javax.persistence.spi.PersistenceProviderResolver Maven / Gradle / Ivy

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/*
 * Copyright (c) 2008, 2009, 2011 Oracle, Inc. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
 * which accompanies this distribution.  The Eclipse Public License is available
 * at http://www.eclipse.org/legal/epl-v10.html and the Eclipse Distribution License
 * is available at http://www.eclipse.org/org/documents/edl-v10.php.
 */
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();
}