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Hibernate definition of the Java Persistence 2.0 (JSR 317) API.

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// $Id: PersistenceProviderResolver.java 17752 2009-10-15 01:19:21Z [email protected] $
// EJB3 Specification Copyright 2004-2009 Sun Microsystems, Inc.
package javax.persistence.spi;

import java.util.List;

/**
 * Determine the list of persistence providers available in the
 * runtime environment.
 *
 *  Implementations must be thread-safe.
 *
 *  Note that the getPersistenceProviders method can potentially
 * be called many times: it is recommended that the implementation
 * of this method make use of caching.
 *
 * @see PersistenceProvider
 * @since Java Persistence 2.0
 */
public interface PersistenceProviderResolver {
	/**
	 * Returns a list of the PersistenceProvider implementations
	 * available in the runtime environment.
	 *
	 * @return list of the persistence providers available
	 *         in the environment
	 */
	List getPersistenceProviders();

	/**
	 * Clear cache of providers.
	 */
	void clearCachedProviders();
}