org.apache.druid.indexer.path

Interface UsedSegmentsRetriever

All Known Implementing Classes:

MetadataStoreBasedUsedSegmentsRetriever

public interface UsedSegmentsRetriever

Method Summary

Modifier and Type	Method and Description
Collection<DataSegment>	getUsedSegmentsForIntervals(String dataSource, List<org.joda.time.Interval> intervals, Segments visibility) Get all segments which may include any data in the interval and are marked as used.

Method Detail

getUsedSegmentsForIntervals

Collection<DataSegment> getUsedSegmentsForIntervals(String dataSource,
                                                    List<org.joda.time.Interval> intervals,
                                                    Segments visibility)
                                             throws IOException

Get all segments which may include any data in the interval and are marked as used. The order of segments within the returned collection is unspecified, but each segment is guaranteed to appear in the collection only once.

Parameters:

dataSource - The datasource to query

intervals - The intervals for which used segments are to be returned

visibility - Whether only visible or visible as well as overshadowed segments should be returned. The visibility is considered within the specified intervals: that is, a segment which is visible outside of the specified intervals, but overshadowed on the specified intervals will not be returned if Segments.ONLY_VISIBLE is passed. See more precise description in the doc for Segments.

Returns:

The DataSegments which include data in the requested intervals. These segments may contain data outside the requested interval.

Throws:

IOException