## Package org.apache.xerces.impl

Interface Summary
ExternalSubsetResolver: This interface extends `XMLEntityResolver` providing a method to resolve external subsets for documents which do not explicitly provide one.

RevalidationHandler

DOM Revalidation handler adds additional functionality to XMLDocumentHandler

# INTERNAL:

XMLDocumentFragmentScannerImpl.Dispatcher: This interface defines an XML "event" dispatching model.
XMLEntityDescription: This interface describes the properties of entities--their physical location and their name.
XMLEntityHandler: The entity handler interface defines methods to report information about the start and end of entities.

Class Summary
Constants: Commonly used constants.
Version: This class defines the version number of the parser.
XML11DocumentScannerImpl: This class is responsible for scanning XML document structure and content.
XML11DTDScannerImpl: This class is responsible for scanning the declarations found in the internal and external subsets of a DTD in an XML document.
XML11EntityScanner: Implements the entity scanner methods in the context of XML 1.1.
XML11NamespaceBinder: This class performs namespace binding on the startElement and endElement method calls in accordance with Namespaces in XML 1.1.
XML11NSDocumentScannerImpl: The scanner acts as the source for the document information which is communicated to the document handler.
XMLDocumentFragmentScannerImpl: This class is responsible for scanning the structure and content of document fragments.
XMLDocumentFragmentScannerImpl.ElementStack: Element stack.
XMLDocumentScannerImpl: This class is responsible for scanning XML document structure and content.
XMLDTDScannerImpl: This class is responsible for scanning the declarations found in the internal and external subsets of a DTD in an XML document.
XMLEntityManager: The entity manager handles the registration of general and parameter entities; resolves entities; and starts entities.
XMLEntityManager.Entity: Entity information.
XMLEntityManager.ExternalEntity: External entity.
XMLEntityManager.InternalEntity: Internal entity.
XMLEntityScanner: Implements the entity scanner methods.
XMLErrorReporter: This class is a common element of all parser configurations and is used to report errors that occur.
XMLNamespaceBinder: This class performs namespace binding on the startElement and endElement method calls and passes all other methods through to the registered document handler.
XMLNSDocumentScannerImpl: The scanner acts as the source for the document information which is communicated to the document handler.
XMLScanner: This class is responsible for holding scanning methods common to scanning the XML document structure and content as well as the DTD structure and content.
XMLVersionDetector: This class scans the version of the document to determine which scanner to use: XML 1.1 or XML 1.0.

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