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