io.druid.segment.loading

Interface DataSegmentArchiver

All Known Implementing Classes:

OmniDataSegmentArchiver, S3DataSegmentArchiver

public interface DataSegmentArchiver

Method Summary

Modifier and Type	Method and Description
DataSegment	archive(DataSegment segment) Perform an archive task on the segment and return the resulting segment or null if there was no action needed.
DataSegment	restore(DataSegment segment) Perform the restore from an archived segment and return the resulting segment or null if there was no action

Method Detail

archive

@Nullable
DataSegment archive(DataSegment segment)
                       throws SegmentLoadingException

Perform an archive task on the segment and return the resulting segment or null if there was no action needed.

Parameters:

segment - The source segment

Returns:

The segment after archiving or `null` if there was no archiving performed.

Throws:

SegmentLoadingException - on error

restore

@Nullable
DataSegment restore(DataSegment segment)
                       throws SegmentLoadingException

Perform the restore from an archived segment and return the resulting segment or null if there was no action

Parameters:

segment - The source (archived) segment

Returns:

The segment after it has been unarchived

Throws:

SegmentLoadingException - on error