egor-ryashin commented on a change in pull request #7306: Reconcile terminology
and method naming to 'used/unused segments'; Rename MetadataSegmentManager to
MetadataSegments
URL: https://github.com/apache/incubator-druid/pull/7306#discussion_r272328362
##########
File path:
core/src/main/java/org/apache/druid/timeline/VersionedIntervalTimeline.java
##########
@@ -115,6 +122,32 @@ public static void addSegments(
return allTimelineEntries;
}
+ /**
+ * Returns a lazy collection with all objects in this
VersionedIntervalTimeline to be used for iteration or {@link
+ * Collection#stream()} transformation. The order of objects in this
collection is unspecified.
+ *
+ * Note: iteration over the returned collection may not be as trivially
cheap as, for example, iteration over an
+ * ArrayList. Try (to some reasonable extent) to organize the code so that
it iterates the returned collection only
+ * once rather than several times.
+ */
+ public Collection<ObjectType> iterateAllObjects()
+ {
+ return CollectionUtils.createLazyCollectionFromStream(
+ () -> allTimelineEntries
Review comment:
`allTimelineEntries` makes me think there's another collection with a subset
of "all", but it isn't.
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