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Posted to user@flink.apache.org by hagersaleh <lo...@yahoo.com> on 2015/07/20 23:36:15 UTC

I want use count() method in this link but when write but not found in dataset why

I want use count() method in this link but when write 
DataSet<Customer> customers = getCustomerDataSet(env,mask,l,map);

Long i=customers.count();

not found count() in dataset why

https://ci.apache.org/projects/flink/flink-docs-master/api/java/org/apache/flink/api/java/DataSet.html#count%28%29



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