| /* |
| * Copyright (c) 2008, 2018 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0, |
| * or the Eclipse Distribution License v. 1.0 which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause |
| */ |
| |
| // Contributors: |
| // Linda DeMichiel - Java Persistence 2.1 |
| // Linda DeMichiel - Java Persistence 2.0 |
| |
| package javax.persistence.spi; |
| |
| import java.util.List; |
| |
| /** |
| * Determine the list of persistence providers available in the |
| * runtime environment. |
| * |
| * <p> Implementations must be thread-safe. |
| * |
| * <p> Note that the <code>getPersistenceProviders</code> 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 <code>PersistenceProvider</code> implementations |
| * available in the runtime environment. |
| * |
| * @return list of the persistence providers available |
| * in the environment |
| */ |
| List<PersistenceProvider> getPersistenceProviders(); |
| |
| /** |
| * Clear cache of providers. |
| * |
| */ |
| void clearCachedProviders(); |
| } |