From 6ca84a804a7378e79bbb1d5a6d646ead7e6cfa46 Mon Sep 17 00:00:00 2001 From: Michael Koch Date: Sat, 19 Feb 2005 18:47:29 +0000 Subject: [multiple changes] 2005-02-19 Michael Koch * Makefile.am: Added new files in gnu/java/beans and java/beans/XMLDecoder.java. * Makefile.in: Regenerated. 2005-02-19 Robert Schuster * gnu/java/beans/decoder/GrowableArrayContext.java: Fixed assignment behavior by using java.lang.reflect.Array.set() directly. 2005-02-19 Dalibor Topic * gnu/java/beans/EmptyBeanInfo.java, gnu/java/beans/info/ComponentBeanInfo.java: Removed unused files. 2005-02-19 Robert Schuster * gnu/java/beans/DummyAppletStub.java: Add dummy implementation of AppletStub for java.beans.Beans.instantiate. * gnu/java/beans/DummyAppletContext.java: Add dummy implementation of AppletContext. * java/beans/Beans: Added 1.4 functionality, fixed user documentation to be conformant with Javadoc guidelines. (instantiate): Added two more overloaded variants, reworked user documentation, fixed exception behavior, fixed behavior when deserializing null. 2005-02-19 Mark Wielaard * gnu/java/beans/decoder/DummyHandler.java: Add return statements for failing methods. * gnu/java/beans/decoder/DummyContext.java: Likewise. 2005-02-19 Robert Schuster * gnu/java/beans/decoder/AbstractContext.java, gnu/java/beans/decoder/AbstractCreatableContext.java, gnu/java/beans/decoder/AbstractElementHandler.java, gnu/java/beans/decoder/AbstractObjectContext.java, gnu/java/beans/decoder/ArrayContext.java, gnu/java/beans/decoder/ArrayHandler.java, gnu/java/beans/decoder/AssemblyException.java, gnu/java/beans/decoder/BooleanHandler.java, gnu/java/beans/decoder/ByteHandler.java, gnu/java/beans/decoder/CharHandler.java, gnu/java/beans/decoder/ClassHandler.java, gnu/java/beans/decoder/ConstructorContext.java, gnu/java/beans/decoder/Context.java, gnu/java/beans/decoder/DecoderContext.java, gnu/java/beans/decoder/DefaultExceptionListener.java, gnu/java/beans/decoder/DoubleHandler.java, gnu/java/beans/decoder/DummyContext.java, gnu/java/beans/decoder/DummyHandler.java, gnu/java/beans/decoder/ElementHandler.java, gnu/java/beans/decoder/FloatHandler.java, gnu/java/beans/decoder/GrowableArrayContext.java, gnu/java/beans/decoder/IndexContext.java, gnu/java/beans/decoder/IntHandler.java, gnu/java/beans/decoder/JavaHandler.java, gnu/java/beans/decoder/LongHandler.java, gnu/java/beans/decoder/MethodContext.java, gnu/java/beans/decoder/MethodFinder.java, gnu/java/beans/decoder/NullHandler.java, gnu/java/beans/decoder/ObjectContext.java, gnu/java/beans/decoder/ObjectHandler.java, gnu/java/beans/decoder/PersistenceParser.java, gnu/java/beans/decoder/PropertyContext.java, gnu/java/beans/decoder/ShortHandler.java, gnu/java/beans/decoder/SimpleHandler.java, gnu/java/beans/decoder/StaticMethodContext.java, gnu/java/beans/decoder/StringHandler.java, gnu/java/beans/decoder/VoidHandler.java: New class implementing java.beans.XMLDecoder decoding functionality. * java/beans/XMLDecoder.java: New class. From-SVN: r95287 --- libjava/gnu/java/beans/decoder/ElementHandler.java | 130 +++++++++++++++++++++ 1 file changed, 130 insertions(+) create mode 100644 libjava/gnu/java/beans/decoder/ElementHandler.java (limited to 'libjava/gnu/java/beans/decoder/ElementHandler.java') diff --git a/libjava/gnu/java/beans/decoder/ElementHandler.java b/libjava/gnu/java/beans/decoder/ElementHandler.java new file mode 100644 index 0000000..b3d720c --- /dev/null +++ b/libjava/gnu/java/beans/decoder/ElementHandler.java @@ -0,0 +1,130 @@ +/* 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., 59 Temple Place, Suite 330, Boston, MA +02111-1307 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: Java Persistence Article. + * + * @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(); +} -- cgit v1.1