private Boolean isSourceAndSinkMongoDB () {
      // if source and sink are a MongoDB database, return true
      if (
          (MONGODB.isTheManagerTypeOf(options, DataSourceType.SINK) || MONGODBSRV.isTheManagerTypeOf(options, DataSourceType.SINK)) &&
              (MONGODB.isTheManagerTypeOf(options, DataSourceType.SOURCE) || MONGODBSRV.isTheManagerTypeOf(options, DataSourceType.SOURCE))
      ) {
         return true;
      }
      return false;
   }
Constructs the SqlManager.

@param opts the ReplicaDB ToolOptions describing the user's requested action.
src/main/java/org/replicadb/manager/MongoDBManager.java