CouchDB Implementation
CouchDB is an Apache OpenSource project. It is Damien Katz's brain child and has a number of very attractive features based on very cool technologies. Such as ... RESTful API Schema-less document store (document in JSON format) Multi-Version-Concurrency-Control model User-defined query structured as map/reduce Incremental Index Update mechanism Multi-Master Replication model Written in Erlang (Erl
DBI ã‚’ãƒãƒƒã‚¯ã‚¨ãƒ³ãƒ‰ã«ã—㟠CouchDB ã¿ãŸã„ãªã® - 酒日記 ã¯ã¦ãªæ”¯åº—
CouchDB ã¯é¢ç™½ã„ã®ã§ã™ãŒã€Erlang ã§æ›¸ã‹ã‚ŒãŸ daemon ã‚’å‹•ã‹ã™å¿…è¦ãŒã‚ã‚‹ã®ã§ã€ç’°å¢ƒã«ã‚ˆã£ã¦ã¯ä½¿ã„ã«ãã„。 ã¨ã„ã†ã“ã¨ã§ã€Perl + DBI ã®ã¿ã§ä¼¼ãŸã‚ˆã†ãªå‹•ä½œã‚’ã™ã‚‹ã‚‚ã®ã‚’作ã£ã¦ã¿ã¾ã—ãŸã€‚daemon ã˜ã‚ƒãªãã¦ã€Perl ã‹ã‚‰ç›´æŽ¥ DB を扱ã†ãƒ©ã‚¤ãƒ–ラリã§ã™ã€‚ Coderepos ã«ç½®ãã¾ã—ãŸã€‚http://svn.coderepos.org/share/lang/perl/DBIx-CouchLike/trunk ã§ãã‚‹ã“ã¨ã¯å˜ç´”。 (key => ä»»æ„ã®æ§‹é€ ã® hash ref) ã® CRUD CouchDB ã½ã„ map / reduce 対応ã—ã¦ã„ã‚‹ DBD ã¯ã¨ã‚Šã‚ãˆãš SQLite 㨠PostgreSQL ã§ã€‚ CRUD use DBIx::CouchLike; use DBI; $dbh = DBI->connect("dbi:SQLite:dbna
CouchDBã«è§¦ã‚Œã¦ã¿ãŸ
èžãã¨ã“ã‚ã«ã‚ˆã‚‹ã¨ï¼ŒCouchDB ã®é…力ã£ã¦ã®ã¯ï¼Œãƒ‰ã‚ュメント指å‘ã§ã‚ã£ãŸã‚Šï¼ŒMap/Reduce ã§ã‚ã£ãŸã‚Šï¼Œãã®è¾ºã‚Šã«ã‚るらã—ã„ã®ã§ã™ãŒï¼Œãƒœã‚¯ã¯ã¾ã よã分ã‹ã£ã¦ã„ã¾ã›ã‚“．ã“ã®ã‚¨ãƒ³ãƒˆãƒªã§ã¯ï¼Œå¾Œè¿°ã®ç›®çš„ã‚’æžœãŸã™ãŸã‚ã«ï¼ŒCouchDB をサーãƒã«ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ã¦å‹•ã‹ã—ã¦ã¿ã¦ï¼Œæ°¸ç¶šåŒ–ãƒãƒƒã‚·ãƒ¥ã¨ã—ã¦åˆ©ç”¨ã™ã‚‹ãŸã‚ã«ï¼Œå€¤ã®æ ¼ç´ã¨å–å¾—ã‚’ã‚„ã£ã¦ã¿ãŸï¼Œã£ã¦ã¨ã“ã‚ã¾ã§æ‰±ã„ã¾ã™ï¼Žãã®å…ˆã®è©±ã¯ã‚¨ãƒ³ãƒˆãƒªã‚’改ã‚ã¦ã¾ãŸä»Šåº¦ï¼Ž 目的 よã，cron ãªã‚“ã‹ã§å®šæœŸå®Ÿè¡Œã•ã›ã‚‹ã‚¹ã‚¯ãƒªãƒ—トã®ä¸ã§ï¼Œå‰å›žå®Ÿè¡Œæ™‚ã®æƒ…å ±ã‚’ãƒ•ã‚¡ã‚¤ãƒ«ã«ä¿æŒã•ã›ãŸã‚Šã—ã¦ã„る．ã“ã‚Œã ã¨ã‚¹ã‚¯ãƒªãƒ—トを実行ã•ã›ã‚‹ãƒžã‚·ãƒ³ãŒå¤‰ã‚ã£ãŸã¨ãã«ãã®ãƒ•ã‚¡ã‚¤ãƒ«ã‚‚忘れãšã«ç§»å‹•ã•ã›ãªãゃã„ã‘ãªã„ã—，複数マシンã§å®Ÿè¡Œã•ã›ã‚‹ã‚¹ã‚¯ãƒªãƒ—トã¨ã‚‚ãªã‚‹ã¨ï¼Œå”調ãŒå¤§å¤‰ï¼Žãã“ã§ï¼Œæƒ…å ±ã‚’ä¿æŒã™ã‚‹ç®‡æ‰€ã‚’ã²ã¨ã¤ã«ã—，ã‹ã¤ï¼Œã©ã®ãƒžã‚·ãƒ³ã‹ã‚‰ã§ã‚‚æƒ…å ±ã‚’èªã¿æ›¸ãã§ãる仕組ã¿ã‚’用æ„ã—，ファイルã«ä¿æŒã•ã›ãªã„よã†ã«
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