KeyAccess 是一个轻量级的对象关系映射框架（ORM），利用现有数据库生成对象模型。

示例代码：

    // All artists
    List artists = Artist.queryObjects(conn);

    // Artists with a good rating
    List newArtists = Artist.queryObjects(conn, "rating > 4");

    // Get the number of classical albums
    int numClassicalAlbums = Album.queryCount(conn, "type = ‘CLASSICAL’ ");    

    // Load single object by one or more primary keys (vararg)
    Artist artist = Artist.queryObjectByKey(conn, 294);

    // Load all objects, but not into a list: call a callback function for each object instead.
    // This can dramatically reduce memory requirements if you need to process
    // thousands of objects. There is also a version available where you can
    // supply a where clause.
    Artist.queryObjects(conn, new IObjectLoadHandler()
    {
        public void onLoad(Object obj)
        {
            System.out.println("Artist: "+ ((Artist)obj).getName());
        }
    });

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