org.apache.iceberg

Class ManifestFiles

java.lang.Object

org.apache.iceberg.ManifestFiles

public class ManifestFiles
extends java.lang.Object

Method Summary

Modifier and Type	Method and Description
static ManifestReader	read(ManifestFile manifest, FileIO io) Returns a new ManifestReader for a ManifestFile.
static ManifestReader	read(ManifestFile manifest, FileIO io, java.util.Map<java.lang.Integer,PartitionSpec> specsById) Returns a new ManifestReader for a ManifestFile.
static ManifestWriter	write(int formatVersion, PartitionSpec spec, OutputFile outputFile, java.lang.Long snapshotId) Create a new ManifestWriter for the given format version.
static ManifestWriter	write(PartitionSpec spec, OutputFile outputFile) Create a new ManifestWriter.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

read

public static ManifestReader read(ManifestFile manifest,
                                  FileIO io)

Returns a new ManifestReader for a ManifestFile.

Note: Callers should use read(ManifestFile, FileIO, Map) to ensure the schema used by filters is the latest table schema. This should be used only when reading a manifest without filters.

Parameters:

manifest - a ManifestFile

io - a FileIO

Returns:

a manifest reader

read

public static ManifestReader read(ManifestFile manifest,
                                  FileIO io,
                                  java.util.Map<java.lang.Integer,PartitionSpec> specsById)

Returns a new ManifestReader for a ManifestFile.

Parameters:

manifest - a ManifestFile

io - a FileIO

specsById - a Map from spec ID to partition spec

Returns:

a ManifestReader

write

public static ManifestWriter write(PartitionSpec spec,
                                   OutputFile outputFile)

Create a new ManifestWriter.

Manifests created by this writer have all entry snapshot IDs set to null. All entries will inherit the snapshot ID that will be assigned to the manifest on commit.

Parameters:

spec - PartitionSpec used to produce DataFile partition tuples

outputFile - the destination file location

Returns:

a manifest writer

write

public static ManifestWriter write(int formatVersion,
                                   PartitionSpec spec,
                                   OutputFile outputFile,
                                   java.lang.Long snapshotId)

Create a new ManifestWriter for the given format version.

Parameters:

formatVersion - a target format version

spec - a PartitionSpec

outputFile - an OutputFile where the manifest will be written

snapshotId - a snapshot ID for the manifest entries, or null for an inherited ID

Returns:

a manifest writer