102 lines
3.3 KiB
Java
102 lines
3.3 KiB
Java
/* gnu.java.beans.decoder.ConstructorContext
|
|
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.Constructor;
|
|
import java.lang.reflect.InvocationTargetException;
|
|
import java.util.ArrayList;
|
|
|
|
/** A ConstructorContext is a {@link Context} implementation which collects the parameters for a constructor
|
|
* call and instantiates the result object using that constructor. After that sub-contexts can invoke
|
|
* methods on the result object.
|
|
*
|
|
* <p>The constructor is invoked when a sub-context is a statement or the Context ends.</p>
|
|
*
|
|
* @author Robert Schuster
|
|
*/
|
|
class ConstructorContext extends AbstractCreatableObjectContext
|
|
{
|
|
private ArrayList arguments = new ArrayList();
|
|
private Class klass;
|
|
|
|
ConstructorContext(String id, Class newClass)
|
|
{
|
|
setId(id);
|
|
// sets superclass field
|
|
klass = newClass;
|
|
}
|
|
|
|
/* (non-Javadoc)
|
|
* @see gnu.java.beans.decoder.Context#addObject(java.lang.Object)
|
|
*/
|
|
protected void addParameterObjectImpl(Object o)
|
|
{
|
|
arguments.add(o);
|
|
}
|
|
|
|
protected Object createObject(Context outerContext)
|
|
throws AssemblyException
|
|
{
|
|
Object[] args = arguments.toArray();
|
|
|
|
try
|
|
{
|
|
Constructor constructor = MethodFinder.getConstructor(klass, args);
|
|
|
|
// instantiates object (klass field gets re-set by superclass)
|
|
return constructor.newInstance(args);
|
|
}
|
|
catch (NoSuchMethodException nsme)
|
|
{
|
|
throw new AssemblyException(nsme);
|
|
}
|
|
catch (InvocationTargetException ite)
|
|
{
|
|
throw new AssemblyException(ite.getCause());
|
|
}
|
|
catch (IllegalAccessException iae)
|
|
{
|
|
throw new AssemblyException(iae);
|
|
}
|
|
catch (InstantiationException ie)
|
|
{
|
|
throw new AssemblyException(ie);
|
|
}
|
|
}
|
|
|
|
}
|