ScanTaskGroup

Type Parameters:

T - the type of scan tasks

All Superinterfaces:

ScanTask, java.io.Serializable

All Known Subinterfaces:

CombinedScanTask

All Known Implementing Classes:

BaseCombinedScanTask, BaseScanTaskGroup
```
public interface ScanTaskGroup<T extends ScanTask>
extends ScanTask
```
A scan task that may include partial input files, multiple input files or both.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default int`	`filesCount()`	The number of files that will be opened by this scan task.
`default long`	`sizeBytes()`	The number of bytes that should be read by this scan task.
`java.util.Collection<T>`	`tasks()`	Returns scan tasks in this group.

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

- Method Detail
  - tasks
```
java.util.Collection<T> tasks()
```
    Returns scan tasks in this group.
  - sizeBytes
```
default long sizeBytes()
```
    Description copied from interface: ScanTask
    
    The number of bytes that should be read by this scan task.
    
    Specified by:
    
    sizeBytes in interface ScanTask
    
    Returns:
    
    the total number of bytes to read
  - filesCount
```
default int filesCount()
```
    Description copied from interface: ScanTask
    
    The number of files that will be opened by this scan task.
    
    Specified by:
    
    filesCount in interface ScanTask
    
    Returns:
    
    the number of files to open