DOM and SAX built-in classes

The DOM and SAX APIs both contain a set of built-in classes.

The DOM API is composed of:

• The om.DomDocument class, that defines the interface to a DOM document. Instances of this class can be used to identify and manipulate an XML tree. DomNode object manipulation methods are provided by this class.
• The om.DomNode class, that defines the interface to an DOM node. Instances of this class can be used to identify and manipulate a branch of an XML tree. Child nodes and node attributes management methods are provided by this class.
• The om.NodeList class, to handle a list of DomNode objects.

The SAX API is composed of:

• The om.SaxAttributes class represents a set of element attributes. It is used with an om.XmlReader or an om.XmlWriter object.
• The om.XmlReader class, that is defined to read XML. The XML document processing is based on SAX events.
• The om.XmlWriter class, that is defined to write XML. The XML document processing is based on SAX events.
• The om.SaxDocumentHandler class, which provides an interface to implement a SAX driver using functions defined in a .4gl module loaded dynamically.