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Spring Framework example source code file (LobCreatorUtils.java)

This example Spring Framework source code file (LobCreatorUtils.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Spring Framework tags/keywords

active, illegalstateexception, jta, jta, jtalobcreatorsynchronization, lobcreator, lobcreator, registering, registering, spring, spring, springlobcreatorsynchronization, transaction, transactionmanager, transactionsystemexception

The Spring Framework LobCreatorUtils.java source code

/*
 * Copyright 2002-2006 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.jdbc.support.lob;

import javax.transaction.Status;
import javax.transaction.TransactionManager;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import org.springframework.transaction.TransactionSystemException;
import org.springframework.transaction.support.TransactionSynchronizationManager;

/**
 * Helper class for registering a transaction synchronization for closing
 * a LobCreator, preferring Spring transaction synchronization and falling
 * back to plain JTA transaction synchronization.
 *
 * @author Juergen Hoeller
 * @since 2.0
 * @see SpringLobCreatorSynchronization
 * @see org.springframework.transaction.support.TransactionSynchronizationManager
 * @see JtaLobCreatorSynchronization
 * @see javax.transaction.Transaction#registerSynchronization
 */
public abstract class LobCreatorUtils {

	private static final Log logger = LogFactory.getLog(LobCreatorUtils.class);


	/**
	 * Register a transaction synchronization for closing the given LobCreator,
	 * preferring Spring transaction synchronization and falling back to
	 * plain JTA transaction synchronization.
	 * @param lobCreator the LobCreator to close after transaction completion
	 * @param jtaTransactionManager the JTA TransactionManager to fall back to
	 * when no Spring transaction synchronization is active (may be <code>null)
	 * @throws IllegalStateException if there is neither active Spring transaction
	 * synchronization nor active JTA transaction synchronization
	 */
	public static void registerTransactionSynchronization(
			LobCreator lobCreator, TransactionManager jtaTransactionManager) throws IllegalStateException {

		if (TransactionSynchronizationManager.isSynchronizationActive()) {
			logger.debug("Registering Spring transaction synchronization for LobCreator");
			TransactionSynchronizationManager.registerSynchronization(
			    new SpringLobCreatorSynchronization(lobCreator));
		}
		else {
			if (jtaTransactionManager != null) {
				try {
					int jtaStatus = jtaTransactionManager.getStatus();
					if (jtaStatus == Status.STATUS_ACTIVE || jtaStatus == Status.STATUS_MARKED_ROLLBACK) {
						logger.debug("Registering JTA transaction synchronization for LobCreator");
						jtaTransactionManager.getTransaction().registerSynchronization(
								new JtaLobCreatorSynchronization(lobCreator));
						return;
					}
				}
				catch (Throwable ex) {
					throw new TransactionSystemException(
							"Could not register synchronization with JTA TransactionManager", ex);
				}
			}
			throw new IllegalStateException("Active Spring transaction synchronization or active " +
			    "JTA transaction with specified [javax.transaction.TransactionManager] required");
		}
	}

}

Other Spring Framework examples (source code examples)

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