Package org.apache.druid.metadata.segment

Interface SegmentMetadataTransaction

All Superinterfaces:

AutoCloseable, Closeable, DatasourceSegmentMetadataReader, DatasourceSegmentMetadataWriter, SegmentMetadataReadTransaction

public interface SegmentMetadataTransaction
extends SegmentMetadataReadTransaction, DatasourceSegmentMetadataWriter

Represents a single transaction involving read/write of segment metadata into the metadata store. A transaction is associated with a single instance of a Handle and is meant to be short-lived.

A transaction CANNOT read back records it has written due to rollback restrictions in CachedSegmentMetadataTransaction.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	SegmentMetadataTransaction.Callback<T>

Method Summary

Modifier and Type	Method	Description
void	setRollbackOnly()	Marks this transaction to be rolled back.

Methods inherited from interface org.apache.druid.metadata.segment.DatasourceSegmentMetadataReader

findExistingSegmentIds, findHighestUnusedSegmentId, findPendingSegmentIds, findPendingSegmentIdsWithExactInterval, findPendingSegments, findPendingSegmentsOverlapping, findPendingSegmentsWithExactInterval, findSegment, findSegments, findSegmentsWithSchema, findUnusedSegments, findUsedSegment, findUsedSegmentIdsOverlapping, findUsedSegments, findUsedSegmentsOverlappingAnyOf, findUsedSegmentsPlusOverlappingAnyOf

Methods inherited from interface org.apache.druid.metadata.segment.DatasourceSegmentMetadataWriter

deleteAllPendingSegments, deletePendingSegments, deletePendingSegments, deletePendingSegmentsCreatedIn, deleteSegments, insertPendingSegment, insertPendingSegments, insertSegments, insertSegmentsWithMetadata, markAllSegmentsAsUnused, markSegmentAsUnused, markSegmentsAsUnused, markSegmentsWithinIntervalAsUnused, updateSegmentPayload

Methods inherited from interface org.apache.druid.metadata.segment.SegmentMetadataReadTransaction

close, getHandle, noCacheSql

Method Details

setRollbackOnly

void setRollbackOnly()

Marks this transaction to be rolled back.