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authormkoch <mkoch@138bc75d-0d04-0410-961f-82ee72b054a4>2005-02-19 18:47:29 +0000
committermkoch <mkoch@138bc75d-0d04-0410-961f-82ee72b054a4>2005-02-19 18:47:29 +0000
commit4a592151bddbc021c8ff6c03ceb9a64963f383ae (patch)
tree55ebacd491a20d362082021ef37660e30d015575 /libjava/gnu/java/beans/decoder/VoidHandler.java
parent180c2f19d1c0023cce38a712604d6c8e6d701cea (diff)
downloadppe42-gcc-4a592151bddbc021c8ff6c03ceb9a64963f383ae.tar.gz
ppe42-gcc-4a592151bddbc021c8ff6c03ceb9a64963f383ae.zip
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. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@95287 138bc75d-0d04-0410-961f-82ee72b054a4
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+/* gnu.java.beans.decoder.VoidHandler
+ 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;
+
+public class VoidHandler extends AbstractElementHandler
+{
+ /**
+ * @param PersistenceParser
+ */
+ VoidHandler(ElementHandler parent)
+ {
+ super(parent, true);
+ }
+
+ protected Context startElement(
+ Attributes attributes,
+ ExceptionListener exceptionListener)
+ throws AssemblyException
+ {
+ Context ctx = startElementImpl(attributes);
+ ctx.setStatement(true);
+
+ return ctx;
+ }
+
+ private Context startElementImpl(Attributes attributes)
+ throws AssemblyException
+ {
+ String id = attributes.getValue("id");
+ String className = attributes.getValue("class");
+ String methodName = attributes.getValue("method");
+ String propertyName = attributes.getValue("property");
+ String index = attributes.getValue("index");
+
+ if (className != null)
+ {
+ try
+ {
+ Class klass = instantiateClass(className);
+
+ // class name exists which means that we are in a static context.
+ // so we may want to ...
+ // run a constructor if methodName is "new" or null
+ if (methodName == null || methodName.equals("new"))
+ // if the id is null the result cannot be by the decoder accessed but the
+ // constructor may have side effects (e.g. registering itself in a global registry)
+ return new ConstructorContext(id, klass);
+
+ // (falling through is important!)
+ // run a static method on the given class (if methodName exists, which is implied already)
+ return new StaticMethodContext(id, klass, methodName);
+ }
+ catch (ClassNotFoundException cnfe)
+ {
+ throw new AssemblyException(cnfe);
+ }
+ }
+ else
+ {
+ // className does not exist which means we are in the context of
+ // some object and want to ...
+ // access an element by index
+ if (index != null)
+ {
+ // note: whether this resolves into get(i) or set(i, o) depends on the
+ // number of arguments and is decided by the ObjectAssembler
+ try
+ {
+ return new IndexContext(id, Integer.parseInt(index));
+ }
+ catch (NumberFormatException nfe)
+ {
+ throw new AssemblyException(nfe);
+ }
+ }
+
+ // access a method if methodName exists
+ if (methodName != null)
+ return new MethodContext(id, methodName);
+
+ // (falling through is important!)
+ // access a property if a propertyName exists
+ if (propertyName != null && propertyName.length() > 0)
+ // this is reported as an ordinary method invocation where the propertyName is
+ // converted into a 'setter'-method name: convert first character of property name
+ // to upper case and prepend 'set'
+ // Note: This will be a setter-method because the <void> tag implies that no return
+ // value is expected (but a side effect)
+ return new PropertyContext(id, propertyName);
+ }
+
+ // if code reaches this point the tag has wrong attributes. The following test
+ // does not make it better but can provide are more specific error message for
+ // a common mistake: <void> tags are not allowed to have an idref attribute
+ throw new AssemblyException(
+ new IllegalArgumentException(
+ (attributes.getValue("idref") == null)
+ ? "Missing attributes for <void> tag"
+ : "<void> does not support 'idref' attribute."));
+ }
+}
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