jotmtransactionmanagerlookup.java

来自「用Java实现的23个常用设计模式源代码」· Java 代码 · 共 39 行

package net.sf.hibernate.transaction;

import java.util.Properties;

import javax.transaction.TransactionManager;

import net.sf.hibernate.HibernateException;

/**
 * TransactionManager lookup strategy for JOTM
 * @author Low Heng Sin
 */
public class JOTMTransactionManagerLookup implements TransactionManagerLookup {
	
	/**
	 * @see net.sf.hibernate.transaction.TransactionManagerLookup#getTransactionManager(Properties)
	 */
	public TransactionManager getTransactionManager(Properties props) throws HibernateException {
		try {
			Class clazz = Class.forName("org.objectweb.jotm.Current");
			return (TransactionManager) clazz.getMethod("getTransactionManager", null).invoke(null, null);
		}
		catch (Exception e) {
			throw new HibernateException( "Could not obtain JOTM transaction manager instance", e );
		}
	}
	
	public String getUserTransactionName() {
		return "java:comp/UserTransaction";
	}
	
}