web pages to communicate with web servers without reloading the entire page. It uses JavaScript to send and receive data from the server using XMLHttpRequest objects. The data can be in various formats, such as XML, JSON, HTML, etc. AJAX can improve the performance and usability of web applications by providing dynamic and interactive features.


XML security




XML security refers to the methods and techniques of protecting the confidentiality, integrity, and authenticity of XML data and messages. Some of the common challenges and solutions of XML security are:


  • XML encryption: It is the process of encrypting the content or parts of an XML document using symmetric or asymmetric key cryptography. It can protect the data from unauthorized access or modification. The W3C standard for XML encryption defines the syntax and semantics of encrypting and decrypting XML data.



  • XML digital signature: It is the process of signing the content or parts of an XML document using public key cryptography. It can verify the identity of the sender and the integrity of the data. The W3C standard for XML digital signature defines the syntax and semantics of signing and verifying XML data.



  • XML access control: It is the process of granting or denying access to specific elements or attributes of an XML document based on predefined policies and rules. It can enforce the authorization and privacy of the data. The OASIS standard for eXtensible Access Control Markup Language (XACML) defines a language for expressing access control policies for XML data.



What are the main features of the book?




The book "XML & Related Technologies" by Atul Kahate is a comprehensive and practical guide to learning about XML and its related technologies. Some of the main features of the book are:


  • It covers all the aspects of dealing with XML, both from a conceptual as well as from a practical point of view.



  • It explains the concepts and techniques of XML and its related technologies using simple and clear language, examples, diagrams, and tables.



  • It provides numerous exercises, questions, and projects at the end of each chapter to test and reinforce the understanding of the topics.



  • It includes appendices that cover miscellaneous topics, such as XML editors, XML parsers, XML validators, XML tools, etc.



  • It is suitable for both beginners and advanced learners of XML and its related technologies.



Who is the target audience of the book?




The book "XML & Related Technologies" by Atul Kahate is designed for anyone who wants to learn about XML and its related technologies. The target audience of the book includes:


  • Students and instructors of computer science, information technology, engineering, and other related disciplines.



  • Professionals and practitioners of web development, software development, database management, e-commerce, web services, and other related fields.



  • Hobbyists and enthusiasts who want to explore the world of XML and its related technologies.



How to get the book?




The book "XML & Related Technologies" by Atul Kahate is available in both print and ebook formats. You can purchase or download the ebook version of the book from various online platforms, such as Google Books, Google Play, Amazon Kindle, etc. The ebook version of the book has 68 chapters and 528 pages. The ISBN numbers of the ebook version are 8131742091 and 9788131742099. The price of the ebook version varies depending on the platform and region.


Conclusion




In conclusion, XML is a powerful and versatile language that can be used for various purposes and applications. If you want to master XML and its related technologies, then you should read this book by Atul Kahate. It will provide you with a comprehensive and practical knowledge of XML and its related technologies. You will learn how to create, validate, style, transform, process, integrate, secure, and exchange XML data using various technologies and tools. You will also get to practice your skills and test your understanding through exercises, questions, and projects. This book is a must-read for anyone who wants to learn about XML and its related technologies.


FAQs




  • What are the prerequisites for reading this book?



You should have a basic knowledge of HTML and web development. You should also have some familiarity with programming languages, such as Java or C#.


  • What are the benefits of reading this book?



You will gain a comprehensive and practical knowledge of XML and its related technologies. You will be able to create, validate, style, transform, process, integrate, secure, and exchange XML data using various technologies and tools. You will also improve your skills and understanding through exercises, questions, and projects.


  • How long does it take to read this book?



It depends on your reading speed and level of interest. However, you can expect to spend about 20 to 30 hours to read this book thoroughly.


  • Where can I find more resources on XML and its related technologies?



You can find more resources on XML and its related technologies from various online sources, such as W3Schools (https://www.w3schools.com/xml/), W3C (https://www.w3.org/XML/), Tutorialspoint (https://www.tutorialspoint.com/xml/), etc.


  • How can I contact the author of this book?



You can contact the author of this book by sending an email to atulkahate@gmail.com or visiting his website at http://www.atulkahate.com/.


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