ContentScanTask

Type Parameters:

F - the Java class of the content file

All Superinterfaces:

ScanTask, java.io.Serializable

All Known Subinterfaces:

AddedRowsScanTask, DataTask, DeletedDataFileScanTask, DeletedRowsScanTask, FileScanTask

All Known Implementing Classes:

BaseFileScanTask
```
public interface ContentScanTask<F extends ContentFile<F>>
extends ScanTask
```
A scan task over a range of bytes in a content file.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`F`	`file()`	The `file` to scan.
`long`	`length()`	The number of bytes to scan from the `start()` position in the file.
`Expression`	`residual()`	Returns the residual expression that should be applied to rows in this file scan.
`PartitionSpec`	`spec()`	The `spec` used to store this file.
`long`	`start()`	The starting position of this scan range in the file.

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

- Method Detail
  - file
```
F file()
```
    The file to scan.
    
    Returns:
    
    the file to scan
  - spec
```
PartitionSpec spec()
```
    The spec used to store this file.
    
    Returns:
    
    the partition spec from this file's manifest
  - start
```
long start()
```
    The starting position of this scan range in the file.
    
    Returns:
    
    the start position of this scan range
  - length
```
long length()
```
    The number of bytes to scan from the start() position in the file.
    
    Returns:
    
    the length of this scan range in bytes
  - residual
```
Expression residual()
```
    Returns the residual expression that should be applied to rows in this file scan.
    The residual expression for a file is a filter expression created by partially evaluating the scan's filter using the file's partition data.
    
    Returns:
    
    a residual expression to apply to rows from this scan