Transaction.java

package org.nutz.trans;

import java.sql.Connection;
import java.sql.SQLException;

import javax.sql.DataSource;

public abstract class Transaction {

    private int level;

    public int getLevel() {
        return level;
    }

    public void setLevel(int level) {
        if (this.level <= 0)
            this.level = level;
    }

    public abstract long getId();

    protected abstract void commit();

    protected abstract void rollback();

    public abstract Connection getConnection(DataSource dataSource) throws SQLException;

    public abstract void close();

}