Package storm.trident.operation.builtin

Examples of storm.trident.operation.builtin.FilterNull

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        topology.newDRPCStream("words", drpc)
                .each(new Fields("args"), new Split(), new Fields("word"))
                .groupBy(new Fields("word"))
                .stateQuery(wordCounts, new Fields("word"), new MapGet(), new Fields("count"))
                .each(new Fields("count"), new FilterNull())
                //.aggregate(new Fields("count"), new Sum(), new Fields("sum"))
                ;
       
        return topology.build();
    }
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        topology.newDRPCStream("words", drpc)
                .each(new Fields("args"), new Split(), new Fields("word"))
                .groupBy(new Fields("word"))
                .stateQuery(wordCounts, new Fields("word"), new MapGet(), new Fields("count"))
                .each(new Fields("count"), new FilterNull())
                //.aggregate(new Fields("count"), new Sum(), new Fields("sum"))
                ;
       
        return topology.build();
    }
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        LocalDRPC client = new LocalDRPC();
        topology.newDRPCStream("words", client).each(new Fields("args"), new Split(), new Fields("word"))
                .groupBy(new Fields("word"))
                .stateQuery(wordCounts, new Fields("word"), new MapGet(), new Fields("count"))
                .each(new Fields("count"), new FilterNull())
                .aggregate(new Fields("count"), new Sum(), new Fields("sum"));

        LocalCluster cluster = new LocalCluster();
        cluster.submitTopology("test", config, topology.build());
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        new Split(), new Fields("word")).groupBy(new Fields("word")).persistentAggregate(new MemoryMapState.Factory(),
        new Count(), new Fields("count")).parallelismHint(16);

    topology.newDRPCStream("words", drpc).each(new Fields("args"), new Split(), new Fields("word")).groupBy(new Fields(
        "word")).stateQuery(wordCounts, new Fields("word"), new MapGet(), new Fields("count")).each(new Fields("count"),
        new FilterNull()).aggregate(new Fields("count"), new Sum(), new Fields("sum"));
    return topology.build();
  }
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        new Split(), new Fields("word")).groupBy(new Fields("word")).persistentAggregate(new MemoryMapState.Factory(),
        new Count(), new Fields("count")).parallelismHint(16);

    topology.newDRPCStream("words", drpc).each(new Fields("args"), new Split(), new Fields("word")).groupBy(new Fields(
        "word")).stateQuery(wordCounts, new Fields("word"), new MapGet(), new Fields("count")).each(new Fields("count"),
        new FilterNull()).aggregate(new Fields("count"), new Sum(), new Fields("sum"));
    return topology.build();
  }
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        topology.newDRPCStream("words", drpc)
                .each(new Fields("args"), new Split(), new Fields("word"))
                .groupBy(new Fields("word"))
                .stateQuery(wordCounts, new Fields("word"), new MapGet(), new Fields("count"))
                .each(new Fields("count"), new FilterNull())
                .aggregate(new Fields("count"), new Sum(), new Fields("sum"))
                ;
        return topology.build();
    }
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        topology
                .newDRPCStream("count_per_actors", drpc)
                .each(new Fields("args"), new Split(" "), new Fields("actor"))
                .groupBy(new Fields("actor"))
                .stateQuery(countState, new Fields("actor"), new MapGet(), new Fields("individual_count"))
                .each(new Fields("individual_count"), new FilterNull())
                .aggregate(new Fields("individual_count"), new Sum(), new Fields("count"));

        // For how to call DRPC calls, go back to the main method

        return topology.build();
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Related Classes of storm.trident.operation.builtin.FilterNull

  • com.hmsonline.storm.cassandra.bolt.CassandraMapStateTest
  • storm.starter.trident.TridentWordCount
  • trident.TridentUpdater
  • trident.TridentWordCount
  • tutorial.storm.trident.Part04_BasicStateAndDRPC
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