org.dom4j (dom4j API)

Defines the XML Document Object Model in Java interfaces together with some helper classes.

Interface Summary
Interface	Description
Attribute	`Attribute` defines an XML attribute.
Branch	`Branch` interface defines the common behaviour for Nodes which can contain child nodes (content) such as XML elements and documents.
CDATA	`CDATA` defines an XML CDATA section.
CharacterData	`CharacterData` is a marker interface for character based nodes such as the `CDATA`,`Comment` and `Text` nodes.
Comment	`Comment` defines the behavior of an XML comment.
Document	`Document` defines an XML Document.
DocumentType	`DocumentType` defines an XML DOCTYPE declaration.
Element	`Element` interface defines an XML element.
ElementHandler	`ElementHandler` interface defines a handler of `Element` objects.
ElementPath	This interface is used by `ElementHandler`instances to retrieve information about the current path hierarchy they are to process.
Entity	`Entity` defines an XML entity.
Node	`Node` defines the polymorphic behavior for all XML nodes in a dom4j tree.
NodeFilter	`NodeFilter` defines the behavior for a filter or predicate which acts on a DOM4J Node.
ProcessingInstruction	`ProcessingInstruction` defines an XML processing instruction.
Text	`Text` defines an XML Text node.
Visitor	`Visitor` is used to implement the `Visitor` pattern in DOM4J.
XPath	`XPath` represents an XPath expression after it has been parsed from a String.

Class Summary
Class	Description
DocumentFactory	`DocumentFactory` is a collection of factory methods to allow easy custom building of DOM4J trees.
DocumentHelper	`DocumentHelper` is a collection of helper methods for using DOM4J.
Namespace	`Namespace` is a Flyweight Namespace that can be shared amongst nodes.
QName	`QName` represents a qualified name value of an XML element or attribute.
VisitorSupport	`VisitorSupport` is an abstract base class which is useful for implementation inheritence or when using anonymous inner classes to create simple `Visitor` implementations.

Exception Summary
Exception	Description
DocumentException	`DocumentException` is a nested Exception which may be thrown during the processing of a DOM4J document.
IllegalAddException	`IllegalAddException` is thrown when a node is added incorrectly to an `Element`
InvalidXPathException	`InvalidXPathException` is thrown when an invalid XPath expression is used to traverse an XML document
XPathException	`XPathException` is thrown when an exception occurs while evaluating an XPath expression, usually due to some function throwing an exception.