/* 
* ################################################################
* 
* ProActive: The Java(TM) library for Parallel, Distributed, 
*            Concurrent computing with Security and Mobility
* 
* Copyright (C) 1997-2002 INRIA/University of Nice-Sophia Antipolis
* Contact: proactive-support@inria.fr
* 
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or any later version.
*  
* This library 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
* Lesser General Public License for more details.
* 
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
* USA
*  
*  Initial developer(s):               The ProActive Team
*                        http://www.inria.fr/oasis/ProActive/contacts.html
*  Contributor(s): 
* 
* ################################################################
*/ 
package org.objectweb.proactive.core.node;      

import org.objectweb.proactive.ActiveObjectCreationException;
import org.objectweb.proactive.core.runtime.ProActiveRuntime;

/**
 * <p>
 * A <code>Node</code> offers a set of services needed by ProActive to work with
 * remote JVM. Each JVM that is aimed to hold active objects should contains at least
 * one instance of the node class. That instance, when created, will be registered
 * to some registry where it is possible to perform a lookup (such as the RMI registry).
 * </p><p>
 * When ProActive needs to interact with a remote JVM, it will lookup for one node associated
 * with that JVM (using typically the RMI Registry) and use this node to perform the interaction.
 * </p><p>
 * We expect several concrete implementations of the Node to be wrtten such as a RMI node, a JINI node ...
 * </p>
 *
 * @author  ProActive Team
 * @version 1.1,  2002/08/28
 * @since   ProActive 0.9
 *
 */
public interface Node
{
	
  /**
   * Returns the node information as one object. This method allows to
   * retrieve all node information in one call to optimize performance.
   * @return the node information as one object
   */
	public NodeInformation getNodeInformation();
	
		
	/**
	 * Returns a reference to the <code>ProActiveRuntime</code> where the node has been created
	 * @return ProActiveRuntime. The reference to the <code>ProActiveRuntime</code> where the node has been created
	 */
	public ProActiveRuntime getProActiveRuntime();
	
	
  /**
   * Returns all activeObjects deployed on this Node
   * @return Object[] contains all activeObjects deployed on this Node
   */
	public Object[] getActiveObjects() throws NodeException,ActiveObjectCreationException;
	
	/**
	 * Returns all activeObjects with the given name deployed on this Node 
	 * or null if such objects do not exist
	 * @param objectName the class of the Active Objects
	 * @return Object[].The set of activeObjects deployed on this node with the given name
	 */
	public Object[] getActiveObject(String objectName) throws NodeException,ActiveObjectCreationException;

}

@@ -3093,22 +3093,21 @@
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 (String 
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Add javadoc