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-/* gnu.java.beans.decoder.ElementHandler
- Copyright (C) 2004 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-package gnu.java.beans.decoder;
-
-import java.beans.ExceptionListener;
-
-import org.xml.sax.Attributes;
-
-/** ElementHandler manages a Context instance and interacts with
- * its parent and child handlers.
- *
- * @author Robert Schuster
- */
-interface ElementHandler
-{
- /** Evaluates the attributes and creates a Context instance.
- * If the creation of the Context instance fails the ElementHandler
- * is marked as failed which may affect the parent handler other.
- *
- * @param attributes Attributes of the XML tag.
- */
- void start(Attributes attributes, ExceptionListener exceptionListener);
-
- /** Post-processes the Context.
- */
- void end(ExceptionListener exceptionListener);
-
- /** Adds characters from the body of the XML tag to the buffer.
- *
- * @param ch
- * @param start
- * @param length
- * @throws SAXException
- */
- void characters(char[] ch, int start, int length);
-
- /** Returns whether a subelement of the given name is allowed. The rules
- * for evaluating this are derived from the javabeans.dtd which can be found
- * here: <a href="http://java.sun.com/products/jfc/tsc/articles/persistence3">Java Persistence Article</a>.
- *
- * @param subElementName
- * @return
- */
- boolean isSubelementAllowed(String subElementName);
-
- /** Provides the same functionality as Class.forName() but allows the decoder
- * to use a different class loader.
- *
- * @param className
- * @return
- * @throws ClassNotFoundException
- */
- Class instantiateClass(String className) throws ClassNotFoundException;
-
- /** Notifies the handler's Context that its child Context will not return
- * a value back. Some Context variants need this information to know when
- * a method or a constructor call can be made.
- *
- * This method is called by a child handler.
- */
- void notifyStatement(ExceptionListener exceptionListener);
-
- /** Returns whether this handler has failed.
- *
- * This is used to skip child elements.
- *
- * @return Whether this handler has failed.
- */
- boolean hasFailed();
-
- /** Returns the Context instance this handler is working on.
- *
- * @return The handler's Context instance.
- */
- Context getContext();
-
- /** Notifies the handler that its Context failed and starts a recursive
- * invocation of the parent handler if it is affected by that failure.
- *
- * Although the method is a public API member it is only used internally.
- */
- void notifyContextFailed();
-
- /** Stores the object under the given id. The object is not stored if the
- * id is null.
- *
- * @param objectId
- * @param o
- */
- void putObject(String objectId, Object o);
-
- Object getObject(String objectId) throws AssemblyException;
-
- ElementHandler getParent();
-}
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