Github user vasia commented on the pull request: https://github.com/apache/flink/pull/847#issuecomment-118173012 Hi @shghatge! Thank you for the update :) I left some comments inline. There are still some formatting issues in the code. Please, carefully go through your changes and try to be consistent. Also, there are still several warning regarding types, unused annotations, unused variables. Can you please try to remove them? Your IDE should have a setting that gives you the list of warnings. Regarding the tests, better create new test files for your methods, since you need to test with files and currently other tests use `collect()`. Finally, I find the `types()` methods a bit confusing. Could we maybe have separate types methods for the vertices and edges? e.g. `typesEdges(keyType, valueType)`, `typesEdges(keyType)`, `typesVertices(keyType, valueType)` and `typesVertices(keyType)`?
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