## org.apache.xerces.impl
Class XMLDocumentFragmentScannerImpl

    java.lang.Object
      |
      +--org.apache.xerces.impl.XMLScanner
            |
            +--org.apache.xerces.impl.XMLDocumentFragmentScannerImpl

All Implemented Interfaces:
  org.apache.xerces.xni.parser.XMLComponent, org.apache.xerces.xni.parser.XMLDocumentScanner, org.apache.xerces.xni.parser.XMLDocumentSource, XMLEntityHandler

Direct Known Subclasses:
  XMLDocumentScannerImpl

public class XMLDocumentFragmentScannerImpl
extends XMLScanner
implements org.apache.xerces.xni.parser.XMLDocumentScanner, org.apache.xerces.xni.parser.XMLComponent, XMLEntityHandler

This class is responsible for scanning the structure and content of document fragments. The scanner acts as the source for the document information which is communicated to the document handler.

This component requires the following features and properties from the component manager that uses it:

- http://xml.org/sax/features/validation
- http://apache.org/xml/features/scanner/notify-char-refs
- http://apache.org/xml/features/scanner/notify-builtin-refs
- http://apache.org/xml/properties/internal/symbol-table
- http://apache.org/xml/properties/internal/error-reporter
- http://apache.org/xml/properties/internal/entity-manager

# INTERNAL:

  Usage of this class is not supported. It may be altered or removed at any time.

Version:
  $Id: XMLDocumentFragmentScannerImpl.java 572055 2007-09-02 17:55:43Z mrglavas $
Author:
  Glenn Marcy, IBM, Andy Clark, IBM, Arnaud Le Hors, IBM, Eric Ye, IBM

Inner Class Summary
`protected static interface` `XMLDocumentFragmentScannerImpl.Dispatcher` This interface defines an XML "event" dispatching model.
`protected static class` `XMLDocumentFragmentScannerImpl.ElementStack` Element stack.
`protected class` `XMLDocumentFragmentScannerImpl.FragmentContentDispatcher` Dispatcher to handle content scanning.

Field Summary
`protected static boolean` `DEBUG_CONTENT_SCANNING` Debug content dispatcher scanning.
`protected static java.lang.String` `ENTITY_RESOLVER` Property identifier: entity resolver.
`protected org.apache.xerces.xni.QName` `fAttributeQName` Attribute QName.
`protected XMLAttributesImpl` `fAttributes` Element attributes.
`protected XMLDocumentFragmentScannerImpl.Dispatcher` `fContentDispatcher` Content dispatcher.
`protected org.apache.xerces.xni.QName` `fCurrentElement` Current element.
`protected XMLDocumentFragmentScannerImpl.Dispatcher` `fDispatcher` Active dispatcher.
`protected org.apache.xerces.xni.XMLDocumentHandler` `fDocumentHandler` Document handler.
`protected org.apache.xerces.xni.QName` `fElementQName` Element QName.
`protected XMLDocumentFragmentScannerImpl.ElementStack` `fElementStack` Element stack.
`protected int[]` `fEntityStack` Entity stack.
`protected ExternalSubsetResolver` `fExternalSubsetResolver` External subset resolver.
`protected boolean` `fHasExternalDTD` has external dtd
`protected boolean` `fInScanContent` SubScanner state: inside scanContent method.
`protected boolean` `fIsEntityDeclaredVC` True if [Entity Declared] is a VC; false if it is a WFC.
`protected int` `fMarkupDepth` Markup depth.
`protected boolean` `fNotifyBuiltInRefs` Notify built-in references.
`protected int` `fScannerState` Scanner state.
`protected boolean` `fStandalone` Standalone.
`protected org.apache.xerces.xni.XMLString` `fTempString` String.
`protected org.apache.xerces.xni.XMLString` `fTempString2` String.
`protected static java.lang.String` `NAMESPACES` Feature identifier: namespaces.
`protected static java.lang.String` `NOTIFY_BUILTIN_REFS` Feature identifier: notify built-in refereces.
`protected static int` `SCANNER_STATE_CDATA` Scanner state: CDATA section.
`protected static int` `SCANNER_STATE_COMMENT` Scanner state: comment.
`protected static int` `SCANNER_STATE_CONTENT` Scanner state: content.
`protected static int` `SCANNER_STATE_DOCTYPE` Scanner state: DOCTYPE.
`protected static int` `SCANNER_STATE_END_OF_INPUT` Scanner state: end of input.
`protected static int` `SCANNER_STATE_PI` Scanner state: processing instruction.
`protected static int` `SCANNER_STATE_REFERENCE` Scanner state: reference.
`protected static int` `SCANNER_STATE_ROOT_ELEMENT` Scanner state: root element.
`protected static int` `SCANNER_STATE_START_OF_MARKUP` Scanner state: start of markup.
`protected static int` `SCANNER_STATE_TERMINATED` Scanner state: terminated.
`protected static int` `SCANNER_STATE_TEXT_DECL` Scanner state: Text declaration.

Fields inherited from class org.apache.xerces.impl.XMLScanner

`DEBUG_ATTR_NORMALIZATION, ENTITY_MANAGER, ERROR_REPORTER, fAmpSymbol, fAposSymbol, fCharRefLiteral, fEncodingSymbol, fEntityDepth, fEntityManager, fEntityScanner, fErrorReporter, fGtSymbol, fLtSymbol, fNamespaces, fNotifyCharRefs, fParserSettings, fQuotSymbol, fReportEntity, fResourceIdentifier, fScanningAttribute, fStandaloneSymbol, fSymbolTable, fValidation, fVersionSymbol, NOTIFY_CHAR_REFS, PARSER_SETTINGS, SYMBOL_TABLE, VALIDATION`

Constructor Summary
`XMLDocumentFragmentScannerImpl()` Default constructor.

Method Summary
`protected XMLDocumentFragmentScannerImpl.Dispatcher` `createContentDispatcher()` Creates a content dispatcher.
`void` `endEntity(java.lang.String name, org.apache.xerces.xni.Augmentations augs)` This method notifies the end of an entity.
`java.lang.String` `getDispatcherName(XMLDocumentFragmentScannerImpl.Dispatcher dispatcher)` Returns the dispatcher name.
`org.apache.xerces.xni.XMLDocumentHandler` `getDocumentHandler()` Returns the document handler
`java.lang.Boolean` `getFeatureDefault(java.lang.String featureId)` Returns the default state for a feature, or null if this component does not want to report a default value for this feature.
`java.lang.Object` `getPropertyDefault(java.lang.String propertyId)` Returns the default state for a property, or null if this component does not want to report a default value for this property.
`java.lang.String[]` `getRecognizedFeatures()` Returns a list of feature identifiers that are recognized by this component.
`java.lang.String[]` `getRecognizedProperties()` Returns a list of property identifiers that are recognized by this component.
`protected java.lang.String` `getScannerStateName(int state)` Returns the scanner state name.
`protected int` `handleEndElement(org.apache.xerces.xni.QName element, boolean isEmpty)` Handles the end element.
`void` `reset(org.apache.xerces.xni.parser.XMLComponentManager componentManager)` Resets the component.
`protected void` `scanAttribute(org.apache.xerces.xni.XMLAttributes attributes)` Scans an attribute.
`protected boolean` `scanCDATASection(boolean complete)` Scans a CDATA section.
`protected void` `scanCharReference()` Scans a character reference.
`protected void` `scanComment()` Scans a comment.
`protected int` `scanContent()` Scans element content.
`boolean` `scanDocument(boolean complete)` Scans a document.
`protected int` `scanEndElement()` Scans an end element.
`protected void` `scanEntityReference()` Scans an entity reference.
`protected void` `scanPIData(java.lang.String target, org.apache.xerces.xni.XMLString data)` Scans a processing data.
`protected boolean` `scanStartElement()` Scans a start element.
`protected boolean` `scanStartElementAfterName()` Scans the remainder of a start or empty tag after the element name.
`protected void` `scanStartElementName()` Scans the name of an element in a start or empty tag.
`protected void` `scanXMLDeclOrTextDecl(boolean scanningTextDecl)` Scans an XML or text declaration.
`protected void` `setDispatcher(XMLDocumentFragmentScannerImpl.Dispatcher dispatcher)` Sets the dispatcher.
`void` `setDocumentHandler(org.apache.xerces.xni.XMLDocumentHandler documentHandler)` setDocumentHandler
`void` `setFeature(java.lang.String featureId, boolean state)` Sets the state of a feature.
`void` `setInputSource(org.apache.xerces.xni.parser.XMLInputSource inputSource)` Sets the input source.
`void` `setProperty(java.lang.String propertyId, java.lang.Object value)` Sets the value of a property.
`protected void` `setScannerState(int state)` Sets the scanner state.
`void` `startEntity(java.lang.String name, org.apache.xerces.xni.XMLResourceIdentifier identifier, java.lang.String encoding, org.apache.xerces.xni.Augmentations augs)` This method notifies of the start of an entity.

Methods inherited from class org.apache.xerces.impl.XMLScanner

`getFeature, getVersionNotSupportedKey, isInvalid, isInvalidLiteral, isUnchangedByNormalization, isValidNameChar, isValidNameStartChar, isValidNameStartHighSurrogate, isValidNCName, normalizeWhitespace, normalizeWhitespace, reportFatalError, reset, scanAttributeValue, scanCharReferenceValue, scanComment, scanExternalID, scanPI, scanPseudoAttribute, scanPubidLiteral, scanSurrogates, scanXMLDeclOrTextDecl, versionSupported`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### SCANNER_STATE_START_OF_MARKUP

    protected static final int SCANNER_STATE_START_OF_MARKUP

  Scanner state: start of markup.

### SCANNER_STATE_COMMENT

    protected static final int SCANNER_STATE_COMMENT

  Scanner state: comment.

### SCANNER_STATE_PI

    protected static final int SCANNER_STATE_PI

  Scanner state: processing instruction.

### SCANNER_STATE_DOCTYPE

    protected static final int SCANNER_STATE_DOCTYPE

  Scanner state: DOCTYPE.

### SCANNER_STATE_ROOT_ELEMENT

    protected static final int SCANNER_STATE_ROOT_ELEMENT

  Scanner state: root element.

### SCANNER_STATE_CONTENT

    protected static final int SCANNER_STATE_CONTENT

  Scanner state: content.

### SCANNER_STATE_REFERENCE

    protected static final int SCANNER_STATE_REFERENCE

  Scanner state: reference.

### SCANNER_STATE_END_OF_INPUT

    protected static final int SCANNER_STATE_END_OF_INPUT

  Scanner state: end of input.

### SCANNER_STATE_TERMINATED

    protected static final int SCANNER_STATE_TERMINATED

  Scanner state: terminated.

### SCANNER_STATE_CDATA

    protected static final int SCANNER_STATE_CDATA

  Scanner state: CDATA section.

### SCANNER_STATE_TEXT_DECL

    protected static final int SCANNER_STATE_TEXT_DECL

  Scanner state: Text declaration.

### NAMESPACES

    protected static final java.lang.String NAMESPACES

  Feature identifier: namespaces.

### NOTIFY_BUILTIN_REFS

    protected static final java.lang.String NOTIFY_BUILTIN_REFS

  Feature identifier: notify built-in refereces.

### ENTITY_RESOLVER

    protected static final java.lang.String ENTITY_RESOLVER

  Property identifier: entity resolver.

### DEBUG_CONTENT_SCANNING

    protected static final boolean DEBUG_CONTENT_SCANNING

  Debug content dispatcher scanning.

### fDocumentHandler

    protected org.apache.xerces.xni.XMLDocumentHandler fDocumentHandler

  Document handler.

### fEntityStack

    protected int[] fEntityStack

  Entity stack.

### fMarkupDepth

    protected int fMarkupDepth

  Markup depth.

### fScannerState

    protected int fScannerState

  Scanner state.

### fInScanContent

    protected boolean fInScanContent

  SubScanner state: inside scanContent method.

### fHasExternalDTD

    protected boolean fHasExternalDTD

  has external dtd

### fStandalone

    protected boolean fStandalone

  Standalone.

### fIsEntityDeclaredVC

    protected boolean fIsEntityDeclaredVC

  True if [Entity Declared] is a VC; false if it is a WFC.

### fExternalSubsetResolver

    protected ExternalSubsetResolver fExternalSubsetResolver

  External subset resolver.

### fCurrentElement

    protected org.apache.xerces.xni.QName fCurrentElement

  Current element.

### fElementStack

    protected final XMLDocumentFragmentScannerImpl.ElementStack fElementStack

  Element stack.

### fNotifyBuiltInRefs

    protected boolean fNotifyBuiltInRefs

  Notify built-in references.

### fDispatcher

    protected XMLDocumentFragmentScannerImpl.Dispatcher fDispatcher

  Active dispatcher.

### fContentDispatcher

    protected final XMLDocumentFragmentScannerImpl.Dispatcher fContentDispatcher

  Content dispatcher.

### fElementQName

    protected final org.apache.xerces.xni.QName fElementQName

  Element QName.

### fAttributeQName

    protected final org.apache.xerces.xni.QName fAttributeQName

  Attribute QName.

### fAttributes

    protected final XMLAttributesImpl fAttributes

  Element attributes.

### fTempString

    protected final org.apache.xerces.xni.XMLString fTempString

  String.

### fTempString2

    protected final org.apache.xerces.xni.XMLString fTempString2

  String.

Constructor Detail

### XMLDocumentFragmentScannerImpl

    public XMLDocumentFragmentScannerImpl()

  Default constructor.

Method Detail

### setInputSource

    public void setInputSource(org.apache.xerces.xni.parser.XMLInputSource inputSource)
                        throws java.io.IOException

  Sets the input source.
  Specified by:
    `setInputSource` in interface `org.apache.xerces.xni.parser.XMLDocumentScanner`
  Parameters:
    `inputSource` - The input source.
  Throws:
    `java.io.IOException` - Thrown on i/o error.

### scanDocument

    public boolean scanDocument(boolean complete)
                         throws java.io.IOException,
                                org.apache.xerces.xni.XNIException

  Scans a document.
  Specified by:
    `scanDocument` in interface `org.apache.xerces.xni.parser.XMLDocumentScanner`
  Parameters:
    `complete` - True if the scanner should scan the document completely, pushing all events to the registered document handler. A value of false indicates that that the scanner should only scan the next portion of the document and return. A scanner instance is permitted to completely scan a document if it does not support this "pull" scanning model.
  Returns:
    True if there is more to scan, false otherwise.

### reset

    public void reset(org.apache.xerces.xni.parser.XMLComponentManager componentManager)
               throws org.apache.xerces.xni.parser.XMLConfigurationException

  Resets the component. The component can query the component manager about any features and properties that affect the operation of the component.
  Specified by:
    `reset` in interface `org.apache.xerces.xni.parser.XMLComponent`
  Overrides:
    `reset` in class `XMLScanner`
  Parameters:
    `componentManager` - The component manager.
  Throws:
    `SAXException` - Thrown by component on initialization error. For example, if a feature or property is required for the operation of the component, the component manager may throw a SAXNotRecognizedException or a SAXNotSupportedException.

### getRecognizedFeatures

    public java.lang.String[] getRecognizedFeatures()

  Returns a list of feature identifiers that are recognized by this component. This method may return null if no features are recognized by this component.
  Specified by:
    `getRecognizedFeatures` in interface `org.apache.xerces.xni.parser.XMLComponent`

### setFeature

    public void setFeature(java.lang.String featureId,
                           boolean state)
                    throws org.apache.xerces.xni.parser.XMLConfigurationException

  Sets the state of a feature. This method is called by the component manager any time after reset when a feature changes state.

  Note: Components should silently ignore features that do not affect the operation of the component.

  Specified by:
    `setFeature` in interface `org.apache.xerces.xni.parser.XMLComponent`
  Overrides:
    `setFeature` in class `XMLScanner`
  Parameters:
    `featureId` - The feature identifier.
    `state` - The state of the feature.
  Throws:
    `SAXNotRecognizedException` - The component should not throw this exception.
    `SAXNotSupportedException` - The component should not throw this exception.

### getRecognizedProperties

    public java.lang.String[] getRecognizedProperties()

  Returns a list of property identifiers that are recognized by this component. This method may return null if no properties are recognized by this component.
  Specified by:
    `getRecognizedProperties` in interface `org.apache.xerces.xni.parser.XMLComponent`

### setProperty

    public void setProperty(java.lang.String propertyId,
                            java.lang.Object value)
                     throws org.apache.xerces.xni.parser.XMLConfigurationException

  Sets the value of a property. This method is called by the component manager any time after reset when a property changes value.

  Note: Components should silently ignore properties that do not affect the operation of the component.

  Specified by:
    `setProperty` in interface `org.apache.xerces.xni.parser.XMLComponent`
  Overrides:
    `setProperty` in class `XMLScanner`
  Parameters:
    `propertyId` - The property identifier.
    `value` - The value of the property.
  Throws:
    `SAXNotRecognizedException` - The component should not throw this exception.
    `SAXNotSupportedException` - The component should not throw this exception.

### getFeatureDefault

    public java.lang.Boolean getFeatureDefault(java.lang.String featureId)

  Returns the default state for a feature, or null if this component does not want to report a default value for this feature.
  Specified by:
    `getFeatureDefault` in interface `org.apache.xerces.xni.parser.XMLComponent`
  Parameters:
    `featureId` - The feature identifier.
  Since:
    Xerces 2.2.0

### getPropertyDefault

    public java.lang.Object getPropertyDefault(java.lang.String propertyId)

  Returns the default state for a property, or null if this component does not want to report a default value for this property.
  Specified by:
    `getPropertyDefault` in interface `org.apache.xerces.xni.parser.XMLComponent`
  Parameters:
    `propertyId` - The property identifier.
  Since:
    Xerces 2.2.0

### setDocumentHandler

    public void setDocumentHandler(org.apache.xerces.xni.XMLDocumentHandler documentHandler)

  setDocumentHandler
  Specified by:
    `setDocumentHandler` in interface `org.apache.xerces.xni.parser.XMLDocumentSource`
  Parameters:
    `documentHandler` -

### getDocumentHandler

    public org.apache.xerces.xni.XMLDocumentHandler getDocumentHandler()

  Returns the document handler
  Specified by:
    `getDocumentHandler` in interface `org.apache.xerces.xni.parser.XMLDocumentSource`

### startEntity

    public void startEntity(java.lang.String name,
                            org.apache.xerces.xni.XMLResourceIdentifier identifier,
                            java.lang.String encoding,
                            org.apache.xerces.xni.Augmentations augs)
                     throws org.apache.xerces.xni.XNIException

  This method notifies of the start of an entity. The DTD has the pseudo-name of "[dtd]" parameter entity names start with '%'; and general entities are just specified by their name.
  Specified by:
    `startEntity` in interface `XMLEntityHandler`
  Overrides:
    `startEntity` in class `XMLScanner`
  Parameters:
    `name` - The name of the entity.
    `identifier` - The resource identifier.
    `encoding` - The auto-detected IANA encoding name of the entity stream. This value will be null in those situations where the entity encoding is not auto-detected (e.g. internal entities or a document entity that is parsed from a java.io.Reader).
    `augs` - Additional information that may include infoset augmentations
  Throws:
    `org.apache.xerces.xni.XNIException` - Thrown by handler to signal an error.

### endEntity

    public void endEntity(java.lang.String name,
                          org.apache.xerces.xni.Augmentations augs)
                   throws org.apache.xerces.xni.XNIException

  This method notifies the end of an entity. The DTD has the pseudo-name of "[dtd]" parameter entity names start with '%'; and general entities are just specified by their name.
  Specified by:
    `endEntity` in interface `XMLEntityHandler`
  Overrides:
    `endEntity` in class `XMLScanner`
  Parameters:
    `name` - The name of the entity.
    `augs` - Additional information that may include infoset augmentations
  Throws:
    `org.apache.xerces.xni.XNIException` - Thrown by handler to signal an error.

### createContentDispatcher

    protected XMLDocumentFragmentScannerImpl.Dispatcher createContentDispatcher()

  Creates a content dispatcher.

### scanXMLDeclOrTextDecl

    protected void scanXMLDeclOrTextDecl(boolean scanningTextDecl)
                                  throws java.io.IOException,
                                         org.apache.xerces.xni.XNIException

  Scans an XML or text declaration.

       [23] XMLDecl ::= '<?xml' VersionInfo EncodingDecl? SDDecl? S? '?>'
       [24] VersionInfo ::= S 'version' Eq (' VersionNum ' | " VersionNum ")
       [80] EncodingDecl ::= S 'encoding' Eq ('"' EncName '"' |  "'" EncName "'" )
       [81] EncName ::= [A-Za-z] ([A-Za-z0-9._] | '-')*
       [32] SDDecl ::= S 'standalone' Eq (("'" ('yes' | 'no') "'")
                       | ('"' ('yes' | 'no') '"'))

       [77] TextDecl ::= '<?xml' VersionInfo? EncodingDecl S? '?>'

  Parameters:
    `scanningTextDecl` - True if a text declaration is to be scanned instead of an XML declaration.

### scanPIData

    protected void scanPIData(java.lang.String target,
                              org.apache.xerces.xni.XMLString data)
                       throws java.io.IOException,
                              org.apache.xerces.xni.XNIException

  Scans a processing data. This is needed to handle the situation where a document starts with a processing instruction whose target name starts with "xml". (e.g. xmlfoo)
  Overrides:
    `scanPIData` in class `XMLScanner`
  Parameters:
    `target` - The PI target
    `data` - The string to fill in with the data

### scanComment

    protected void scanComment()
                        throws java.io.IOException,
                               org.apache.xerces.xni.XNIException

  Scans a comment.

       [15] Comment ::= '<!--' ((Char - '-') | ('-' (Char - '-')))* '-->'

  Note: Called after scanning past '<!--'

### scanStartElement

    protected boolean scanStartElement()
                                throws java.io.IOException,
                                       org.apache.xerces.xni.XNIException

  Scans a start element. This method will handle the binding of namespace information and notifying the handler of the start of the element.

       [44] EmptyElemTag ::= '<' Name (S Attribute)* S? '/>'
       [40] STag ::= '<' Name (S Attribute)* S? '>'

  Note: This method assumes that the leading '<' character has been consumed.

  Note: This method uses the fElementQName and fAttributes variables. The contents of these variables will be destroyed. The caller should copy important information out of these variables before calling this method.

  Returns:
    True if element is empty. (i.e. It matches production [44].

### scanStartElementName

    protected void scanStartElementName()
                                 throws java.io.IOException,
                                        org.apache.xerces.xni.XNIException

  Scans the name of an element in a start or empty tag.
  See Also:
    `scanStartElement()`

### scanStartElementAfterName

    protected boolean scanStartElementAfterName()
                                         throws java.io.IOException,
                                                org.apache.xerces.xni.XNIException

  Scans the remainder of a start or empty tag after the element name.
  Returns:
    True if element is empty.
  See Also:
    `scanStartElement()`

### scanAttribute

    protected void scanAttribute(org.apache.xerces.xni.XMLAttributes attributes)
                          throws java.io.IOException,
                                 org.apache.xerces.xni.XNIException

  Scans an attribute.

       [41] Attribute ::= Name Eq AttValue

  Note: This method assumes that the next character on the stream is the first character of the attribute name.

  Note: This method uses the fAttributeQName and fQName variables. The contents of these variables will be destroyed.

  Parameters:
    `attributes` - The attributes list for the scanned attribute.

### scanContent

    protected int scanContent()
                       throws java.io.IOException,
                              org.apache.xerces.xni.XNIException

  Scans element content.
  Returns:
    Returns the next character on the stream.

### scanCDATASection

    protected boolean scanCDATASection(boolean complete)
                                throws java.io.IOException,
                                       org.apache.xerces.xni.XNIException

  Scans a CDATA section.

  Note: This method uses the fTempString and fStringBuffer variables.

  Parameters:
    `complete` - True if the CDATA section is to be scanned completely.
  Returns:
    True if CDATA is completely scanned.

### scanEndElement

    protected int scanEndElement()
                          throws java.io.IOException,
                                 org.apache.xerces.xni.XNIException

  Scans an end element.

       [42] ETag ::= '</' Name S? '>'

  Note: This method uses the fElementQName variable. The contents of this variable will be destroyed. The caller should copy the needed information out of this variable before calling this method.

  Returns:
    The element depth.

### scanCharReference

    protected void scanCharReference()
                              throws java.io.IOException,
                                     org.apache.xerces.xni.XNIException

  Scans a character reference.

       [66] CharRef ::= '&#' [0-9]+ ';' | '&#x' [0-9a-fA-F]+ ';'

### scanEntityReference

    protected void scanEntityReference()
                                throws java.io.IOException,
                                       org.apache.xerces.xni.XNIException

  Scans an entity reference.
  Throws:
    `java.io.IOException` - Thrown if i/o error occurs.
    `org.apache.xerces.xni.XNIException` - Thrown if handler throws exception upon notification.

### handleEndElement

    protected int handleEndElement(org.apache.xerces.xni.QName element,
                                   boolean isEmpty)
                            throws org.apache.xerces.xni.XNIException

  Handles the end element. This method will make sure that the end element name matches the current element and notify the handler about the end of the element and the end of any relevent prefix mappings.

  Note: This method uses the fQName variable. The contents of this variable will be destroyed.

  Parameters:
    `element` - The element.
  Returns:
    The element depth.
  Throws:
    `org.apache.xerces.xni.XNIException` - Thrown if the handler throws a SAX exception upon notification.

### setScannerState

    protected final void setScannerState(int state)

  Sets the scanner state.
  Parameters:
    `state` - The new scanner state.

### setDispatcher

    protected final void setDispatcher(XMLDocumentFragmentScannerImpl.Dispatcher dispatcher)

  Sets the dispatcher.
  Parameters:
    `dispatcher` - The new dispatcher.

### getScannerStateName

    protected java.lang.String getScannerStateName(int state)

  Returns the scanner state name.

### getDispatcherName

    public java.lang.String getDispatcherName(XMLDocumentFragmentScannerImpl.Dispatcher dispatcher)

  Returns the dispatcher name.

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