+ * This module, both source code and documentation, is in the + * Public Domain, and comes with NO WARRANTY. + * See http://www.saxproject.org + * for further information. + *+ * + *
This is an optional extension handler for SAX2 to provide more + * complete information about DTD declarations in an XML document. + * XML readers are not required to recognize this handler, and it + * is not part of core-only SAX2 distributions.
+ * + *Note that data-related DTD declarations (unparsed entities and + * notations) are already reported through the {@link + * org.xml.sax.DTDHandler DTDHandler} interface.
+ * + *If you are using the declaration handler together with a lexical + * handler, all of the events will occur between the + * {@link org.xml.sax.ext.LexicalHandler#startDTD startDTD} and the + * {@link org.xml.sax.ext.LexicalHandler#endDTD endDTD} events.
+ * + *To set the DeclHandler for an XML reader, use the
+ * {@link org.xml.sax.XMLReader#setProperty setProperty} method
+ * with the property name
+ * http://xml.org/sax/properties/declaration-handler
+ * and an object implementing this interface (or null) as the value.
+ * If the reader does not report declaration events, it will throw a
+ * {@link org.xml.sax.SAXNotRecognizedException SAXNotRecognizedException}
+ * when you attempt to register the handler.
The content model will consist of the string "EMPTY", the + * string "ANY", or a parenthesised group, optionally followed + * by an occurrence indicator. The model will be normalized so + * that all parameter entities are fully resolved and all whitespace + * is removed,and will include the enclosing parentheses. Other + * normalization (such as removing redundant parentheses or + * simplifying occurrence indicators) is at the discretion of the + * parser.
+ * + * @param name The element type name. + * @param model The content model as a normalized string. + * @exception SAXException The application may raise an exception. + */ + public abstract void elementDecl (String name, String model) + throws SAXException; + + + /** + * Report an attribute type declaration. + * + *Only the effective (first) declaration for an attribute will + * be reported. The type will be one of the strings "CDATA", + * "ID", "IDREF", "IDREFS", "NMTOKEN", "NMTOKENS", "ENTITY", + * "ENTITIES", a parenthesized token group with + * the separator "|" and all whitespace removed, or the word + * "NOTATION" followed by a space followed by a parenthesized + * token group with all whitespace removed.
+ * + *The value will be the value as reported to applications, + * appropriately normalized and with entity and character + * references expanded.
+ * + * @param eName The name of the associated element. + * @param aName The name of the attribute. + * @param type A string representing the attribute type. + * @param mode A string representing the attribute defaulting mode + * ("#IMPLIED", "#REQUIRED", or "#FIXED") or null if + * none of these applies. + * @param value A string representing the attribute's default value, + * or null if there is none. + * @exception SAXException The application may raise an exception. + */ + public abstract void attributeDecl (String eName, + String aName, + String type, + String mode, + String value) + throws SAXException; + + + /** + * Report an internal entity declaration. + * + *Only the effective (first) declaration for each entity + * will be reported. All parameter entities in the value + * will be expanded, but general entities will not.
+ * + * @param name The name of the entity. If it is a parameter + * entity, the name will begin with '%'. + * @param value The replacement text of the entity. + * @exception SAXException The application may raise an exception. + * @see #externalEntityDecl + * @see org.xml.sax.DTDHandler#unparsedEntityDecl + */ + public abstract void internalEntityDecl (String name, String value) + throws SAXException; + + + /** + * Report a parsed external entity declaration. + * + *Only the effective (first) declaration for each entity + * will be reported.
+ * + *If the system identifier is a URL, the parser must resolve it + * fully before passing it to the application.
+ * + * @param name The name of the entity. If it is a parameter + * entity, the name will begin with '%'. + * @param publicId The entity's public identifier, or null if none + * was given. + * @param systemId The entity's system identifier. + * @exception SAXException The application may raise an exception. + * @see #internalEntityDecl + * @see org.xml.sax.DTDHandler#unparsedEntityDecl + */ + public abstract void externalEntityDecl (String name, String publicId, + String systemId) + throws SAXException; + +} + +// end of DeclHandler.java