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+/* gnu.java.beans.decoder.AbstractObjectContext
+ 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.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+/** AbstractObjectContext is the base for all Context implementations which
+ * create or provide a result object during their lifetime.
+ *
+ * <p>This class provides the implementation for an indexed get and set method.
+ * But this does not mean that the result object supports these operation.</p>
+ *
+ * @author Robert Schuster
+ *
+ */
+abstract class AbstractObjectContext extends AbstractContext
+{
+ protected Object object;
+
+ AbstractObjectContext()
+ {}
+
+ /** Sets the result object of the Context.
+ *
+ * @param obj The result object to be set.
+ */
+ protected final void setObject(Object obj)
+ {
+ object = obj;
+ }
+
+ /* (non-Javadoc)
+ * @see gnu.java.beans.decoder.Context#set(int, java.lang.Object)
+ */
+ public final void set(int index, Object o) throws AssemblyException
+ {
+ try
+ {
+ Method method =
+ object.getClass().getMethod(
+ "set",
+ new Class[] { Integer.TYPE, Object.class });
+
+ method.invoke(object, new Object[] { new Integer(index), o });
+ }
+ catch (NoSuchMethodException nsme)
+ {
+ throw new AssemblyException(nsme);
+ }
+ catch (InvocationTargetException ite)
+ {
+ throw new AssemblyException(ite.getCause());
+ }
+ catch (IllegalAccessException iae)
+ {
+ throw new AssemblyException(iae);
+ }
+ }
+
+ /* (non-Javadoc)
+ * @see gnu.java.beans.decoder.Context#get(int)
+ */
+ public final Object get(int index) throws AssemblyException
+ {
+ try
+ {
+ Method method =
+ object.getClass().getMethod(
+ "get",
+ new Class[] { Integer.TYPE });
+
+ return method.invoke(object, new Object[] { new Integer(index)});
+ }
+ catch (NoSuchMethodException nsme)
+ {
+ throw new AssemblyException(nsme);
+ }
+ catch (InvocationTargetException ite)
+ {
+ throw new AssemblyException(ite.getCause());
+ }
+ catch (IllegalAccessException iae)
+ {
+ throw new AssemblyException(iae);
+ }
+ }
+
+ public final Object getResult()
+ {
+ return object;
+ }
+}