By Carsten Ziegeler, Matthew Langham
Development XML purposes is the consultant to the Apache Cocoon venture. The e-book includes the a lot wanted documentation at the Cocoon undertaking, however it doesn't restrict itself to simply being a developer's instruction manual. The booklet motivates using XML and XML software program (in specific open resource software). It comprises every little thing a newbie must get going with Cocoon in addition to the unique info a developer must improve new and intriguing elements to increase the XML publishing framework. even if each one bankruptcy builds upon the former ones, the booklet is designed in order that the chapters is additionally learn as person courses to the themes they speak about. assorted "hands-on" examples are used to make the underlying options and applied sciences completely transparent to somebody beginning out with Cocoon. Chapters that element the author's adventure in development web functions are used to embed Cocoon into the "real international" and whole the image.
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Additional info for Cocoon: Building XML Applications
Named after a rare musical instrument, Xalan is the component that allows XML data to be processed with XSLT style sheets. The Xalan project originally started out as a software component written at Lotus (LotusXSL) and was then donated to the Apache Software Foundation in 1999. Xalan conforms to the JAXP standard, which deals with not only XML parsing but also with XML processing. The JAXP standard defines some basic interfaces to transform XML documents using style sheets. Xalan also provides an XPath processor that can be used without XSLT to access XML data based on queries.
On the other hand, we are also beginning to see vendors bring out XML databases, meaning that there is no direct mapping to the traditional table view of other databases. Databases that offer this type of support lend themselves to integration into XML middleware solutions, because they often allow XML concepts such as XPath to be used to access the data directly from the database. 52 Companies such as Microsoft and Oracle have extended their databases and application programming languages to provide for XML data.
2 shows how you can add multichannel publishing capabilities (using XML and XSL) to your existing application. This is exactly how our first WML application, written in ASP, worked (as we discussed in the first chapter). Using this concept (and the Microsoft versions of the XML parser and XSLT processor), we were able to extend a running solution and allow it to publish to a mobile phone or PDA. 2. Integrating multichannel publishing. 50 In our example, the request came into the web server by way of a WAP gateway.