org.apache.iceberg

Class ManifestWriter<F extends ContentFile<F>>

java.lang.Object

org.apache.iceberg.ManifestWriter<F>

Type Parameters:

F - Java class of files written to the manifest, either DataFile or DeleteFile.

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, FileAppender<F>

public abstract class ManifestWriter<F extends ContentFile<F>>
extends java.lang.Object
implements FileAppender<F>

Writer for manifest files.

Method Summary

Modifier and Type	Method and Description
void	add(F addedFile) Add an added entry for a file.
void	close()
protected ManifestContent	content()
void	delete(F deletedFile) Add a delete entry for a file.
void	existing(F existingFile, long fileSnapshotId, long sequenceNumber) Add an existing entry for a file.
long	length() Returns the length of this file.
Metrics	metrics() Returns Metrics for this file.
protected abstract FileAppender<org.apache.iceberg.ManifestEntry<F>>	newAppender(PartitionSpec spec, OutputFile outputFile)
protected abstract org.apache.iceberg.ManifestEntry<F>	prepare(org.apache.iceberg.ManifestEntry<F> entry)
ManifestFile	toManifestFile()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.iceberg.io.FileAppender

addAll, addAll, splitOffsets

Method Detail

prepare

protected abstract org.apache.iceberg.ManifestEntry<F> prepare(org.apache.iceberg.ManifestEntry<F> entry)

newAppender

protected abstract FileAppender<org.apache.iceberg.ManifestEntry<F>> newAppender(PartitionSpec spec,
                                                                                 OutputFile outputFile)

content

protected ManifestContent content()

add

public void add(F addedFile)

Add an added entry for a file.

The entry's snapshot ID will be this manifest's snapshot ID.

Specified by:

add in interface FileAppender<F extends ContentFile<F>>

Parameters:

addedFile - a data file

existing

public void existing(F existingFile,
                     long fileSnapshotId,
                     long sequenceNumber)

Add an existing entry for a file.

Parameters:

existingFile - a file

fileSnapshotId - snapshot ID when the data file was added to the table

sequenceNumber - sequence number for the data file

delete

public void delete(F deletedFile)

Add a delete entry for a file.

The entry's snapshot ID will be this manifest's snapshot ID.

Parameters:

deletedFile - a file

metrics

public Metrics metrics()

Description copied from interface: FileAppender

Returns Metrics for this file. Only valid after the file is closed.

Specified by:

metrics in interface FileAppender<F extends ContentFile<F>>

length

public long length()

Description copied from interface: FileAppender

Returns the length of this file.

Specified by:

length in interface FileAppender<F extends ContentFile<F>>

toManifestFile

public ManifestFile toManifestFile()

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Throws:

java.io.IOException