org.apache.sandesha2.storage.jdbc.JDBCTransaction.java Source code

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Here is the source code for org.apache.sandesha2.storage.jdbc.JDBCTransaction.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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.apache.sandesha2.storage.jdbc;

import java.sql.*;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.sandesha2.storage.Transaction;
/*
 * Each transaction has its own DataBase connection with autocommit set to false
 * 
 * As there is no method to "release" a transaction, connections are closed on
 * commit or rollback.
 */

public class JDBCTransaction implements Transaction {
    private PersistentStorageManager pmgr = null;
    private Connection dbConnection = null;
    private boolean active = false;
    private Log log = LogFactory.getLog(getClass());

    public JDBCTransaction(PersistentStorageManager pmgr) {
        log.debug("new JDBCTransaction");
        try {
            this.pmgr = pmgr;
            dbConnection = pmgr.dbConnect();
            dbConnection.setAutoCommit(false);
            dbConnection.setTransactionIsolation(Connection.TRANSACTION_REPEATABLE_READ);
            active = true;
        } catch (Exception ex) {
        }
    }

    public Connection getDbConnection() {
        return dbConnection;
    }

    private void freeTransaction() {
        try {
            dbConnection.close();
            pmgr.removeTransaction();
        } catch (Exception ex) {
        }

    }

    public void commit() {
        log.debug("commit JDBCTransaction");
        try {
            dbConnection.commit();
            freeTransaction();
        } catch (Exception ex) {
        }
        active = false;
        pmgr.releaseTransactionLock();
    }

    public void rollback() {
        log.debug("rollback JDBCTransaction");
        try {
            dbConnection.rollback();
            freeTransaction();
        } catch (Exception ex) {
        }
        active = false;
        pmgr.releaseTransactionLock();
    }

    public boolean isActive() {
        return active;
    }

}