109 lines
4.1 KiB
Java
109 lines
4.1 KiB
Java
// SAX DTD handler.
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// No warranty; no copyright -- use this as you will.
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// $Id: DTDHandler.java,v 1.1 2000/10/02 02:43:17 sboag Exp $
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package org.xml.sax;
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/**
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* Receive notification of basic DTD-related events.
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*
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* <blockquote>
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* <em>This module, both source code and documentation, is in the
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* Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
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* </blockquote>
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*
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* <p>If a SAX application needs information about notations and
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* unparsed entities, then the application implements this
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* interface and registers an instance with the SAX parser using
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* the parser's setDTDHandler method. The parser uses the
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* instance to report notation and unparsed entity declarations to
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* the application.</p>
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*
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* <p>Note that this interface includes only those DTD events that
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* the XML recommendation <em>requires</em> processors to report:
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* notation and unparsed entity declarations.</p>
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*
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* <p>The SAX parser may report these events in any order, regardless
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* of the order in which the notations and unparsed entities were
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* declared; however, all DTD events must be reported after the
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* document handler's startDocument event, and before the first
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* startElement event.</p>
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*
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* <p>It is up to the application to store the information for
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* future use (perhaps in a hash table or object tree).
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* If the application encounters attributes of type "NOTATION",
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* "ENTITY", or "ENTITIES", it can use the information that it
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* obtained through this interface to find the entity and/or
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* notation corresponding with the attribute value.</p>
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*
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* @since SAX 1.0
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* @author David Megginson,
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* <a href="mailto:sax@megginson.com">sax@megginson.com</a>
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* @version 2.0
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* @see org.xml.sax.Parser#setDTDHandler
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* @see org.xml.sax.HandlerBase
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*/
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public interface DTDHandler {
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/**
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* Receive notification of a notation declaration event.
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*
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* <p>It is up to the application to record the notation for later
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* reference, if necessary.</p>
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*
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* <p>At least one of publicId and systemId must be non-null.
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* If a system identifier is present, and it is a URL, the SAX
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* parser must resolve it fully before passing it to the
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* application through this event.</p>
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*
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* <p>There is no guarantee that the notation declaration will be
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* reported before any unparsed entities that use it.</p>
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*
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* @param name The notation name.
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* @param publicId The notation's public identifier, or null if
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* none was given.
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* @param systemId The notation's system identifier, or null if
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* none was given.
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* @exception org.xml.sax.SAXException Any SAX exception, possibly
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* wrapping another exception.
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* @see #unparsedEntityDecl
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* @see org.xml.sax.AttributeList
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*/
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public abstract void notationDecl (String name,
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String publicId,
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String systemId)
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throws SAXException;
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/**
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* Receive notification of an unparsed entity declaration event.
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*
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* <p>Note that the notation name corresponds to a notation
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* reported by the {@link #notationDecl notationDecl} event.
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* It is up to the application to record the entity for later
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* reference, if necessary.</p>
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*
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* <p>If the system identifier is a URL, the parser must resolve it
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* fully before passing it to the application.</p>
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*
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* @exception org.xml.sax.SAXException Any SAX exception, possibly
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* wrapping another exception.
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* @param name The unparsed entity's name.
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* @param publicId The entity's public identifier, or null if none
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* was given.
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* @param systemId The entity's system identifier.
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* @param notation name The name of the associated notation.
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* @see #notationDecl
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* @see org.xml.sax.AttributeList
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*/
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public abstract void unparsedEntityDecl (String name,
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String publicId,
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String systemId,
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String notationName)
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throws SAXException;
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}
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// end of DTDHandler.java
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