tree 0110271bfab102f0b861dcde052628f45dbe0e16
parent 9243f70bec8db8ad8c831947c6590a2aa59b6669
author Pavlin Radoslavov <pavlin@onlab.us> 1385432567 -0800
committer Pavlin Radoslavov <pavlin@onlab.us> 1385432567 -0800

Bug fix to allow FlowId of 0.

* Added methods FlowId.isValid() and FlowEntryId.isValid()
* Change the default values of FlowId and FlowEntryId to -1 (invalid)
* Use the above isValid() methods as appropriate instead of explicitly
  comparing the IDs to hard-coded values.