tree 24e1f1270c60f29a056c5dc3631a668c27a70b01
parent 85343d4a9b784e30eb62454b5a9dd4e5ffc8378b
author Andi Bur <andi.bur@gmail.com> 1465571036 +0200
committer Andi Bur <andi.bur@gmail.com> 1466166566 -0400

TreeEventBuffer: performance improvements

o added several methods on TreeEvent so that the internal rows must not
be copied:
  o containsNode()
  o hasNodes()
  o added TreeEvent.setNodes
  
o improved TreeEventBuffer.coalesceSameType
  (runs now in O(n) instead O(n^2))
  
o simplified TreeUtility.calculateCommonParentNode and added tests

Change-Id: I7e4751b117fb80d295f3457ab3f59ba5686d8c03
Reviewed-on: https://git.eclipse.org/r/75452
Tested-by: Hudson CI
Reviewed-by: Andi Bur <andi.bur@gmail.com>