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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN""http://www.w3.org/TR/REC-html40/frameset.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Wed Oct 31 22:26:24 PST 2001 --><TITLE>Java API for XML Processing Specification 1.1: Package org.xml.sax.ext</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"></HEAD><BODY BGCOLOR="white"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Package</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <FONT CLASS="NavBarFont1">Class</FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-use.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../org/xml/sax/package-summary.html"><B>PREV PACKAGE</B></A> <A HREF="../../../../org/xml/sax/helpers/package-summary.html"><B>NEXT PACKAGE</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="package-summary.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><H2>Package org.xml.sax.ext</H2>SAX2-ext: SAX2 Extension Handlers 1.0<P><B>See: </B><BR> <A HREF="#package_description"><B>Description</B></A><P><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Interface Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="DeclHandler.html"><I>DeclHandler</I></A></B></TD><TD>SAX2 extension handler for DTD declaration events.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="LexicalHandler.html"><I>LexicalHandler</I></A></B></TD><TD>SAX2 extension handler for lexical events.</TD></TR></TABLE> <P><A NAME="package_description"><!-- --></A><H2>Package org.xml.sax.ext Description</H2><P><h1>SAX2-ext: SAX2 Extension Handlers 1.0</h1><blockquote><p class="copyright">This document is in the <strong>PUBLICDOMAIN</strong> and comes with <strong>NO WARRANTY</strong> of anykind.</p></blockquote><p>This package, SAX2-ext, is an extension package for SAX2. It isdesigned both to allow SAX drivers to pass certain types of none-coreinformation to applications and to serve as a simple model for otherSAX2 extension packages.</p><p><strong>NOTE:</strong> this package alone does add anyfunctionality; it simply provides optional interfaces for SAX2 driversto use. You must find a SAX2 driver that supports these interfaces ifyou actually want to have access to lexical and declarationinformation.</p><p>The SAX2-ext package currently contains two extension handlers forSAX2:</p><ol><li><a href="javadoc/org/xml/sax/ext/LexicalHandler.html">LexicalHandler</a>, which reports comments, the DOCTYPE declaration,CDATA sections, and (some) entity boundaries; and</li><li><a href="javadoc/org/xml/sax/ext/DeclHandler.html">DeclHandler</a>, which reports element, attribute, and entitydeclarations.</li></ol><p>This package is independent of the SAX2 core, and that independencehas several consequences:</p><ul><li>SAX2 drivers are <em>not</em> required to support these handlers,and you cannot assume that the classes will be present in every SAX2installation.</li><li>This package may be updated independently of SAX2 (i.e. newhandlers may be added without updating SAX2 itself).</li><li>The handlers are not supported explicitly by the SAX2<var>XMLFilter</var> interface (i.e. events are not passed on bydefault); you can subclass XMLFilter if you need such behaviour.</li><li>The handlers need to be registered differently than regular SAX2handlers.</li></ul><p>To set a LexicalHandler, for example, you need to do something like this:</p><blockquote><pre xml:space="preserve">LexicalHandler lh = new MyLexicalHandler();try { xmlReader.setProperty("http://xml.org/sax/properties/lexical-handler", lh);} catch (SAXException e) { System.out.println("LexicalHandler not supported by this SAX2 driver.");}</pre></blockquote><div><h2>SAX2-ext Properties</h2><p>Here is a full definition of the two new SAX2 properties introducedin this version of SAX2-ext:</p><dl><dt><code>http://xml.org/sax/properties/lexical-handler</code></dt><dd><strong>data type:</strong><code>org.xml.sax.ext.LexicalHandler</code></dd><dd><strong>description:</strong> An optional extension handler forlexical events like comments.</dd><dd><strong>access:</strong> read/write</dd><dt><code>http://xml.org/sax/properties/declaration-handler</code></dt><dd><strong>data type:</strong><code>org.xml.sax.ext.DeclHandler</code></dd><dd><strong>description:</strong> An optional extension handler forDTD-related events other than notations and unparsed entities.</dd><dd><strong>access:</strong> read/write</dd></dl><p><strong>See also:</strong> the package's <ahref="javadoc/index.html">JavaDoc</a> documentation.</p><!-- end of "SAX2-ext Properties" --></div><hr /><address>$Id: package.html,v 1.1 2001/05/20 03:12:57 curcuru Exp $</address><P><HR><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_bottom"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_bottom_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Package</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <FONT CLASS="NavBarFont1">Class</FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-use.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../org/xml/sax/package-summary.html"><B>PREV PACKAGE</B></A> <A HREF="../../../../org/xml/sax/helpers/package-summary.html"><B>NEXT PACKAGE</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="package-summary.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR></BODY></HTML>⌨️ 快捷键说明
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