Package org.jdom.output

Class SAXOutputter

  • public class SAXOutputter
extends java.lang.Object
    Outputs a JDOM document as a stream of SAX2 events.

    Most ContentHandler callbacks are supported. Both ignorableWhitespace() and skippedEntity() have not been implemented. The JDOMLocator class returned by getLocator() exposes the current node being operated upon.

    At this time, it is not possible to access notations and unparsed entity references in a DTD from JDOM. Therefore, DTDHandler callbacks have not been implemented yet.

    The ErrorHandler callbacks have not been implemented, since these are supposed to be invoked when the document is parsed and at this point the document exists in memory and is known to have no errors.

    Version:
    $Revision: 1.40 $, $Date: 2007/11/10 05:29:01 $
    Author:
    Brett McLaughlin, Jason Hunter, Fred Trimble, Bradley S. Huffman

    • Constructor Summary

      Constructors 
      Constructor Description
      SAXOutputter()
      This will create a SAXOutputter without any registered handler.
      SAXOutputter​(org.xml.sax.ContentHandler contentHandler)
      This will create a SAXOutputter with the specified ContentHandler.
      SAXOutputter​(org.xml.sax.ContentHandler contentHandler, org.xml.sax.ErrorHandler errorHandler, org.xml.sax.DTDHandler dtdHandler, org.xml.sax.EntityResolver entityResolver)
      This will create a SAXOutputter with the specified SAX2 handlers.
      SAXOutputter​(org.xml.sax.ContentHandler contentHandler, org.xml.sax.ErrorHandler errorHandler, org.xml.sax.DTDHandler dtdHandler, org.xml.sax.EntityResolver entityResolver, org.xml.sax.ext.LexicalHandler lexicalHandler)
      This will create a SAXOutputter with the specified SAX2 handlers.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      protected org.xml.sax.XMLReader createParser()
      Creates a SAX XMLReader.
      org.xml.sax.ContentHandler getContentHandler()
      Returns the registered ContentHandler.
      org.xml.sax.ext.DeclHandler getDeclHandler()
      Return the registered DeclHandler.
      org.xml.sax.DTDHandler getDTDHandler()
      Return the registered DTDHandler.
      org.xml.sax.EntityResolver getEntityResolver()
      Return the registered EntityResolver.
      org.xml.sax.ErrorHandler getErrorHandler()
      Return the registered ErrorHandler.
      boolean getFeature​(java.lang.String name)
      This will look up the value of a SAX feature.
      org.xml.sax.ext.LexicalHandler getLexicalHandler()
      Return the registered LexicalHandler.
      JDOMLocator getLocator()
      Returns a JDOMLocator object referencing the node currently being processed by this outputter.
      java.lang.Object getProperty​(java.lang.String name)
      This will look up the value of a SAX property.
      boolean getReportDTDEvents()
      Returns whether DTD events will be reported.
      boolean getReportNamespaceDeclarations()
      Returns whether attribute namespace declarations shall be reported as "xmlns" attributes.
      void output​(java.util.List nodes)
      This will output a list of JDOM nodes as a document, firing off the SAX events that have been registered.
      void output​(Document document)
      This will output the JDOM Document, firing off the SAX events that have been registered.
      void output​(Element node)
      This will output a single JDOM element as a document, firing off the SAX events that have been registered.
      void outputFragment​(java.util.List nodes)
      This will output a list of JDOM nodes as a fragment of an XML document, firing off the SAX events that have been registered.
      void outputFragment​(Content node)
      This will output a single JDOM nodes as a fragment of an XML document, firing off the SAX events that have been registered.
      void setContentHandler​(org.xml.sax.ContentHandler contentHandler)
      This will set the ContentHandler.
      void setDeclHandler​(org.xml.sax.ext.DeclHandler declHandler)
      This will set the DeclHandler.
      void setDTDHandler​(org.xml.sax.DTDHandler dtdHandler)
      This will set the DTDHandler.
      void setEntityResolver​(org.xml.sax.EntityResolver entityResolver)
      This will set the EntityResolver.
      void setErrorHandler​(org.xml.sax.ErrorHandler errorHandler)
      This will set the ErrorHandler.
      void setFeature​(java.lang.String name, boolean value)
      This will set the state of a SAX feature.
      void setLexicalHandler​(org.xml.sax.ext.LexicalHandler lexicalHandler)
      This will set the LexicalHandler.
      void setProperty​(java.lang.String name, java.lang.Object value)
      This will set the value of a SAX property.
      void setReportDTDEvents​(boolean reportDtdEvents)
      This will define whether to report DTD events to SAX DeclHandlers and LexicalHandlers if these handlers are registered and the document to output includes a DocType declaration.
      void setReportNamespaceDeclarations​(boolean declareNamespaces)
      This will define whether attribute namespace declarations shall be reported as "xmlns" attributes.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • SAXOutputter

        public SAXOutputter()
        This will create a SAXOutputter without any registered handler. The application is then responsible for registering them using the setXxxHandler() methods.

      • SAXOutputter

        public SAXOutputter​(org.xml.sax.ContentHandler contentHandler)
        This will create a SAXOutputter with the specified ContentHandler.
        Parameters:
        contentHandler - contains ContentHandler callback methods

      • SAXOutputter

        public SAXOutputter​(org.xml.sax.ContentHandler contentHandler,
                    org.xml.sax.ErrorHandler errorHandler,
                    org.xml.sax.DTDHandler dtdHandler,
                    org.xml.sax.EntityResolver entityResolver)
        This will create a SAXOutputter with the specified SAX2 handlers. At this time, only ContentHandler and EntityResolver are supported.
        Parameters:
        contentHandler - contains ContentHandler callback methods
        errorHandler - contains ErrorHandler callback methods
        dtdHandler - contains DTDHandler callback methods
        entityResolver - contains EntityResolver callback methods

      • SAXOutputter

        public SAXOutputter​(org.xml.sax.ContentHandler contentHandler,
                    org.xml.sax.ErrorHandler errorHandler,
                    org.xml.sax.DTDHandler dtdHandler,
                    org.xml.sax.EntityResolver entityResolver,
                    org.xml.sax.ext.LexicalHandler lexicalHandler)
        This will create a SAXOutputter with the specified SAX2 handlers. At this time, only ContentHandler and EntityResolver are supported.
        Parameters:
        contentHandler - contains ContentHandler callback methods
        errorHandler - contains ErrorHandler callback methods
        dtdHandler - contains DTDHandler callback methods
        entityResolver - contains EntityResolver callback methods
        lexicalHandler - contains LexicalHandler callbacks.

    • Method Detail

      • setContentHandler

        public void setContentHandler​(org.xml.sax.ContentHandler contentHandler)
        This will set the ContentHandler.
        Parameters:
        contentHandler - contains ContentHandler callback methods.

      • getContentHandler

        public org.xml.sax.ContentHandler getContentHandler()
        Returns the registered ContentHandler.
        Returns:
        the current ContentHandler or null if none was registered.

      • setErrorHandler

        public void setErrorHandler​(org.xml.sax.ErrorHandler errorHandler)
        This will set the ErrorHandler.
        Parameters:
        errorHandler - contains ErrorHandler callback methods.

      • getErrorHandler

        public org.xml.sax.ErrorHandler getErrorHandler()
        Return the registered ErrorHandler.
        Returns:
        the current ErrorHandler or null if none was registered.

      • setDTDHandler

        public void setDTDHandler​(org.xml.sax.DTDHandler dtdHandler)
        This will set the DTDHandler.
        Parameters:
        dtdHandler - contains DTDHandler callback methods.

      • getDTDHandler

        public org.xml.sax.DTDHandler getDTDHandler()
        Return the registered DTDHandler.
        Returns:
        the current DTDHandler or null if none was registered.

      • setEntityResolver

        public void setEntityResolver​(org.xml.sax.EntityResolver entityResolver)
        This will set the EntityResolver.
        Parameters:
        entityResolver - contains EntityResolver callback methods.

      • getEntityResolver

        public org.xml.sax.EntityResolver getEntityResolver()
        Return the registered EntityResolver.
        Returns:
        the current EntityResolver or null if none was registered.

      • setLexicalHandler

        public void setLexicalHandler​(org.xml.sax.ext.LexicalHandler lexicalHandler)
        This will set the LexicalHandler.
        Parameters:
        lexicalHandler - contains lexical callback methods.

      • getLexicalHandler

        public org.xml.sax.ext.LexicalHandler getLexicalHandler()
        Return the registered LexicalHandler.
        Returns:
        the current LexicalHandler or null if none was registered.

      • setDeclHandler

        public void setDeclHandler​(org.xml.sax.ext.DeclHandler declHandler)
        This will set the DeclHandler.
        Parameters:
        declHandler - contains declaration callback methods.

      • getDeclHandler

        public org.xml.sax.ext.DeclHandler getDeclHandler()
        Return the registered DeclHandler.
        Returns:
        the current DeclHandler or null if none was registered.

      • getReportNamespaceDeclarations

        public boolean getReportNamespaceDeclarations()
        Returns whether attribute namespace declarations shall be reported as "xmlns" attributes.
        Returns:
        whether attribute namespace declarations shall be reported as "xmlns" attributes.

      • setReportNamespaceDeclarations

        public void setReportNamespaceDeclarations​(boolean declareNamespaces)
        This will define whether attribute namespace declarations shall be reported as "xmlns" attributes. This flag defaults to false and behaves as the "namespace-prefixes" SAX core feature.
        Parameters:
        declareNamespaces - whether attribute namespace declarations shall be reported as "xmlns" attributes.

      • getReportDTDEvents

        public boolean getReportDTDEvents()
        Returns whether DTD events will be reported.
        Returns:
        whether DTD events will be reported

      • setReportDTDEvents

        public void setReportDTDEvents​(boolean reportDtdEvents)
        This will define whether to report DTD events to SAX DeclHandlers and LexicalHandlers if these handlers are registered and the document to output includes a DocType declaration.
        Parameters:
        reportDtdEvents - whether to notify DTD events.

      • setFeature

        public void setFeature​(java.lang.String name,
                       boolean value)
                throws org.xml.sax.SAXNotRecognizedException,
                       org.xml.sax.SAXNotSupportedException
        This will set the state of a SAX feature.

        All XMLReaders are required to support setting to true and to false.

        SAXOutputter currently supports the following SAX core features:

        http://xml.org/sax/features/namespaces
        description: true indicates namespace URIs and unprefixed local names for element and attribute names will be available
        access: read/write, but always true!
        http://xml.org/sax/features/namespace-prefixes
        description: true indicates XML 1.0 names (with prefixes) and attributes (including xmlns* attributes) will be available
        access: read/write
        http://xml.org/sax/features/validation
        description: controls whether SAXOutputter is reporting DTD-related events; if true, the DocType internal subset will be parsed to fire DTD events
        access: read/write, defaults to true

        Parameters:
        name - String the feature name, which is a fully-qualified URI.
        value - boolean the requested state of the feature (true or false).
        Throws:
        org.xml.sax.SAXNotRecognizedException - when SAXOutputter does not recognize the feature name.
        org.xml.sax.SAXNotSupportedException - when SAXOutputter recognizes the feature name but cannot set the requested value.

      • getFeature

        public boolean getFeature​(java.lang.String name)
                   throws org.xml.sax.SAXNotRecognizedException,
                          org.xml.sax.SAXNotSupportedException
        This will look up the value of a SAX feature.
        Parameters:
        name - String the feature name, which is a fully-qualified URI.
        Returns:
        boolean the current state of the feature (true or false).
        Throws:
        org.xml.sax.SAXNotRecognizedException - when SAXOutputter does not recognize the feature name.
        org.xml.sax.SAXNotSupportedException - when SAXOutputter recognizes the feature name but determine its value at this time.

      • setProperty

        public void setProperty​(java.lang.String name,
                        java.lang.Object value)
                 throws org.xml.sax.SAXNotRecognizedException,
                        org.xml.sax.SAXNotSupportedException
        This will set the value of a SAX property. This method is also the standard mechanism for setting extended handlers.

        SAXOutputter currently supports the following SAX properties:

        http://xml.org/sax/properties/lexical-handler
        data type: org.xml.sax.ext.LexicalHandler
        description: An optional extension handler for lexical events like comments.
        access: read/write
        http://xml.org/sax/properties/declaration-handler
        data type: org.xml.sax.ext.DeclHandler
        description: An optional extension handler for DTD-related events other than notations and unparsed entities.
        access: read/write

        Parameters:
        name - String the property name, which is a fully-qualified URI.
        value - Object the requested value for the property.
        Throws:
        org.xml.sax.SAXNotRecognizedException - when SAXOutputter does not recognize the property name.
        org.xml.sax.SAXNotSupportedException - when SAXOutputter recognizes the property name but cannot set the requested value.

      • getProperty

        public java.lang.Object getProperty​(java.lang.String name)
                             throws org.xml.sax.SAXNotRecognizedException,
                                    org.xml.sax.SAXNotSupportedException
        This will look up the value of a SAX property.
        Parameters:
        name - String the property name, which is a fully-qualified URI.
        Returns:
        Object the current value of the property.
        Throws:
        org.xml.sax.SAXNotRecognizedException - when SAXOutputter does not recognize the property name.
        org.xml.sax.SAXNotSupportedException - when SAXOutputter recognizes the property name but cannot determine its value at this time.

      • output

        public void output​(Document document)
            throws JDOMException
        This will output the JDOM Document, firing off the SAX events that have been registered.
        Parameters:
        document - JDOM Document to output.
        Throws:
        JDOMException - if any error occurred.

      • output

        public void output​(java.util.List nodes)
            throws JDOMException
        This will output a list of JDOM nodes as a document, firing off the SAX events that have been registered.

        Warning: This method may output ill-formed XML documents if the list contains top-level objects that are not legal at the document level (e.g. Text or CDATA nodes, multiple Element nodes, etc.). Thus, it should only be used to output document portions towards ContentHandlers capable of accepting such ill-formed documents (such as XSLT processors).

        Parameters:
        nodes - List of JDOM nodes to output.
        Throws:
        JDOMException - if any error occurred.
        See Also:
        output(org.jdom.Document)

      • output

        public void output​(Element node)
            throws JDOMException
        This will output a single JDOM element as a document, firing off the SAX events that have been registered.
        Parameters:
        node - the Element node to output.
        Throws:
        JDOMException - if any error occurred.

      • outputFragment

        public void outputFragment​(java.util.List nodes)
                    throws JDOMException
        This will output a list of JDOM nodes as a fragment of an XML document, firing off the SAX events that have been registered.

        Warning: This method does not call the ContentHandler.setDocumentLocator(org.xml.sax.Locator), ContentHandler.startDocument() and ContentHandler.endDocument() callbacks on the ContentHandler. The user shall invoke these methods directly prior/after outputting the document fragments.

        Parameters:
        nodes - List of JDOM nodes to output.
        Throws:
        JDOMException - if any error occurred.
        See Also:
        outputFragment(org.jdom.Content)

      • outputFragment

        public void outputFragment​(Content node)
                    throws JDOMException
        This will output a single JDOM nodes as a fragment of an XML document, firing off the SAX events that have been registered.

        Warning: This method does not call the ContentHandler.setDocumentLocator(org.xml.sax.Locator), ContentHandler.startDocument() and ContentHandler.endDocument() callbacks on the ContentHandler. The user shall invoke these methods directly prior/after outputting the document fragments.

        Parameters:
        node - the Content node to output.
        Throws:
        JDOMException - if any error occurred.
        See Also:
        outputFragment(java.util.List)

      • createParser

        protected org.xml.sax.XMLReader createParser()
                                      throws java.lang.Exception

        Creates a SAX XMLReader.

        Returns:
        XMLReader a SAX2 parser.
        Throws:
        java.lang.Exception - if no parser can be created.

      • getLocator

        public JDOMLocator getLocator()
        Returns a JDOMLocator object referencing the node currently being processed by this outputter. The returned object is a snapshot of the location information and can thus safely be memorized for later use.

        This method allows direct access to the location information maintained by SAXOutputter without requiring to implement XMLFilter. (In SAX, locators are only available though the ContentHandler interface).

        Note that location information is only available while SAXOutputter is outputting nodes. Hence this method should only be used by objects taking part in the output processing such as ErrorHandlers.

        Returns:
        a JDOMLocator object referencing the node currently being processed or null if no output operation is being performed.