Class SAXParser

java.lang.Object
javax.xml.parsers.SAXParser

public abstract class SAXParser extends java.lang.Object
Defines the API that wraps an XMLReader implementation class. In JAXP 1.0, this class wrapped the Parser interface, however this interface was replaced by the XMLReader. For ease of transition, this class continues to support the same name and interface as well as supporting new methods. An instance of this class can be obtained from the SAXParserFactory.newSAXParser() method. Once an instance of this class is obtained, XML can be parsed from a variety of input sources. These input sources are InputStreams, Files, URLs, and SAX InputSources.

This static method creates a new factory instance based on a system property setting or uses the platform default if no property has been defined.

The system property that controls which Factory implementation to create is named "javax.xml.parsers.SAXParserFactory". This property names a class that is a concrete subclass of this abstract class. If no property is defined, a platform default will be used.

As the content is parsed by the underlying parser, methods of the given HandlerBase or the DefaultHandler are called.

Implementors of this class which wrap an underlaying implementation can consider using the ParserAdapter class to initially adapt their SAX1 implementation to work under this revised class.

Version:
$Revision: 584483 $, $Date: 2007-10-14 05:54:48 +0300 (Sun, 14 Oct 2007) $
Author:
Jeff Suttor
  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    protected
    Protected constructor to prevent instantiation.
  • Method Summary

    Modifier and Type
    Method
    Description
    abstract Parser
    Returns the SAX parser that is encapsulated by the implementation of this class.
    abstract java.lang.Object
    getProperty(java.lang.String name)
    Returns the particular property requested for in the underlying implementation of XMLReader.
    Get a reference to the the Schema being used by the XML processor.
    abstract XMLReader
    Returns the XMLReader that is encapsulated by the implementation of this class.
    abstract boolean
    Indicates whether or not this parser is configured to understand namespaces.
    abstract boolean
    Indicates whether or not this parser is configured to validate XML documents.
    boolean
    Get the XInclude processing mode for this parser.
    void
    parse(java.io.File f, HandlerBase hb)
    Parse the content of the file specified as XML using the specified HandlerBase.
    void
    parse(java.io.File f, DefaultHandler dh)
    Parse the content of the file specified as XML using the specified DefaultHandler.
    void
    parse(java.io.InputStream is, HandlerBase hb)
    Parse the content of the given InputStream instance as XML using the specified HandlerBase.
    void
    parse(java.io.InputStream is, HandlerBase hb, java.lang.String systemId)
    Parse the content of the given InputStream instance as XML using the specified HandlerBase.
    void
    parse(java.io.InputStream is, DefaultHandler dh)
    Parse the content of the given InputStream instance as XML using the specified DefaultHandler.
    void
    parse(java.io.InputStream is, DefaultHandler dh, java.lang.String systemId)
    Parse the content of the given InputStream instance as XML using the specified DefaultHandler.
    void
    parse(java.lang.String uri, HandlerBase hb)
    Parse the content described by the giving Uniform Resource Identifier (URI) as XML using the specified HandlerBase.
    void
    parse(java.lang.String uri, DefaultHandler dh)
    Parse the content described by the giving Uniform Resource Identifier (URI) as XML using the specified DefaultHandler.
    void
    Parse the content given InputSource as XML using the specified HandlerBase.
    void
    Parse the content given InputSource as XML using the specified DefaultHandler.
    void
    Reset this SAXParser to its original configuration.
    abstract void
    setProperty(java.lang.String name, java.lang.Object value)
    Sets the particular property in the underlying implementation of XMLReader.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
  • Constructor Details

  • Method Details

    • reset

      public void reset()

      Reset this SAXParser to its original configuration.

      SAXParser is reset to the same state as when it was created with SAXParserFactory.newSAXParser(). reset() is designed to allow the reuse of existing SAXParsers thus saving resources associated with the creation of new SAXParsers.

      The reset SAXParser is not guaranteed to have the same Schema Object, e.g. Object.equals(Object obj). It is guaranteed to have a functionally equal Schema.

      Since:
      1.5
    • parse

      public void parse(java.io.InputStream is, HandlerBase hb) throws SAXException, java.io.IOException

      Parse the content of the given InputStream instance as XML using the specified HandlerBase. Use of the DefaultHandler version of this method is recommended as the HandlerBase class has been deprecated in SAX 2.0.

      Parameters:
      is - InputStream containing the content to be parsed.
      hb - The SAX HandlerBase to use.
      Throws:
      java.lang.IllegalArgumentException - If the given InputStream is null.
      SAXException - If parse produces a SAX error.
      java.io.IOException - If an IO error occurs interacting with the InputStream.
      See Also:
    • parse

      public void parse(java.io.InputStream is, HandlerBase hb, java.lang.String systemId) throws SAXException, java.io.IOException

      Parse the content of the given InputStream instance as XML using the specified HandlerBase. Use of the DefaultHandler version of this method is recommended as the HandlerBase class has been deprecated in SAX 2.0.

      Parameters:
      is - InputStream containing the content to be parsed.
      hb - The SAX HandlerBase to use.
      systemId - The systemId which is needed for resolving relative URIs.
      Throws:
      java.lang.IllegalArgumentException - If the given InputStream is null.
      java.io.IOException - If any IO error occurs interacting with the InputStream.
      SAXException - If any SAX errors occur during processing.
      See Also:
    • parse

      public void parse(java.io.InputStream is, DefaultHandler dh) throws SAXException, java.io.IOException
      Parse the content of the given InputStream instance as XML using the specified DefaultHandler.
      Parameters:
      is - InputStream containing the content to be parsed.
      dh - The SAX DefaultHandler to use.
      Throws:
      java.lang.IllegalArgumentException - If the given InputStream is null.
      java.io.IOException - If any IO errors occur.
      SAXException - If any SAX errors occur during processing.
      See Also:
    • parse

      public void parse(java.io.InputStream is, DefaultHandler dh, java.lang.String systemId) throws SAXException, java.io.IOException
      Parse the content of the given InputStream instance as XML using the specified DefaultHandler.
      Parameters:
      is - InputStream containing the content to be parsed.
      dh - The SAX DefaultHandler to use.
      systemId - The systemId which is needed for resolving relative URIs.
      Throws:
      java.lang.IllegalArgumentException - If the given InputStream is null.
      java.io.IOException - If any IO errors occur.
      SAXException - If any SAX errors occur during processing.
      See Also:
    • parse

      public void parse(java.lang.String uri, HandlerBase hb) throws SAXException, java.io.IOException
      Parse the content described by the giving Uniform Resource Identifier (URI) as XML using the specified HandlerBase. Use of the DefaultHandler version of this method is recommended as the HandlerBase class has been deprecated in SAX 2.0
      Parameters:
      uri - The location of the content to be parsed.
      hb - The SAX HandlerBase to use.
      Throws:
      java.lang.IllegalArgumentException - If the uri is null.
      java.io.IOException - If any IO errors occur.
      SAXException - If any SAX errors occur during processing.
      See Also:
    • parse

      public void parse(java.lang.String uri, DefaultHandler dh) throws SAXException, java.io.IOException
      Parse the content described by the giving Uniform Resource Identifier (URI) as XML using the specified DefaultHandler.
      Parameters:
      uri - The location of the content to be parsed.
      dh - The SAX DefaultHandler to use.
      Throws:
      java.lang.IllegalArgumentException - If the uri is null.
      java.io.IOException - If any IO errors occur.
      SAXException - If any SAX errors occur during processing.
      See Also:
    • parse

      public void parse(java.io.File f, HandlerBase hb) throws SAXException, java.io.IOException
      Parse the content of the file specified as XML using the specified HandlerBase. Use of the DefaultHandler version of this method is recommended as the HandlerBase class has been deprecated in SAX 2.0
      Parameters:
      f - The file containing the XML to parse
      hb - The SAX HandlerBase to use.
      Throws:
      java.lang.IllegalArgumentException - If the File object is null.
      java.io.IOException - If any IO errors occur.
      SAXException - If any SAX errors occur during processing.
      See Also:
    • parse

      public void parse(java.io.File f, DefaultHandler dh) throws SAXException, java.io.IOException
      Parse the content of the file specified as XML using the specified DefaultHandler.
      Parameters:
      f - The file containing the XML to parse
      dh - The SAX DefaultHandler to use.
      Throws:
      java.lang.IllegalArgumentException - If the File object is null.
      java.io.IOException - If any IO errors occur.
      SAXException - If any SAX errors occur during processing.
      See Also:
    • parse

      public void parse(InputSource is, HandlerBase hb) throws SAXException, java.io.IOException
      Parse the content given InputSource as XML using the specified HandlerBase. Use of the DefaultHandler version of this method is recommended as the HandlerBase class has been deprecated in SAX 2.0
      Parameters:
      is - The InputSource containing the content to be parsed.
      hb - The SAX HandlerBase to use.
      Throws:
      java.lang.IllegalArgumentException - If the InputSource object is null.
      java.io.IOException - If any IO errors occur.
      SAXException - If any SAX errors occur during processing.
      See Also:
    • parse

      public void parse(InputSource is, DefaultHandler dh) throws SAXException, java.io.IOException
      Parse the content given InputSource as XML using the specified DefaultHandler.
      Parameters:
      is - The InputSource containing the content to be parsed.
      dh - The SAX DefaultHandler to use.
      Throws:
      java.lang.IllegalArgumentException - If the InputSource object is null.
      java.io.IOException - If any IO errors occur.
      SAXException - If any SAX errors occur during processing.
      See Also:
    • getParser

      public abstract Parser getParser() throws SAXException
      Returns the SAX parser that is encapsulated by the implementation of this class.
      Returns:
      The SAX parser that is encapsulated by the implementation of this class.
      Throws:
      SAXException - If any SAX errors occur during processing.
    • getXMLReader

      public abstract XMLReader getXMLReader() throws SAXException
      Returns the XMLReader that is encapsulated by the implementation of this class.
      Returns:
      The XMLReader that is encapsulated by the implementation of this class.
      Throws:
      SAXException - If any SAX errors occur during processing.
    • isNamespaceAware

      public abstract boolean isNamespaceAware()
      Indicates whether or not this parser is configured to understand namespaces.
      Returns:
      true if this parser is configured to understand namespaces; false otherwise.
    • isValidating

      public abstract boolean isValidating()
      Indicates whether or not this parser is configured to validate XML documents.
      Returns:
      true if this parser is configured to validate XML documents; false otherwise.
    • setProperty

      public abstract void setProperty(java.lang.String name, java.lang.Object value) throws SAXNotRecognizedException, SAXNotSupportedException

      Sets the particular property in the underlying implementation of XMLReader. A list of the core features and properties can be found at http://sax.sourceforge.net/?selected=get-set.

      Parameters:
      name - The name of the property to be set.
      value - The value of the property to be set.
      Throws:
      SAXNotRecognizedException - When the underlying XMLReader does not recognize the property name.
      SAXNotSupportedException - When the underlying XMLReader recognizes the property name but doesn't support the property.
      See Also:
    • getProperty

      public abstract java.lang.Object getProperty(java.lang.String name) throws SAXNotRecognizedException, SAXNotSupportedException

      Returns the particular property requested for in the underlying implementation of XMLReader.

      Parameters:
      name - The name of the property to be retrieved.
      Returns:
      Value of the requested property.
      Throws:
      SAXNotRecognizedException - When the underlying XMLReader does not recognize the property name.
      SAXNotSupportedException - When the underlying XMLReader recognizes the property name but doesn't support the property.
      See Also:
    • getSchema

      public Schema getSchema()

      Get a reference to the the Schema being used by the XML processor.

      If no schema is being used, null is returned.

      Returns:
      Schema being used or null if none in use
      Throws:
      java.lang.UnsupportedOperationException - For backward compatibility, when implementations for earlier versions of JAXP is used, this exception will be thrown.
      Since:
      1.5
    • isXIncludeAware

      public boolean isXIncludeAware()

      Get the XInclude processing mode for this parser.

      Returns:
      the return value of the SAXParserFactory.isXIncludeAware() when this parser was created from factory.
      Throws:
      java.lang.UnsupportedOperationException - For backward compatibility, when implementations for earlier versions of JAXP is used, this exception will be thrown.
      Since:
      1.5
      See Also: