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Alexander Shoshin commented on FLINK-3133: ------------------------------------------ Sorry, I wanted to take this issue but I am not able to take it at the moment. Nevertheless I am sure our discussion will be very helpfull for the next assignee. > Introduce collect()/count()/print() methods in DataStream API > ------------------------------------------------------------- > > Key: FLINK-3133 > URL: https://issues.apache.org/jira/browse/FLINK-3133 > Project: Flink > Issue Type: Improvement > Components: DataStream API, Streaming > Affects Versions: 0.10.0, 1.0.0, 0.10.1 > Reporter: Maximilian Michels > Fix For: 1.0.0 > > > The DataSet API's methods {{collect()}}, {{count()}}, and {{print()}} should > be mirrored to the DataStream API. > The semantics of the calls are different. We need to be able to sample parts > of a stream, e.g. by supplying a time period in the arguments to the methods. > Users should use the {{JobClient}} to retrieve the results. > {code:java} > StreamExecutionEnvironment env = > StramEnvironment.getStreamExecutionEnvironment(); > DataStream<DataType> streamData = env.addSource(..).map(..); > JobClient jobClient = env.executeWithControl(); > Iterable<DataType> sampled = jobClient.sampleStream(streamData, > Time.seconds(5)); > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)