add more comments for Vertex abstract class

git-svn-id: https://hyracks.googlecode.com/svn/branches/fullstack_staging@1994 123451ca-8445-de46-9d55-352943316053
3 files changed
tree: 399d89d32910023dd830e28b4643bd768caadc46
  1. algebricks/
  2. hyracks/
  3. pom.xml
  4. pregelix/