| /* |
| * Copyright (c) 1998, 2020 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: |
| // Oracle - initial API and implementation from Oracle TopLink |
| package org.eclipse.persistence.platform.server.oc4j; |
| |
| import org.eclipse.persistence.sessions.DatabaseSession; |
| import org.eclipse.persistence.transaction.oc4j.Oc4jTransactionController; |
| import org.eclipse.persistence.platform.database.OraclePlatform; |
| import org.eclipse.persistence.platform.server.ServerPlatformBase; |
| |
| import org.eclipse.persistence.internal.databaseaccess.Platform; |
| |
| /** |
| * PUBLIC: |
| * |
| * This is the concrete subclass responsible for representing Oc4j-specific server behavior. |
| * |
| * This platform overrides: |
| * |
| * getExternalTransactionControllerClass(): to use an Oc4j-specific controller class |
| * initializeServerNameAndVersion(): to call an Oc4j library for this information |
| * |
| */ |
| public class Oc4jPlatform extends ServerPlatformBase { |
| |
| /** |
| * INTERNAL: |
| * Default Constructor: All behavior for the default constructor is inherited |
| */ |
| public Oc4jPlatform(DatabaseSession newDatabaseSession) { |
| super(newDatabaseSession); |
| } |
| |
| /** |
| * INTERNAL: getExternalTransactionControllerClass(): Answer the class of external transaction controller to use |
| * for Oc4j. This is read-only. |
| * |
| * @return Class externalTransactionControllerClass |
| * |
| * @see org.eclipse.persistence.transaction.JTATransactionController |
| * @see ServerPlatformBase#isJTAEnabled() |
| * @see ServerPlatformBase#disableJTA() |
| * @see ServerPlatformBase#initializeExternalTransactionController() |
| */ |
| @Override |
| public Class getExternalTransactionControllerClass() { |
| if (externalTransactionControllerClass == null){ |
| externalTransactionControllerClass = Oc4jTransactionController.class; |
| } |
| return externalTransactionControllerClass; |
| } |
| |
| /** |
| * INTERNAL: This method is used to unwrap the oracle connection wrapped by |
| * the application server. TopLink needs this unwrapped connection for certain |
| * Oracle Specific support. (ie TIMESTAMPTZ) |
| */ |
| @Override |
| public java.sql.Connection unwrapConnection(java.sql.Connection connection){ |
| Platform platform = getDatabaseSession().getDatasourceLogin().getDatasourcePlatform(); |
| if(platform.isOracle() && ((OraclePlatform)platform).canUnwrapOracleConnection()) { |
| return ((OraclePlatform)platform).unwrapOracleConnection(connection); |
| } else { |
| return super.unwrapConnection(connection); |
| } |
| } |
| |
| /** |
| * INTERNAL: |
| * Clears statement cache of the wrapper connection. |
| * Required by Oracle proxy authentication: currently connection statement cache |
| * becomes invalid on switching to/from proxy session. |
| * This method is called by OracleJDBC_10_1_0_2ProxyConnectionCustomizer |
| * before opening proxy session and before closing it. |
| */ |
| @Override |
| public void clearStatementCache(java.sql.Connection connection) { |
| Platform platform = getDatabaseSession().getDatasourceLogin().getDatasourcePlatform(); |
| if(platform.isOracle()) { |
| ((OraclePlatform)platform).clearOracleConnectionCache(connection); |
| } |
| } |
| } |