Github user PramodSSImmaneni commented on a diff in the pull request:
https://github.com/apache/incubator-apex-core/pull/313#discussion_r61790619
--- Diff: api/src/main/java/com/datatorrent/api/Component.java ---
@@ -116,4 +116,13 @@ public boolean equals(Object obj)
}
+ /**
+ * Marker interface for the Node in the DAG. Any object which can be
added as a Node in the DAG
+ * needs to implement this interface.
+ */
+ interface Vertex
--- End diff --
How about moving it into DAG as this is specific to DAG. Component is more
general and is implemented by artifacts that are not part of DAG such as
security components.
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