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MAGIK Meetings Minutes
This document contains meeting minutes based on the discussion about the MAGIK development.
17/05/2013
Attendes: Paramita, Ognjen
Topic: Start of the MAGIK 3 implementation
Important Steps (First to Do)
Develop and Implement Controller Modul
(First attempt) We will create a external module (a web service) that will have a vector of connections of max size n. Once a new MAGIK instance request a db connection we use this vector as FIFO structure and provide a new connection by killing the oldest one.
The problem 1 is that an instance and the controller have to communicate via object reference of new established db connection (but how?)
The problem 2 is that even if we have the above described mechanism how we can be sure that the object created with connection = DriverManager.getConnection(url, props);
we can kill? By connection.close()
(Second attempt) Use Hibernate for saving and loading on the level of schemas (hopefully it will do all necessary job of closing unused connections for us) - <fc #FF0000>We try this one</fc>
Hibernate
Query Approximizations
Develop and implement algorithm that computes specializations of max size k for an incomplete query (TuProlog - to be investigated)
Develop and implement algorithm that computes generalization for an incomplete query (DLV)
Integrate VLDB and CIKM version
Issue 1: Reasoning with one query at the time (CIKM version) or several queries at once (as in VLDB version)
Issue 2: TC Suggestion at the main page or move it to the analytic page with query approximizations
Do Later
TC-statements
Look and feel (low priority)
17/05/2013 (Ognjen and Werner)
Try to create a concrete task for Alex that he can work on
21/05/2013
Attendees: Alex, Ognjen
Topic: Introducing double quotes in the encoding of DLV (Ended in 28 May)
Replace constants in
SQL (unders single quotes) into double quotes in the CQ version of that query
Introduce single quotes constants into TC-statements. Then when they are parsed single quotes are replaced with the double quotes
Approach: First test within the JUnit and then implement it in the code
Topic: Generalization algorithm