Hola Guys!
sorry for the previous message not been complete please ignore it, i
typed to fast for my dexterity level and must have hit "ctrl-enter" ;)
building on top of Aaron HighLevelStorage PoC i used the following
tables in HBase
+----------------+
| fedora_objects |
+----------------+
| key: PID |
| label |
| state |
| owner_id |
| c_date |
| m_date |
| content_raw |
+----------------+
But im not quite sure what i have to search through in order for
FieldSearch.findObjects() to return the appropriate results.
It seems FieldSearchSQLImpl searches throught these fields:
{"pid", "label", "state", "ownerId", "cDate", "mDate",
"dcmDate", "dcTitle", "dcCreator", "dcSubject",
"dcDescription", "dcPublisher", "dcContributor", "dcDate",
"dcType", "dcFormat", "dcIdentifier", "dcSource",
"dcLanguage", "dcRelation", "dcCoverage", "dcRights"}
but im not quite sure on how to find these properties on a
DigitalObject. Are these guarantueed to be in
DigitalObject.getExtProperties()?
if you wanna take a look at what im doing i have forked Aaron's PoC on
github, but it's still very crude and misses essential parts, has no
locking mechanism or concurrency gurarantuees:
https://github.com/smeg4brains/fcrepo/tree/hlstore_hbase_poc
with those storage impls:
https://github.com/smeg4brains/fcrepo/tree/hlstore_hbase_poc/fcrepo-hlstore/src/main/java/org/fcrepo/server/storage/highlevel/hadoop
--
Frank Asseg
ePublishing & eScience
Development & Applied Research
Phone +49 7247-808-515
Fax +49 7247 808-133
[email protected]
FIZ Karlsruhe – Leibniz Institute for Information Infrastructure
Hermann-von-Helmholtz-Platz 1
76344 Eggenstein-Leopoldshafen, Germany
http://www.fiz-karlsruhe.de/
-------------------------------------------------------
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Sitz der Gesellschaft: Eggenstein-Leopoldshafen, Amtsgericht Mannheim HRB
101892.
Geschäftsführerin: Sabine Brünger-Weilandt.
Vorsitzender des Aufsichtsrats: MinDirig Dr. Thomas Greiner.
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