如何创建同时为Redis缓存(NoSQL)和Sybase ASE (关系数据库)服务的单个java域类？

import redis.clients.jedis.Jedis;

public class CacheDatabaseService {
    private Jedis jedis;

    public CacheDatabaseService() {
        // 初始化Redis连接
        jedis = new Jedis("localhost");
    }

    public String getFromCache(String key) {
        return jedis.get(key);
    }

    public void putInCache(String key, String value) {
        jedis.set(key, value);
    }
}

import java.sql.*;

public class CacheDatabaseService {
    private Connection connection;

    public CacheDatabaseService() {
        // 初始化数据库连接
        String url = "jdbc:sybase:Tds:host:port/database";
        String username = "username";
        String password = "password";
        try {
            connection = DriverManager.getConnection(url, username, password);
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    public ResultSet getFromDatabase(String query) throws SQLException {
        Statement statement = connection.createStatement();
        return statement.executeQuery(query);
    }

    public void saveToDatabase(String query) throws SQLException {
        Statement statement = connection.createStatement();
        statement.executeUpdate(query);
    }
}

public class MyApp {
    public static void main(String[] args) {
        CacheDatabaseService service = new CacheDatabaseService();

        // 从缓存获取数据
        String dataFromCache = service.getFromCache("key");

        // 存储数据到缓存
        service.putInCache("key", "value");

        // 从数据库获取数据
        ResultSet dataFromDatabase = service.getFromDatabase("SELECT * FROM table");

        // 将数据保存到数据库
        service.saveToDatabase("INSERT INTO table (column1, column2) VALUES ('value1', 'value2')");
    }
}