Github user arunmahadevan commented on a diff in the pull request:
https://github.com/apache/storm/pull/2089#discussion_r113394121
--- Diff:
storm-client/src/jvm/org/apache/storm/topology/TopologyBuilder.java ---
@@ -353,6 +421,31 @@ public void setStateSpout(String id, IRichStateSpout
stateSpout, Number parallel
}
/**
+ * Define a new spout in this topology.
+ *
+ * @param id the id of this component. This id is referenced by other
components that want to consume this spout's outputs.
+ * @param supplier lambda expression that implements tuple generating
for this spout
+ * @throws IllegalArgumentException if {@code parallelism_hint} is not
positive
+ */
+ public SpoutDeclarer setSpout(String id, SerializableSupplier<Object>
supplier) throws IllegalArgumentException {
--- End diff --
may be better:
```java
public SpoutDeclarer setSpout(String id, SerializableSupplier<?> supplier)
throws IllegalArgumentException
```
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