MergeableScanTask

Type Parameters:: ThisT - the child Java API class

All Superinterfaces:: ScanTask, Serializable

public interface MergeableScanTask<ThisT> extends ScanTask

A scan task that can be potentially merged with other scan tasks.

Method Summary

Modifier and Type

Method

Description

boolean

canMerge(ScanTask other)

Checks if this task can merge with a given task.

ThisT

merge(ScanTask other)

Merges this task with a given task.

Methods inherited from interface org.apache.iceberg.ScanTask
asCombinedScanTask, asDataTask, asFileScanTask, estimatedRowsCount, filesCount, isDataTask, isFileScanTask, sizeBytes

Method Details
- canMerge
  
  boolean canMerge(ScanTask other)
  
  Checks if this task can merge with a given task.
  
  Parameters:
  
  other - another task
  
  Returns:
  
  whether the tasks can be merged
- merge
  
  ThisT merge(ScanTask other)
  
  Merges this task with a given task.
  Note this method will be called only if canMerge(ScanTask) returns true.
  
  Parameters:
  
  other - another task
  
  Returns:
  
  a new merged task