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/* StateFactory.java --
   Copyright (C) 2001, 2004, 2006  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
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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
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terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
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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
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exception statement from your version. */
 
 
package javax.naming.spi;
 
import java.util.Hashtable;
 
import javax.naming.Context;
import javax.naming.Name;
import javax.naming.NamingException;
 
/**
 * Represents a factory, producing the object states for binding. The operation,
 * performed by this factory, is the reverse operation with related to the
 * operation, performed by the {@link ObjectFactory}. Classes, implementing
 * this interface, must be public and have public parameterless constructor.
 *
 * @see DirStateFactory
 * @see ObjectFactory
 * @author Warren Levy (warrenl@redhat.com)
 */
public interface StateFactory
{
  /**
   * Get the object state for binding.
   *
   * @param obj the object, for that the binding state must be retrieved. Cannot
   *          be null.
   * @param name the name of this object, related to the nameCtx. Can be null if
   *          not specified.
   * @param nameCtx the naming context, to that the object name is related. Can
   *          be null if the name is related to the initial default context.
   * @param environment the properties for creating the object state. Can be
   *          null if no properties are provided.
   * @return the object state for binding, may be null if no changes are
   *         returned by the factory
   * @throws NamingException
   *
   * @see NamingManager#getStateToBind
   * @see DirectoryManager#getStateToBind
   */
  Object getStateToBind(Object obj, Name name, Context nameCtx,
                               Hashtable<?, ?> environment) throws NamingException;
}