{"blog_title":"@katzchang.contexts","provider_url":"https://hatena.blog","title":"Box\u306b\u3064\u3044\u3066\u8abf\u3079\u3066\u307f\u305f","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkatzchang.hatenadiary.org%2Fentry%2F20101110%2Fp1\" title=\"Box\u306b\u3064\u3044\u3066\u8abf\u3079\u3066\u307f\u305f - @katzchang.contexts\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["scala","lift"],"type":"rich","author_name":"katzchang","url":"https://katzchang.hatenadiary.org/entry/20101110/p1","blog_url":"https://katzchang.hatenadiary.org/","width":"100%","image_url":null,"version":"1.0","description":"Box\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30b3\u30f3\u30c6\u30ca\u306e\u4e00\u3064\u3067\u3001\u8981\u3059\u308b\u306bscala.Option\u3063\u307d\u3044\u3082\u306e\u3002Lift\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u983b\u51fa\u306a\u306e\u3067\u3001\u8abf\u3079\u3066\u307f\u305f\u3002 Lift 2.1\u524d\u63d0\u3002 object Box class Box Box.apply Box\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u308b\u30d5\u30a1\u30af\u30c8\u30ea\u3002 Box(someValue) *1\u3067\u3001box\u306a\u4f55\u304b\u304c\u8fd4\u3063\u3066\u304f\u308b\u3002 \u4efb\u610f\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\uff1a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u5024\u3092\u6301\u3064\u306a\u3089Full(value)\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304cnull\u306a\u3089Empty \u30ea\u30b9\u30c8\u3067\uff1a\u5024\u304c\u3042\u308b\u306a\u3089Full(\u30ea\u30b9\u30c8)\u3001Nil\uff08\u7a7a\u30ea\u30b9\u30c8\uff09\u306a\u3089Empty Option\u3067\uff1aSome(value)\u306a\u3089Full(value)\u3001None\u306a\u3089Empt\u2026","height":"190","author_url":"https://blog.hatena.ne.jp/katzchang/","published":"2010-11-10 00:00:00"}