An XML document is “well formed” if it meets a number of critieria. This post covers those criteria in detail with examples.
Structured XML, irrespective of its purpose, is designed to carry data for a variety of purposes. The XML 1.0 standard defines 5 predefined entities – aka special characters.
A newly created, in-memory, XML document is sometimes necessary for ad-hoc data manipulation and / or document generation.
There are a number of methods to read an XML attribute value. We present two common methods here: Locate and read an element value using the XML DOM; or Locate and read an element using XPATH expressions.
Integration between disparate systems sometimes require a mapping exercise between the protocol XML and the POJO you are using for data storage processing. Java defines a comprehensive binding framework – JAXB – which can be used for this task.
XML defines various node relationship types: parent, child, sibling, ancestor and descendent. Understanding how these relationships function is a prerequisite of document manipulation and queries(i.e. XPath)
There are a number of methods to read an XML element value. We present two common methods here: Locate and read an element value using the XML DOM; or Locate and read an element using XPATH expressions.
The World Wide Web Consortium (W3C) defines XML as follows: The Extensible Markup Language (XML) is a simple text-based format for representing structured information.
Reading / Opening an XML document is an essential skill for XML processing. The method of reading an XML document depends on the technical requirements (document source, code purpose, etc.) and constraints (processing speed, memory footprint, etc.).