ContentFile

Type Parameters:

F - the concrete Java class of a ContentFile instance.

All Known Subinterfaces:

DataFile, DeleteFile

All Known Implementing Classes:

SparkDataFile
```
public interface ContentFile<F>
```
Superinterface of DataFile and DeleteFile that exposes common methods.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`java.util.Map<java.lang.Integer,java.lang.Long>`	`columnSizes()` Returns if collected, map from column ID to the size of the column in bytes, null otherwise.
`FileContent`	`content()` Returns type of content stored in the file; one of DATA, POSITION_DELETES, or EQUALITY_DELETES.
`F`	`copy()` Copies this file.
`F`	`copyWithoutStats()` Copies this file without file stats.
`java.util.List<java.lang.Integer>`	`equalityFieldIds()` Returns the set of field IDs used for equality comparison, in equality delete files.
`long`	`fileSizeInBytes()` Returns the file size in bytes.
`FileFormat`	`format()` Returns format of the file.
`java.nio.ByteBuffer`	`keyMetadata()` Returns metadata about how this file is encrypted, or null if the file is stored in plain text.
`java.util.Map<java.lang.Integer,java.nio.ByteBuffer>`	`lowerBounds()` Returns if collected, map from column ID to value lower bounds, null otherwise.
`java.util.Map<java.lang.Integer,java.lang.Long>`	`nanValueCounts()` Returns if collected, map from column ID to its NaN value count, null otherwise.
`java.util.Map<java.lang.Integer,java.lang.Long>`	`nullValueCounts()` Returns if collected, map from column ID to its null value count, null otherwise.
`StructLike`	`partition()` Returns partition for this file as a `StructLike`.
`java.lang.CharSequence`	`path()` Returns fully qualified path to the file, suitable for constructing a Hadoop Path.
`java.lang.Long`	`pos()` Returns the ordinal position of the file in a manifest, or null if it was not read from a manifest.
`long`	`recordCount()` Returns the number of top-level records in the file.
`int`	`specId()` Returns id of the partition spec used for partition metadata.
`java.util.List<java.lang.Long>`	`splitOffsets()` Returns list of recommended split locations, if applicable, null otherwise.
`java.util.Map<java.lang.Integer,java.nio.ByteBuffer>`	`upperBounds()` Returns if collected, map from column ID to value upper bounds, null otherwise.
`java.util.Map<java.lang.Integer,java.lang.Long>`	`valueCounts()` Returns if collected, map from column ID to the count of its non-null values, null otherwise.

- Method Detail
  - pos
```
java.lang.Long pos()
```
    Returns the ordinal position of the file in a manifest, or null if it was not read from a manifest.
  - specId
```
int specId()
```
    Returns id of the partition spec used for partition metadata.
  - content
```
FileContent content()
```
    Returns type of content stored in the file; one of DATA, POSITION_DELETES, or EQUALITY_DELETES.
  - path
```
java.lang.CharSequence path()
```
    Returns fully qualified path to the file, suitable for constructing a Hadoop Path.
  - format
```
FileFormat format()
```
    Returns format of the file.
  - partition
```
StructLike partition()
```
    Returns partition for this file as a StructLike.
  - recordCount
```
long recordCount()
```
    Returns the number of top-level records in the file.
  - fileSizeInBytes
```
long fileSizeInBytes()
```
    Returns the file size in bytes.
  - columnSizes
```
java.util.Map<java.lang.Integer,java.lang.Long> columnSizes()
```
    Returns if collected, map from column ID to the size of the column in bytes, null otherwise.
  - valueCounts
```
java.util.Map<java.lang.Integer,java.lang.Long> valueCounts()
```
    Returns if collected, map from column ID to the count of its non-null values, null otherwise.
  - nullValueCounts
```
java.util.Map<java.lang.Integer,java.lang.Long> nullValueCounts()
```
    Returns if collected, map from column ID to its null value count, null otherwise.
  - nanValueCounts
```
java.util.Map<java.lang.Integer,java.lang.Long> nanValueCounts()
```
    Returns if collected, map from column ID to its NaN value count, null otherwise.
  - lowerBounds
```
java.util.Map<java.lang.Integer,java.nio.ByteBuffer> lowerBounds()
```
    Returns if collected, map from column ID to value lower bounds, null otherwise.
  - upperBounds
```
java.util.Map<java.lang.Integer,java.nio.ByteBuffer> upperBounds()
```
    Returns if collected, map from column ID to value upper bounds, null otherwise.
  - keyMetadata
```
java.nio.ByteBuffer keyMetadata()
```
    Returns metadata about how this file is encrypted, or null if the file is stored in plain text.
  - splitOffsets
```
java.util.List<java.lang.Long> splitOffsets()
```
    Returns list of recommended split locations, if applicable, null otherwise.
    When available, this information is used for planning scan tasks whose boundaries are determined by these offsets. The returned list must be sorted in ascending order.
  - equalityFieldIds
```
java.util.List<java.lang.Integer> equalityFieldIds()
```
    Returns the set of field IDs used for equality comparison, in equality delete files.
    An equality delete file may contain additional data fields that are not used by equality comparison. The subset of columns in a delete file to be used in equality comparison are tracked by ID. Extra columns can be used to reconstruct changes and metrics from extra columns are used during job planning.
    
    Returns:
    
    IDs of the fields used in equality comparison with the records in this delete file
  - copy
```
F copy()
```
    Copies this file. Manifest readers can reuse file instances; use this method to copy data when collecting files from tasks.
    
    Returns:
    
    a copy of this data file
  - copyWithoutStats
```
F copyWithoutStats()
```
    Copies this file without file stats. Manifest readers can reuse file instances; use this method to copy data without stats when collecting files.
    
    Returns:
    
    a copy of this data file, without lower bounds, upper bounds, value counts, null value counts, or nan value counts

Interface ContentFile<F>

Method Summary

Method Detail

pos

specId

content

path

format

partition

recordCount

fileSizeInBytes

columnSizes

valueCounts

nullValueCounts

nanValueCounts

lowerBounds

upperBounds

keyMetadata

splitOffsets

equalityFieldIds

copy

copyWithoutStats