eco-heron-examples/src/java/org/apache/heron/examples/eco/heron_stateful_windowing.yaml

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name: "stateful-windowing"
type: "heron"

config:
  topology.workers: 1
  topology.reliability.mode: "EFFECTIVELY_ONCE"

components:

  - id: "windowLength"
    className: "org.apache.heron.api.bolt.BaseWindowedBolt$Count"
    constructorArgs:
      - 5

  - id: "slidingInterval"
    className: "org.apache.heron.api.bolt.BaseWindowedBolt$Count"
    constructorArgs:
      - 3

spouts:
  - id: "integer-spout"
    className: "org.apache.heron.examples.eco.StatefulNumberSpout"
    parallelism: 1

bolts:
  - id: "stateful-window-sum-bolt"
    className: "org.apache.heron.examples.eco.StatefulWindowSumBolt"
    configMethods:
      - name: "withWindow"
        args: [ref: "windowLength", ref: "slidingInterval"]
    parallelism: 1


streams:
  - from: "integer-spout"
    to: "stateful-window-sum-bolt"
    grouping:
      type: SHUFFLE