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/*
 * ConcurrencyGroupElement.java
 *
 * Created on February 29, 2000, 5:21 PM
 */

package com.sun.jdo.api.persistence.model.jdo;

/** 
 *
 * @author raccah
 * @version %I%
 */
public class ConcurrencyGroupElement extends FieldGroupElement
{
	/** Create new ConcurrencyGroupElement with no implementation. 
	 * This constructor should only be used for cloning and archiving.
	 */
	public ConcurrencyGroupElement ()
	{
		this(null, null);
	}

	/** Create new ConcurrencyGroupElement with the provided implementation. 
	 * The implementation is responsible for storing all properties of the 
	 * object.
	 * @param impl the implementation to use
	 * @param declaringClass the class to attach to
	 */
	public ConcurrencyGroupElement (ConcurrencyGroupElement.Impl impl,
		PersistenceClassElement declaringClass)
	{
		super(impl, declaringClass);
	}

	/** @return implemetation factory for this concurrency group
	 */
	final Impl getConcurrencyGroupImpl () { return (Impl)getImpl(); }

	/** Pluggable implementation of concurrency group elements.
	 * @see ConcurrencyGroupElement
	 */
	public interface Impl extends FieldGroupElement.Impl { }
}