Package org.apache.druid.metadata.segment

Interface SegmentMetadataReadTransaction

All Superinterfaces:

AutoCloseable, Closeable, DatasourceSegmentMetadataReader

All Known Subinterfaces:

SegmentMetadataTransaction

public interface SegmentMetadataReadTransaction
extends DatasourceSegmentMetadataReader, Closeable

Represents a single transaction involving read 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.

Nested Class Summary

Nested Classes

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

Method Summary

Modifier and Type	Method	Description
void	close()	Completes the transaction by either committing it or rolling it back.
org.skife.jdbi.v2.Handle	getHandle()
SqlSegmentsMetadataQuery	noCacheSql()

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

Method Details

getHandle

org.skife.jdbi.v2.Handle getHandle()

Returns:

The JDBI handle used in this transaction

noCacheSql

SqlSegmentsMetadataQuery noCacheSql()

Returns:

SQL tool to read or update the metadata store directly.

close

void close()

Completes the transaction by either committing it or rolling it back.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable