CompactionSegmentIterator (druid-server 29.0.1 API)

All Superinterfaces:

Iterator<SegmentsToCompact>

All Known Implementing Classes:

NewestSegmentFirstIterator
```
public interface CompactionSegmentIterator
extends Iterator<SegmentsToCompact>
```
Segments in the lists which are the elements of this iterator are sorted according to the natural segment order (see DataSegment.compareTo(org.apache.druid.timeline.DataSegment)).

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Map<String,CompactionStatistics>`	`totalCompactedStatistics()`	Return a map of dataSourceName to CompactionStatistics.
`Map<String,CompactionStatistics>`	`totalSkippedStatistics()`	Return a map of dataSourceName to CompactionStatistics.

Methods inherited from interface java.util.Iterator
forEachRemaining, hasNext, next, remove

- Method Detail
  - totalCompactedStatistics
```
Map<String,CompactionStatistics> totalCompactedStatistics()
```
    Return a map of dataSourceName to CompactionStatistics. This method returns the aggregated statistics of segments that was already compacted and does not need to be compacted again. Hence, segment that were not returned by the Iterator.next() becuase it does not needs compaction. Note that the aggregations returned by this method is only up to the current point of the iterator being iterated.
  - totalSkippedStatistics
```
Map<String,CompactionStatistics> totalSkippedStatistics()
```
    Return a map of dataSourceName to CompactionStatistics. This method returns the aggregated statistics of segments that was skipped as it cannot be compacted. Hence, segment that were not returned by the Iterator.next() becuase it cannot be compacted. Note that the aggregations returned by this method is only up to the current point of the iterator being iterated.