public MyConnection implements Connection,MyFunc {
private Connection m_connection = null;

public MyConnection(Connection connection) {
m_connnection = connection;
}

//增加新的方法,来自MyFunc
public Timestamp getSystemTime() {
//......
}

//覆盖已经存在的方法
public void setAutoCommit(Boolean autoCommit) throws SQLException {
//......
}

//实现其它的方法
public Boolean getAutoCommit() throws SQLException {
return m_connection.getAutoCommit();
}

//......

}