coucbase connect 2015 体験談
TRANSCRIPT
Couchbase Connect2015
体験談
株式会社ゴーズ 齋藤隆
Couchbase MeetUP Tokyo - #142015-07-22
Takashisite Programmer / Designer
株式会社ゴーズhttp://www.g-ptr.com/
株式会社ゴーズhttp://www.g-ptr.com/
2015 / 06 / 02 – 04Livi’s Studium @ Santa Clara
http://connect15.couchbase.com/sessions/
CBC15 - KEYWORD
Offline First (Offline First is the new Mobile First / GE Software)
IoT / BigData / (Realtime) Analytics
N1QL ( JSON + SQL)
DEMO
©2015 Couchbase Inc. 24
WHAT ARE WE BUILDING?
©2015 Couchbase Inc. 25
WHAT ARE WE BUILDING?
airline_24 { "id": "24", "type": "airline", "iata": "AA", "callsign": "American Airlines", ]}
route_5966 { "id": "5966", "type": "route", "airlineid": "airline_24", "from": ”LAX", "to": ”SFO", "stops": "0", "schedule": [ …
]}
©2015 Couchbase Inc. 26
COMBINE ROUTE WITH AIRLINE
airline_24 { "id": "24", "type": "airline", "iata": "AA", "callsign": "American Airlines", ]}
route_5966 { "id": "5966", "type": "route", "airlineid": "airline_24", "from": ”LAX", "to": ”SFO", "stops": "0", "schedule": [ …
]}
1. Read route_5966 document from Couchbase2. Parse JSON3. Pull out “airlineid” field4. Read airline_24 document from Couchbase
5. Parse JSON6. Pull out “callsign”7. Display airline name8. Throw away 2 objects
©2015 Couchbase Inc. 27
COMBINE ROUTE WITH AIRLINE
airline_24 { "id": "24", "type": "airline", "iata": "AA", "callsign": "American Airlines", ]}
route_5966 { "id": "5966", "type": "route", "airlineid": "airline_24", "from": ”LAX", "to": ”SFO", "stops": "0", "schedule": [ …
]}
With Couchbase 4.0 and N1QL:
SELECT airline.callsign, route.from, route.to
FROM `travel-db` route
JOIN `travel-db` airline ON KEYS route.airlineid
WHERE route.from=`LAX` AND route.to=`SFO`
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UNNEST
route_5966 { "id": "5966", "type": "route", "airlineid": "airline_24", "from": ”LAX", "to": ”SFO", "stops": "0", "schedule": [ {"day": 1, "utc": "06:58:00", "flight": "AA348"}, {"day": 1, "utc": "09:30:00", "flight": "AA868"}, {"day": 1, "utc": "20:47:00", "flight": "AA483"},
{"day": 1, "utc": "06:58:00", "flight": "AA348"}, {"day": 2, "utc": "09:30:00", "flight": "AA868"}, {"day": 2, "utc": "20:47:00", "flight": "AA483"},
{"day": 3, "utc": "06:58:00", "flight": "AA348"}, {"day": 3, "utc": "09:30:00", "flight": "AA868"}, {"day": 3, "utc": "20:47:00", "flight": "AA483"},
... ]}
©2015 Couchbase Inc.
RETURN FLIGHTS FOR A PARTICULAR DAY
4. Foreach in “schedule”:a. Does it match requested day? Y/Nb. Does it match requested day? Y/Nc. Does it match requested day? Y/Nd. Does it match requested day? Y/Ne. Does it match requested day? Y/Nf. Does it match requested day? Y/Ng. Does it match requested day? Y/N
5. Display matching day, route and airline names
6. Throw away objects
For each requested route:
1. Read in “route” document from Couchbase:a. Instantiate objectb. Handle errorsc. Manage memory
2. Parse JSON:a. Map transcoderb. Manage versioningc. Handle missing values
3. Read in “schedule” objecta. Instantiate objectb. Handle errorsc. Manage memory
©2015 Couchbase Inc.
RETURN FLIGHTS FOR A PARTICULAR DAY
route_5966 { "id": "5966", "type": "route", "airlineid": "airline_24", "from": ”LAX", "to": ”SFO", "stops": "0", "schedule": [ {"day": 1, "utc": "06:58:00", "flight": "AA348"}, {"day": 1, "utc": "09:30:00", "flight": "AA868"}, {"day": 1, "utc": "20:47:00", "flight": "AA483"},
{"day": 1, "utc": "06:58:00", "flight": "AA348"}, {"day": 2, "utc": "09:30:00", "flight": "AA868"}, {"day": 2, "utc": "20:47:00", "flight": "AA483"},
SELECT airline.callsign, schedule.flight, schedule.utc, route.from, route.to
FROM `travel-sample` routeUNNEST route.schedule scheduleJOIN `travel-sample` airline ON KEYS route.airlineidWHERE route.from=`LAX` AND route.to=`SFO` AND schedule.day= `1`
まとめ（来年もやるのかわかりませんが）
来年はみなさんもぜひご参加を
株式会社ゴーズhttp://www.g-ptr.com/
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