SegmentLineageBasedSegmentPreSelector (Pinot Broker 0.12.1 API)

java.lang.Object
- org.apache.pinot.broker.routing.segmentpreselector.SegmentLineageBasedSegmentPreSelector

All Implemented Interfaces:

SegmentPreSelector
```
public class SegmentLineageBasedSegmentPreSelector
extends Object
implements SegmentPreSelector
```
Segment lineage based segment pre-selector This pre-selector reads the segment lineage metadata and filters out either merged segments or original segments to make sure that the final segments contain no duplicate data.

Constructor Summary

Constructors
Constructor	Description
`SegmentLineageBasedSegmentPreSelector(String tableNameWithType, org.apache.helix.store.zk.ZkHelixPropertyStore<org.apache.helix.zookeeper.datamodel.ZNRecord> propertyStore)`

Method Summary

Modifier and Type Method Description

Set<String> preSelect(Set<String> onlineSegments)
Pre-selects the online segments to filter out the unnecessary segments.
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - SegmentLineageBasedSegmentPreSelector
```
public SegmentLineageBasedSegmentPreSelector(String tableNameWithType,
                                             org.apache.helix.store.zk.ZkHelixPropertyStore<org.apache.helix.zookeeper.datamodel.ZNRecord> propertyStore)
```
- Method Detail
  - preSelect
```
public Set<String> preSelect(Set<String> onlineSegments)
```
    Description copied from interface: SegmentPreSelector
    
    Pre-selects the online segments to filter out the unnecessary segments. This method might modify the online segment set passed in.
    
    Specified by:
    
    preSelect in interface SegmentPreSelector