Structure - how it fits together

xmlDOM is composed of three cooperating classes:

• XML parser that analyzes the input and provides the necessary data to a DOM builder, which is given as an argument when the parser instance is created.
• DOM builder that receives the necessary data, to be able to construct a DOM tree of nodes, from the parser, such as the start and end of an element or the name and value of attributes for an element.
• A class that allows the builder to build the DOM tree and provides access and navigating methods for ooRexx programs processing the created DOM.

A program that would interact with the DOM should do something akin to the following to create a workable situation:

      builder = .dom1Builder~new                     -- create the DOM builder
      parser = .xmlParser~new(builder)               -- create the XML parser
      xmlFile = "something.xml"                      -- a proper XML file
      xml = .stream~new(xmlFile)                     -- make it suppliable for the parser
      dom = parser~parseStream(xmlFile)              -- get the DOM from the parser
      document = dom~documentElement                 -- retrieve the document
      elements = document~getrElementsByTagName("*") -- get all elements in the DOM
      elementArray = elements~toOorexxArray          -- convert to ooRexx array
      ......
      ::requires 'xmlDOM.cls'
    

Generated on 30 Jul 2015 13:57:01 for xmlDOM for OOrexx by  0.0.1