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| author | Michael Koch <mkoch@gcc.gnu.org> | 2005-02-19 18:47:29 +0000 |
|---|---|---|
| committer | Michael Koch <mkoch@gcc.gnu.org> | 2005-02-19 18:47:29 +0000 |
| commit | 6ca84a804a7378e79bbb1d5a6d646ead7e6cfa46 (patch) | |
| tree | 55ebacd491a20d362082021ef37660e30d015575 /libjava/gnu/java/beans/decoder/AbstractCreatableObjectContext.java | |
| parent | 2cdc207340d10fdbf643ae6b83cb289af1ba32d6 (diff) | |
| download | gcc-6ca84a804a7378e79bbb1d5a6d646ead7e6cfa46.zip gcc-6ca84a804a7378e79bbb1d5a6d646ead7e6cfa46.tar.gz gcc-6ca84a804a7378e79bbb1d5a6d646ead7e6cfa46.tar.bz2 | |
[multiple changes]
2005-02-19 Michael Koch <konqueror@gmx.de>
* Makefile.am: Added new files in gnu/java/beans and
java/beans/XMLDecoder.java.
* Makefile.in: Regenerated.
2005-02-19 Robert Schuster <thebohemian@gmx.net>
* gnu/java/beans/decoder/GrowableArrayContext.java: Fixed
assignment behavior by using java.lang.reflect.Array.set()
directly.
2005-02-19 Dalibor Topic <robilad@kaffe.org>
* gnu/java/beans/EmptyBeanInfo.java,
gnu/java/beans/info/ComponentBeanInfo.java:
Removed unused files.
2005-02-19 Robert Schuster <thebohemian@gmx.net>
* 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 <mark@klomp.org>
* gnu/java/beans/decoder/DummyHandler.java: Add return statements for
failing methods.
* gnu/java/beans/decoder/DummyContext.java: Likewise.
2005-02-19 Robert Schuster <theBohemian@gmx.net>
* 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
Diffstat (limited to 'libjava/gnu/java/beans/decoder/AbstractCreatableObjectContext.java')
| -rw-r--r-- | libjava/gnu/java/beans/decoder/AbstractCreatableObjectContext.java | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/libjava/gnu/java/beans/decoder/AbstractCreatableObjectContext.java b/libjava/gnu/java/beans/decoder/AbstractCreatableObjectContext.java new file mode 100644 index 0000000..e2943e2 --- /dev/null +++ b/libjava/gnu/java/beans/decoder/AbstractCreatableObjectContext.java @@ -0,0 +1,113 @@ +/* gnu.java.beans.decoder.AbstractCreatableContext + 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; + + +/** AbstractCreatableObjectContext is the base class for all Context implementations + * which create a result object in their lifetime. It provides means for preventing + * to create the object twice. + * + * @author Robert Schuster + * + */ +abstract class AbstractCreatableObjectContext extends AbstractObjectContext +{ + AbstractCreatableObjectContext() + { + } + + /** Adds a parameter object to this Context if the result object has not been + * created yet. Otherwise an AssemblyException is thrown that indicates a wrong + * behavior of the decoder. + */ + public final void addParameterObject(Object o) throws AssemblyException + { + if (object == null) + addParameterObjectImpl(o); + else + throw new AssemblyException(new IllegalStateException("No more parameter objects are allowed when the object as already been created.")); + } + + /** Adds a parameter object to this Context. Implement this without caring + * for illegal states because this has been done already. + * + * @param obj The parameter object to be added. + */ + protected abstract void addParameterObjectImpl(Object obj); + + /** Creates the result object if it does not exist already. + */ + public final void notifyStatement(Context outerContext) + throws AssemblyException + { + if (object != null) + return; + + object = createObject(outerContext); + } + + /** Creates the result object. This method is called only once. Implement this + * without checking for double invocations as this is already being prevented. + * + * @param outerContext The Context that exists around this one. + * @return The result object. + * @throws AssemblerException if the object creation fails somehow. + */ + protected abstract Object createObject(Context outerContext) + throws AssemblyException; + + /* (non-Javadoc) + * @see gnu.java.beans.decoder.Context#endContext(gnu.java.beans.decoder.Context) + */ + public final Object endContext(Context outerContext) + throws AssemblyException + { + notifyStatement(outerContext); + return object; + } + + /* (non-Javadoc) + * @see gnu.java.beans.decoder.Context#subContextFailed() + */ + public boolean subContextFailed() + { + /* Returns true when the AbstractCreatableObjectContext has not created the result object yet + * (A failed subcontext automatically lets this context fail too.) + */ + return object == null; + } +} |