DOMImplementationLS contains the factory methods for creating Load and Save objects.
LSParserFilters provide applications the ability to examine nodes as they are being constructed while parsing.
LSResourceResolver provides a way for applications to redirect references to external resources.
LSSerializer provides an API for serializing (writing) a DOM document out into XML.
LSSerializerFilters provide applications the ability to examine nodes as they are being serialized and decide what nodes should be serialized or not.
LSException if the processing is stopped.