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Diffstat (limited to 'gcc-4.4.3/libjava/classpath/external/sax/org/xml/sax/EntityResolver.java')
| -rw-r--r-- | gcc-4.4.3/libjava/classpath/external/sax/org/xml/sax/EntityResolver.java | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/external/sax/org/xml/sax/EntityResolver.java b/gcc-4.4.3/libjava/classpath/external/sax/org/xml/sax/EntityResolver.java new file mode 100644 index 000000000..e240ba14b --- /dev/null +++ b/gcc-4.4.3/libjava/classpath/external/sax/org/xml/sax/EntityResolver.java @@ -0,0 +1,119 @@ +// SAX entity resolver. +// http://www.saxproject.org +// No warranty; no copyright -- use this as you will. +// $Id: EntityResolver.java,v 1.1 2004/12/23 22:38:42 mark Exp $ + +package org.xml.sax; + +import java.io.IOException; + + +/** + * Basic interface for resolving entities. + * + * <blockquote> + * <em>This module, both source code and documentation, is in the + * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em> + * See <a href='http://www.saxproject.org'>http://www.saxproject.org</a> + * for further information. + * </blockquote> + * + * <p>If a SAX application needs to implement customized handling + * for external entities, it must implement this interface and + * register an instance with the SAX driver using the + * {@link org.xml.sax.XMLReader#setEntityResolver setEntityResolver} + * method.</p> + * + * <p>The XML reader will then allow the application to intercept any + * external entities (including the external DTD subset and external + * parameter entities, if any) before including them.</p> + * + * <p>Many SAX applications will not need to implement this interface, + * but it will be especially useful for applications that build + * XML documents from databases or other specialised input sources, + * or for applications that use URI types other than URLs.</p> + * + * <p>The following resolver would provide the application + * with a special character stream for the entity with the system + * identifier "http://www.myhost.com/today":</p> + * + * <pre> + * import org.xml.sax.EntityResolver; + * import org.xml.sax.InputSource; + * + * public class MyResolver implements EntityResolver { + * public InputSource resolveEntity (String publicId, String systemId) + * { + * if (systemId.equals("http://www.myhost.com/today")) { + * // return a special input source + * MyReader reader = new MyReader(); + * return new InputSource(reader); + * } else { + * // use the default behaviour + * return null; + * } + * } + * } + * </pre> + * + * <p>The application can also use this interface to redirect system + * identifiers to local URIs or to look up replacements in a catalog + * (possibly by using the public identifier).</p> + * + * @since SAX 1.0 + * @author David Megginson + * @version 2.0.1 (sax2r2) + * @see org.xml.sax.XMLReader#setEntityResolver + * @see org.xml.sax.InputSource + */ +public interface EntityResolver { + + + /** + * Allow the application to resolve external entities. + * + * <p>The parser will call this method before opening any external + * entity except the top-level document entity. Such entities include + * the external DTD subset and external parameter entities referenced + * within the DTD (in either case, only if the parser reads external + * parameter entities), and external general entities referenced + * within the document element (if the parser reads external general + * entities). The application may request that the parser locate + * the entity itself, that it use an alternative URI, or that it + * use data provided by the application (as a character or byte + * input stream).</p> + * + * <p>Application writers can use this method to redirect external + * system identifiers to secure and/or local URIs, to look up + * public identifiers in a catalogue, or to read an entity from a + * database or other input source (including, for example, a dialog + * box). Neither XML nor SAX specifies a preferred policy for using + * public or system IDs to resolve resources. However, SAX specifies + * how to interpret any InputSource returned by this method, and that + * if none is returned, then the system ID will be dereferenced as + * a URL. </p> + * + * <p>If the system identifier is a URL, the SAX parser must + * resolve it fully before reporting it to the application.</p> + * + * @param publicId The public identifier of the external entity + * being referenced, or null if none was supplied. + * @param systemId The system identifier of the external entity + * being referenced. + * @return An InputSource object describing the new input source, + * or null to request that the parser open a regular + * URI connection to the system identifier. + * @exception org.xml.sax.SAXException Any SAX exception, possibly + * wrapping another exception. + * @exception java.io.IOException A Java-specific IO exception, + * possibly the result of creating a new InputStream + * or Reader for the InputSource. + * @see org.xml.sax.InputSource + */ + public abstract InputSource resolveEntity (String publicId, + String systemId) + throws SAXException, IOException; + +} + +// end of EntityResolver.java |