Add flush() to IFrameWriter

This change introduces flush() method in frame writers. It is
intended to be used for long running jobs (Feeds) to flush contents
of frames all the way to storage.

Change-Id: I85424bab7965b71aac709280af066e1655457aa3
Reviewed-on: https://asterix-gerrit.ics.uci.edu/584
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Murtadha Hubail <hubailmor@gmail.com>
87 files changed
tree: b108658ab74c42c37b18b5caf65096ceefb27ddc
  1. .gitignore
  2. DISCLAIMER
  3. LICENSE
  4. NOTICE
  5. algebricks/
  6. hyracks/
  7. pom.xml
  8. src/