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https://reviews.apache.org/r/35047/
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Review request for drill, Mehant Baid and Parth Chandra.


Bugs: DRILL-2089
    https://issues.apache.org/jira/browse/DRILL-2089


Repository: drill-git


Description
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Split original Driver class into new Driver and DriverImpl classes (to remove
implementation details from JDBC's published interface (i.e., extension of
Avatica UnregisteredDriver)):
    
Moved most of original Driver to new DriverImpl.  (Excluded registration code.)
    
Created new Driver class:
- implementing java.sql.Driver (not extending Avatica UnregisteredDriver)
- providing java.sql.Driver methods via delegation to a private DriverImpl instance (not via extension)
- having driver registration code
    
Updated internal references to Driver to DriverImpl.  [DrillConnectionImpl,
DrillFactory, and DrillJdbc41Factory]


Diffs
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  exec/jdbc/src/main/java/org/apache/drill/jdbc/DrillConnectionImpl.java 5f82054 
  exec/jdbc/src/main/java/org/apache/drill/jdbc/DrillFactory.java c674f8e 
  exec/jdbc/src/main/java/org/apache/drill/jdbc/DrillJdbc41Factory.java 93fe59d 
  exec/jdbc/src/main/java/org/apache/drill/jdbc/Driver.java 55453e8 
  exec/jdbc/src/main/java/org/apache/drill/jdbc/DriverImpl.java PRE-CREATION 

Diff: https://reviews.apache.org/r/35047/diff/


Testing
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Ran existing tests.  (With parts 1 through 7 together.)


Thanks,

Daniel Barclay