org.apache.iceberg

Interface ManifestFile

All Known Implementing Classes:

GenericManifestFile

public interface ManifestFile

Represents a manifest file that can be scanned to find data files in a table.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	ManifestFile.PartitionFieldSummary Summarizes the values of one partition field stored in a manifest file.

Field Summary

Fields

Modifier and Type	Field and Description
static Schema	SCHEMA

Method Summary

Modifier and Type	Method and Description
java.lang.Integer	addedFilesCount()
ManifestFile	copy() Copies this manifest file.
java.lang.Integer	deletedFilesCount()
java.lang.Integer	existingFilesCount()
default boolean	hasAddedFiles() Returns true if the manifest contains ADDED entries or if the count is not known.
default boolean	hasDeletedFiles() Returns true if the manifest contains DELETED entries or if the count is not known.
default boolean	hasExistingFiles() Returns true if the manifest contains EXISTING entries or if the count is not known.
long	length()
java.util.List<ManifestFile.PartitionFieldSummary>	partitions() Returns a list of partition field summaries.
int	partitionSpecId()
java.lang.String	path()
static Schema	schema()
java.lang.Long	snapshotId()

Field Detail

SCHEMA

static final Schema SCHEMA

Method Detail

schema

static Schema schema()

path

java.lang.String path()

Returns:

fully qualified path to the file, suitable for constructing a Hadoop Path

length

long length()

Returns:

length of the manifest file

partitionSpecId

int partitionSpecId()

Returns:

ID of the PartitionSpec used to write the manifest file

snapshotId

java.lang.Long snapshotId()

Returns:

ID of the snapshot that added the manifest file to table metadata

hasAddedFiles

default boolean hasAddedFiles()

Returns true if the manifest contains ADDED entries or if the count is not known.

Returns:

whether this manifest contains entries with ADDED status

addedFilesCount

java.lang.Integer addedFilesCount()

Returns:

the number of data files with status ADDED in the manifest file

hasExistingFiles

default boolean hasExistingFiles()

Returns true if the manifest contains EXISTING entries or if the count is not known.

Returns:

whether this manifest contains entries with EXISTING status

existingFilesCount

java.lang.Integer existingFilesCount()

Returns:

the number of data files with status EXISTING in the manifest file

hasDeletedFiles

default boolean hasDeletedFiles()

Returns true if the manifest contains DELETED entries or if the count is not known.

Returns:

whether this manifest contains entries with DELETED status

deletedFilesCount

java.lang.Integer deletedFilesCount()

Returns:

the number of data files with status DELETED in the manifest file

partitions

java.util.List<ManifestFile.PartitionFieldSummary> partitions()

Returns a list of partition field summaries.

Each summary corresponds to a field in the manifest file's partition spec, by ordinal. For example, the partition spec [ ts_day=date(ts), type=identity(type) ] will have 2 summaries. The first summary is for the ts_day partition field and the second is for the type partition field.

Returns:

a list of partition field summaries, one for each field in the manifest's spec

copy

ManifestFile copy()

Copies this manifest file. Readers can reuse manifest file instances; use this method to make defensive copies.

Returns:

a copy of this manifest file