Github user xmpy commented on the pull request: https://github.com/apache/metamodel/pull/86#issuecomment-170362357 @kaspersorensen Thank you for your remarks :) I do followings things in these 3 commits. 1. remove .classpath 2. make mongodb-common module work for both 2.x and 3.x Before this commit, we have a `public static Row toRow(Document document, DataSetHeader header)` function in the MongoDBUtils in this common module. However, this `Document`, which is the ` org.bson.Document` is only in the mongodb driver 3.x. So I do a little things to remove functions which contain `Document` . I've added 'scoped' in pom. However, I think maybe there is some risk in it. For developer, in the IDE such as Eclipse, Eclipse will still think we using mongodb 3.x, so developer maybe write wrong functions which can not work in both mongodb 2.x and mongodb 3.x. 3. move unclear function convertArrayToList to right place This function is used for converting array `[1,3,4]` to List. Here is the problem code in the test ds = dataContext.query().from(getCollectionName()).select("id").and("name").where("id").in(2, 6, 8, 9) In the `in` where condition, metamodel will convert `in` parameter to an array object `[2,6,8,9]`. However, in the mongodb 3.x, the query Document class currently supports only List, not support array, like in this bug https://jira.mongodb.org/browse/JAVA-1894.
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