Package org.apache.druid.query

Class LeafSegmentsBundle

java.lang.Object

org.apache.druid.query.LeafSegmentsBundle

public class LeafSegmentsBundle
extends Object

Holder for decomposing a list of DataSegmentAndDescriptor into a list of 'active' SegmentReference for any segments which are already present in the segments cache, and the remaining list of DataSegmentAndDescriptor which must still be loaded on demand as well as any 'missing' SegmentDescriptor which are unavailable to load.

Constructor Summary

Constructors

Constructor	Description
LeafSegmentsBundle(ArrayList<SegmentReference> cachedSegments, ArrayList<DataSegmentAndDescriptor> loadableSegments, ArrayList<SegmentDescriptor> missingSegments)

Method Summary

Modifier and Type	Method	Description
void	closeCachedReferences()
ArrayList<SegmentReference>	getCachedSegments()	List of SegmentReference for segments which are already loaded in the segment cache.
ArrayList<DataSegmentAndDescriptor>	getLoadableSegments()	List of DataSegmentAndDescriptor for segments which are not current present in the segment cache.
ArrayList<SegmentDescriptor>	getMissingSegments()	List of SegmentDescriptor which are not available in the cache (and cannot be downloaded because on demand download is not enabled or a DataSegmentAndDescriptor was unavailable)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

LeafSegmentsBundle

public LeafSegmentsBundle(ArrayList<SegmentReference> cachedSegments,
 ArrayList<DataSegmentAndDescriptor> loadableSegments,
 ArrayList<SegmentDescriptor> missingSegments)

Method Details

getCachedSegments

public ArrayList<SegmentReference> getCachedSegments()

List of SegmentReference for segments which are already loaded in the segment cache. These must be closed when the caller is finished with them.

getLoadableSegments

public ArrayList<DataSegmentAndDescriptor> getLoadableSegments()

List of DataSegmentAndDescriptor for segments which are not current present in the segment cache. These must be loaded into the cache

getMissingSegments

public ArrayList<SegmentDescriptor> getMissingSegments()

List of SegmentDescriptor which are not available in the cache (and cannot be downloaded because on demand download is not enabled or a DataSegmentAndDescriptor was unavailable)

closeCachedReferences

public void closeCachedReferences()