com.netflix.iceberg

Interface Snapshot

All Superinterfaces:

Filterable<FilteredSnapshot>, java.lang.Iterable<DataFile>

public interface Snapshot
extends Filterable<FilteredSnapshot>

A snapshot of the data in a table at a point in time.

A snapshot consist of one or more file manifests, and the complete table contents is the union of all the data files in those manifests.

Snapshots are created by table operations, like AppendFiles and RewriteFiles.

Field Summary

Fields inherited from interface com.netflix.iceberg.Filterable

ALL_COLUMNS

Method Summary

Modifier and Type	Method and Description
java.lang.Iterable<DataFile>	addedFiles() Return all files added to the table in this snapshot.
java.lang.Iterable<DataFile>	deletedFiles() Return all files deleted from the table in this snapshot.
java.util.List<java.lang.String>	manifests() Return the location of all manifests in this snapshot.
long	snapshotId() Return this snapshot's ID.
long	timestampMillis() Return this snapshot's timestamp.

Methods inherited from interface com.netflix.iceberg.Filterable

filterPartitions, filterRows, select, select

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Method Detail

snapshotId

long snapshotId()

Return this snapshot's ID.

Returns:

a long ID

timestampMillis

long timestampMillis()

Return this snapshot's timestamp.

This timestamp is the same as those produced by System.currentTimeMillis().

Returns:

a long timestamp in milliseconds

manifests

java.util.List<java.lang.String> manifests()

Return the location of all manifests in this snapshot.

The current table is made of the union of the data files in these manifests.

Returns:

a list of fully-qualified manifest locations

addedFiles

java.lang.Iterable<DataFile> addedFiles()

Return all files added to the table in this snapshot.

The files returned include the following columns: file_path, file_format, partition, record_count, and file_size_in_bytes. Other columns will be null.

Returns:

all files added to the table in this snapshot.

deletedFiles

java.lang.Iterable<DataFile> deletedFiles()

Return all files deleted from the table in this snapshot.

The files returned include the following columns: file_path, file_format, partition, record_count, and file_size_in_bytes. Other columns will be null.

Returns:

all files deleted from the table in this snapshot.