Merge branch 'Jalview-JS/develop' into merge/Ben_trying_out_JSdevelop_with_develop

[jalview.git] / unused / xml / sax / ext / DefaultHandler2.java

diff --git a/unused/xml/sax/ext/DefaultHandler2.java b/unused/xml/sax/ext/DefaultHandler2.java
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+++ b/unused/xml/sax/ext/DefaultHandler2.java
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+// DefaultHandler2.java - extended DefaultHandler
+// http://www.saxproject.org
+// Public Domain: no warranty.
+// $Id: DefaultHandler2.java,v 1.3 2002/01/12 19:04:19 dbrownell Exp $
+
+package org.xml.sax.ext;
+
+import java.io.IOException;
+import org.xml.sax.InputSource;
+import org.xml.sax.SAXException;
+import org.xml.sax.helpers.DefaultHandler;
+
+
+/**
+ * This class extends the SAX2 base handler class to support the
+ * SAX2 {@link LexicalHandler}, {@link DeclHandler}, and
+ * {@link EntityResolver2} extensions.  Except for overriding the
+ * original SAX1 {@link DefaultHandler#resolveEntity resolveEntity()}
+ * method the added handler methods just return.  Subclassers may
+ * override everything on a method-by-method basis.
+ *
+ * <blockquote>
+ * <em>This module, both source code and documentation, is in the
+ * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
+ * </blockquote>
+ *
+ * <p> <em>Note:</em> this class might yet learn that the
+ * <em>ContentHandler.setDocumentLocator()</em> call might be passed a
+ * {@link Locator2} object, and that the
+ * <em>ContentHandler.startElement()</em> call might be passed a
+ * {@link Attributes2} object.
+ *
+ * @since SAX 2.0 (extensions 1.1 alpha)
+ * @author David Brownell
+ * @version TBS
+ */
+public class DefaultHandler2 extends DefaultHandler
+    implements LexicalHandler, DeclHandler, EntityResolver2
+{
+    /** Constructs a handler which ignores all parsing events. */
+    public DefaultHandler2 () { }
+
+
+    // SAX2 ext-1.0 LexicalHandler
+
+    @Override
+               public void startCDATA ()
+    throws SAXException
+       {}
+
+    @Override
+               public void endCDATA ()
+    throws SAXException
+       {}
+
+    @Override
+               public void startDTD (String name, String publicId, String systemId)
+    throws SAXException
+       {}
+
+    @Override
+               public void endDTD ()
+    throws SAXException
+       {}
+
+    @Override
+               public void startEntity (String name)
+    throws SAXException
+       {}
+
+    @Override
+               public void endEntity (String name)
+    throws SAXException
+       {}
+
+    @Override
+               public void comment (char ch [], int start, int length)
+    throws SAXException
+       { }
+
+
+    // SAX2 ext-1.0 DeclHandler
+
+    @Override
+               public void attributeDecl (String eName, String aName,
+           String type, String mode, String value)
+    throws SAXException
+       {}
+
+    @Override
+               public void elementDecl (String name, String model)
+    throws SAXException
+       {}
+
+    @Override
+               public void externalEntityDecl (String name,
+       String publicId, String systemId)
+    throws SAXException
+       {}
+
+    @Override
+               public void internalEntityDecl (String name, String value)
+    throws SAXException
+       {}
+
+    // SAX2 ext-1.1 EntityResolver2
+
+    /**
+     * Tells the parser that if no external subset has been declared
+     * in the document text, none should be used.
+     */
+    @Override
+               public InputSource getExternalSubset (String name, String baseURI)
+    throws SAXException, IOException
+       { return null; }
+
+    /**
+     * Tells the parser to resolve the systemId against the baseURI
+     * and read the entity text from that resulting absolute URI.
+     * Note that because the older
+     * {@link DefaultHandler#resolveEntity DefaultHandler.resolveEntity()},
+     * method is overridden to call this one, this method may sometimes 
+     * be invoked with null <em>name</em> and <em>baseURI</em>, and
+     * with the <em>systemId</em> already absolutized.
+     */
+    @Override
+               public InputSource resolveEntity (String name, String publicId,
+           String baseURI, String systemId)
+    throws SAXException, IOException
+       { return null; }
+    
+    // SAX1 EntityResolver
+
+    /**
+     * Invokes
+     * {@link EntityResolver2#resolveEntity EntityResolver2.resolveEntity()}
+     * with null entity name and base URI.
+     * You only need to override that method to use this class.
+     */
+    @Override
+               public InputSource resolveEntity (String publicId, String systemId)
+    throws SAXException, IOException
+       { return resolveEntity (null, publicId, null, systemId); }
+}