BIND 10 #1061: introduce DatabaseClient (or DatabaseDataSourceClient)

[BIND 10 Development]

#1061: introduce DatabaseClient (or DatabaseDataSourceClient)
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                   Reporter:         |                 Owner:  jinmei
  jinmei                             |                Status:  reviewing
                       Type:  task   |             Milestone:
                   Priority:  major  |  Sprint-20110816
                  Component:  data   |            Resolution:
  source                             |             Sensitive:  0
                   Keywords:         |           Sub-Project:  DNS
            Defect Severity:  N/A    |  Estimated Difficulty:  5.0
Feature Depending on Ticket:         |           Total Hours:  0
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Comment (by jinmei):

 Replying to [comment:14 vorner]:

 > > After thinking about it more, I came up with another possible name
 > > "DatabaseAccessor".  It may share the same concern as that for the
 > > original "DatabaseConnection", but would this one perhaps sound
 > > better (while addressing my own concerns)?
 > >
 > > Or is there anything that can better address both concerns?
 >
 > Well, I used Abstraction, because I couldn't come with anything better,
 Accessor looks slightly better than that. I believe it addresses Stephens
 concern as well, as database accessor isn't something commonly used to
 name something. So I used your idea.

 Okay, then the branch is basically ready for merge, but I noticed some
 of the variables and test case names still contain "conn" etc.  They
 should better be renamed accordingly.  I don't think we need another
 cycle of review just for that.  Once the changed code passes compile
 it should be able to be merged.

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Ticket URL: <http://bind10.isc.org/ticket/1061#comment:15>
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