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Showing content from https://docs.oracle.com/en/java/javase/20/docs/api/java.xml/javax/xml/parsers/SAXParserFactory.html below:

SAXParserFactory (Java SE 20 & JDK 20)

Defines a factory API that enables applications to configure and obtain a SAX based parser to parse XML documents.

Since:

1.4

• Constructor Summary

  Constructors

• Method Summary

  abstract boolean

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

  boolean

  Indicates whether or not the factory is configured to produce parsers which are namespace aware.

  boolean

  Indicates whether or not the factory is configured to produce parsers which validate the XML content during parse.

  boolean

  Get state of XInclude processing.

  Creates a new instance of the SAXParserFactory builtin system-default implementation.

  Creates a new NamespaceAware instance of the SAXParserFactory builtin system-default implementation.

  Obtains a new instance of a SAXParserFactory.

  Obtain a new instance of a SAXParserFactory from class name.

  Creates a new NamespaceAware instance of a SAXParserFactory.

  Creates a new NamespaceAware instance of a SAXParserFactory from the class name.

  Creates a new instance of a SAXParser using the currently configured factory parameters.

  abstract void

  Sets the particular feature in the underlying implementation of org.xml.sax.XMLReader.

  void

  Specifies that the parser produced by this code will provide support for XML namespaces.

  void

  Set the

  Schema

  to be used by parsers created from this factory.

  void

  Specifies that the parser produced by this code will validate documents as they are parsed.

  void

  Set state of XInclude processing.

  Methods declared in class java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

• Constructor Details
  • SAXParserFactory

    protected SAXParserFactory()

• Method Details
  • newDefaultNSInstance

    Creates a new NamespaceAware instance of the SAXParserFactory builtin system-default implementation. Parsers produced by the factory instance provides support for XML namespaces by default.

    Implementation Requirements:

    In addition to creating a factory instance using the same process as newDefaultInstance(), this method must set NamespaceAware to true.

    Returns:

    a new instance of the SAXParserFactory builtin system-default implementation.

    Since:

    13

  • newNSInstance

    Creates a new NamespaceAware instance of a SAXParserFactory. Parsers produced by the factory instance provides support for XML namespaces by default.

    Implementation Requirements:

    In addition to creating a factory instance using the same process as newInstance(), this method must set NamespaceAware to true.

    Returns:

    a new instance of the SAXParserFactory

    Throws:

    FactoryConfigurationError - in case of service configuration error or if the implementation is not available or cannot be instantiated.

    Since:

    13

  • newNSInstance

    Creates a new NamespaceAware instance of a SAXParserFactory from the class name. Parsers produced by the factory instance provides support for XML namespaces by default.

    Implementation Requirements:

    In addition to creating a factory instance using the same process as newInstance(java.lang.String, java.lang.ClassLoader), this method must set NamespaceAware to true.

    Parameters:

    factoryClassName - a fully qualified factory class name that provides implementation of javax.xml.parsers.SAXParserFactory.

    classLoader - the ClassLoader used to load the factory class. If it is null, the current Thread's context classLoader is used to load the factory class.

    Returns:

    a new instance of the SAXParserFactory

    Throws:

    FactoryConfigurationError - if factoryClassName is null, or the factory class cannot be loaded, instantiated.

    Since:

    13

  • newDefaultInstance

    Creates a new instance of the SAXParserFactory builtin system-default implementation.

    Returns:

    A new instance of the SAXParserFactory builtin system-default implementation.

    Since:

    9

  • newInstance

    Obtains a new instance of a

    SAXParserFactory

    . This method uses the

    JAXP Lookup Mechanism

    to determine the

    SAXParserFactory

    implementation class to load.

    Once an application has obtained a reference to a SAXParserFactory, it can use the factory to configure and obtain parser instances.

    Tip for Trouble-shooting

    Setting the jaxp.debug system property will cause this method to print a lot of debug messages to System.err about what it is doing and where it is looking at.

    If you have problems loading SAXParsers, try:

     java -Djaxp.debug=1 YourProgram ....
     

    Returns:

    A new instance of a SAXParserFactory.

    Throws:

    FactoryConfigurationError - in case of service configuration error or if the implementation is not available or cannot be instantiated.

  • newInstance

    Obtain a new instance of a

    SAXParserFactory

    from class name. This function is useful when there are multiple providers in the classpath. It gives more control to the application as it can specify which provider should be loaded.

    Once an application has obtained a reference to a SAXParserFactory it can use the factory to configure and obtain parser instances.

    Tip for Trouble-shooting

    Setting the jaxp.debug system property will cause this method to print a lot of debug messages to System.err about what it is doing and where it is looking at.

    If you have problems, try:

     java -Djaxp.debug=1 YourProgram ....
     

    Parameters:

    factoryClassName - fully qualified factory class name that provides implementation of javax.xml.parsers.SAXParserFactory.

    classLoader - ClassLoader used to load the factory class. If null current Thread's context classLoader is used to load the factory class.

    Returns:

    New instance of a SAXParserFactory

    Throws:

    FactoryConfigurationError - if factoryClassName is null, or the factory class cannot be loaded, instantiated.

    Since:

    1.6

    See Also:

    • newInstance()

  • newSAXParser

    Creates a new instance of a SAXParser using the currently configured factory parameters.

    Returns:

    A new instance of a SAXParser.

    Throws:

    ParserConfigurationException - if a parser cannot be created which satisfies the requested configuration.

    SAXException - for SAX errors.

  • setNamespaceAware

    public void setNamespaceAware(boolean awareness)

    Specifies that the parser produced by this code will provide support for XML namespaces. By default the value of this is set to false.

    Parameters:

    awareness - true if the parser produced by this code will provide support for XML namespaces; false otherwise.

  • setValidating

    public void setValidating(boolean validating)

    Specifies that the parser produced by this code will validate documents as they are parsed. By default the value of this is set to

    false

    .

    Note that "the validation" here means a validating parser as defined in the XML recommendation. In other words, it essentially just controls the DTD validation. (except the legacy two properties defined in JAXP 1.2.)

    To use modern schema languages such as W3C XML Schema or RELAX NG instead of DTD, you can configure your parser to be a non-validating parser by leaving the setValidating(boolean) method false, then use the setSchema(Schema) method to associate a schema to a parser.

    Parameters:

    validating - true if the parser produced by this code will validate documents as they are parsed; false otherwise.

  • isNamespaceAware

    public boolean isNamespaceAware()

    Indicates whether or not the factory is configured to produce parsers which are namespace aware.

    Returns:

    true if the factory is configured to produce parsers which are namespace aware; false otherwise.

  • isValidating

    public boolean isValidating()

    Indicates whether or not the factory is configured to produce parsers which validate the XML content during parse.

    Returns:

    true if the factory is configured to produce parsers which validate the XML content during parse; false otherwise.

  • setFeature

    Sets the particular feature in the underlying implementation of org.xml.sax.XMLReader. A list of the core features and properties can be found at

    http://www.saxproject.org/

    All implementations are required to support the XMLConstants.FEATURE_SECURE_PROCESSING feature. When the feature is

    • true: the implementation will limit XML processing to conform to implementation limits. Examples include entity expansion limits and XML Schema constructs that would consume large amounts of resources. If XML processing is limited for security reasons, it will be reported via a call to the registered ErrorHandler.fatalError(SAXParseException exception). See SAXParser parse methods for handler specification.
    • When the feature is false, the implementation will processing XML according to the XML specifications without regard to possible implementation limits.

    Parameters:

    name - The name of the feature to be set.

    value - The value of the feature to be set.

    Throws:

    ParserConfigurationException - if a parser cannot be created which satisfies the requested configuration.

    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.

    NullPointerException - If the name parameter is null.

    See Also:

    • XMLReader.setFeature(java.lang.String, boolean)

  • getFeature

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

    Parameters:

    name - The name of the property to be retrieved.

    Returns:

    Value of the requested property.

    Throws:

    ParserConfigurationException - if a parser cannot be created which satisfies the requested configuration.

    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:

    • XMLReader.getProperty(java.lang.String)

  • getSchema

    Returns:

    the Schema object that was last set through the setSchema(Schema) method, or null if the method was not invoked since a SAXParserFactory is created.

    Throws:

    UnsupportedOperationException - When implementation does not override this method

    Since:

    1.5

  • setSchema public void setSchema(Schema schema)

    Set the

    Schema

    to be used by parsers created from this factory.

    When a Schema is non-null, a parser will use a validator created from it to validate documents before it passes information down to the application.

    When warnings/errors/fatal errors are found by the validator, the parser must handle them as if those errors were found by the parser itself. In other words, if the user-specified ErrorHandler is set, it must receive those errors, and if not, they must be treated according to the implementation specific default error handling rules.

    A validator may modify the SAX event stream (for example by adding default values that were missing in documents), and a parser is responsible to make sure that the application will receive those modified event stream.

    Initially, null is set as the Schema.

    This processing will take effect even if the isValidating() method returns false.

    It is an error to use the http://java.sun.com/xml/jaxp/properties/schemaSource property and/or the http://java.sun.com/xml/jaxp/properties/schemaLanguage property in conjunction with a non-null Schema object. Such configuration will cause a SAXException exception when those properties are set on a SAXParser.

    Note for implementors

    A parser must be able to work with any Schema implementation. However, parsers and schemas are allowed to use implementation-specific custom mechanisms as long as they yield the result described in the specification.

    Parameters:

    schema - Schema to use, null to remove a schema.

    Throws:

    UnsupportedOperationException - When implementation does not override this method

    Since:

    1.5

  • setXIncludeAware

    public void setXIncludeAware(boolean state)

    Set state of XInclude processing.

    If XInclude markup is found in the document instance, should it be processed as specified in XML Inclusions (XInclude) Version 1.0.

    XInclude processing defaults to false.

    Parameters:

    state - Set XInclude processing to true or false

    Throws:

    UnsupportedOperationException - When implementation does not override this method

    Since:

    1.5

  • isXIncludeAware

    public boolean isXIncludeAware()

    Get state of XInclude processing.

    Returns:

    current state of XInclude processing

    Throws:

    UnsupportedOperationException - When implementation does not override this method

    Since:

    1.5

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