Uses of Interface
org.apache.hadoop.hbase.regionserver.KeyValueScanner

Packages that use org.apache.hadoop.hbase.regionserver.KeyValueScanner

Package	Description
org.apache.hadoop.hbase.regionserver
org.apache.hadoop.hbase.util

Uses of org.apache.hadoop.hbase.regionserver.KeyValueScanner in org.apache.hadoop.hbase.regionserver

Classes in org.apache.hadoop.hbase.regionserver that implement org.apache.hadoop.hbase.regionserver.KeyValueScanner in in

Modifier and Type	Class	Description
class	org.apache.hadoop.hbase.regionserver.KeyValueHeap	Implements a heap merge across any number of KeyValueScanners.
class	org.apache.hadoop.hbase.regionserver.MobStoreScanner	Scanner scans both the memstore and the MOB Store.
class	org.apache.hadoop.hbase.regionserver.NonLazyKeyValueScanner	A "non-lazy" scanner which always does a real seek operation.
class	org.apache.hadoop.hbase.regionserver.NonReversedNonLazyKeyValueScanner	A "non-reversed & non-lazy" scanner which does not support backward scanning and always does a real seek operation.
class	org.apache.hadoop.hbase.regionserver.ReversedKeyValueHeap	ReversedKeyValueHeap is used for supporting reversed scanning.
class	org.apache.hadoop.hbase.regionserver.ReversedMobStoreScanner	ReversedMobStoreScanner extends from ReversedStoreScanner, and is used to support reversed scanning in both the memstore and the MOB store.
class	org.apache.hadoop.hbase.regionserver.ReversedStoreScanner	ReversedStoreScanner extends from StoreScanner, and is used to support reversed scanning.
class	org.apache.hadoop.hbase.regionserver.SegmentScanner	A scanner of a single memstore segment.
class	org.apache.hadoop.hbase.regionserver.SnapshotSegmentScanner	A basic SegmentScanner used against an ImmutableScanner snapshot Used flushing where we do a single pass, no reverse scanning or inserts happening.
class	org.apache.hadoop.hbase.regionserver.StoreFileScanner	KeyValueScanner adaptor over the Reader.
class	org.apache.hadoop.hbase.regionserver.StoreScanner	Scanner scans both the memstore and the Store.

Fields in org.apache.hadoop.hbase.regionserver declared as org.apache.hadoop.hbase.regionserver.KeyValueScanner in in

Modifier and Type	Field	Description
protected org.apache.hadoop.hbase.regionserver.KeyValueScanner	KeyValueHeap.current	The current sub-scanner, i.e.

Fields in org.apache.hadoop.hbase.regionserver with type parameters of type org.apache.hadoop.hbase.regionserver.KeyValueScanner in in

Modifier and Type	Field	Description
protected PriorityQueue<org.apache.hadoop.hbase.regionserver.KeyValueScanner>	KeyValueHeap.heap
protected List<org.apache.hadoop.hbase.regionserver.KeyValueScanner>	KeyValueHeap.scannersForDelayedClose

Methods in org.apache.hadoop.hbase.regionserver that return org.apache.hadoop.hbase.regionserver.KeyValueScanner in in

Modifier and Type	Method	Description
protected org.apache.hadoop.hbase.regionserver.KeyValueScanner	HMobStore.createScanner(org.apache.hadoop.hbase.client.Scan scan, org.apache.hadoop.hbase.regionserver.ScanInfo scanInfo, NavigableSet<byte[]> targetCols, long readPt)	Gets the MobStoreScanner or MobReversedStoreScanner.
protected org.apache.hadoop.hbase.regionserver.KeyValueScanner	HStore.createScanner(org.apache.hadoop.hbase.client.Scan scan, org.apache.hadoop.hbase.regionserver.ScanInfo scanInfo, NavigableSet<byte[]> targetCols, long readPt)
org.apache.hadoop.hbase.regionserver.KeyValueScanner	CompositeImmutableSegment.getScanner(long readPoint)	Creates the scanner for the given read point
org.apache.hadoop.hbase.regionserver.KeyValueScanner	HStore.getScanner(org.apache.hadoop.hbase.client.Scan scan, NavigableSet<byte[]> targetCols, long readPt)	Return a scanner for both the memstore and the HStore files.
protected org.apache.hadoop.hbase.regionserver.KeyValueScanner	Segment.getScanner(long readPoint)	Creates the scanner for the given read point
protected org.apache.hadoop.hbase.regionserver.KeyValueScanner	KeyValueHeap.pollRealKV()	Fetches the top sub-scanner from the priority queue, ensuring that a real seek has been done on it.

Methods in org.apache.hadoop.hbase.regionserver that return types with arguments of type org.apache.hadoop.hbase.regionserver.KeyValueScanner in in

Modifier and Type	Method	Description
protected List<org.apache.hadoop.hbase.regionserver.KeyValueScanner>	CompactingMemStore.createList(int capacity)
PriorityQueue<org.apache.hadoop.hbase.regionserver.KeyValueScanner>	KeyValueHeap.getHeap()	Returns the current Heap
List<org.apache.hadoop.hbase.regionserver.KeyValueScanner>	CompactingMemStore.getScanners(long readPt)	This method is protected under HStore#lock read lock.
List<org.apache.hadoop.hbase.regionserver.KeyValueScanner>	CompositeImmutableSegment.getScanners(long readPoint)
List<org.apache.hadoop.hbase.regionserver.KeyValueScanner>	DefaultMemStore.getScanners(long readPt)
List<org.apache.hadoop.hbase.regionserver.KeyValueScanner>	HStore.getScanners(boolean cacheBlocks, boolean isGet, boolean usePread, boolean isCompaction, org.apache.hadoop.hbase.regionserver.querymatcher.ScanQueryMatcher matcher, byte[] startRow, byte[] stopRow, long readPt, boolean onlyLatestVersion)	Get all scanners with no filtering based on TTL (that happens further down the line).
List<org.apache.hadoop.hbase.regionserver.KeyValueScanner>	HStore.getScanners(boolean cacheBlocks, boolean usePread, boolean isCompaction, org.apache.hadoop.hbase.regionserver.querymatcher.ScanQueryMatcher matcher, byte[] startRow, boolean includeStartRow, byte[] stopRow, boolean includeStopRow, long readPt, boolean onlyLatestVersion)	Get all scanners with no filtering based on TTL (that happens further down the line).
List<org.apache.hadoop.hbase.regionserver.KeyValueScanner>	HStore.getScanners(List<org.apache.hadoop.hbase.regionserver.HStoreFile> files, boolean cacheBlocks, boolean isGet, boolean usePread, boolean isCompaction, org.apache.hadoop.hbase.regionserver.querymatcher.ScanQueryMatcher matcher, byte[] startRow, byte[] stopRow, long readPt, boolean includeMemstoreScanner, boolean onlyLatestVersion)	Create scanners on the given files and if needed on the memstore with no filtering based on TTL (that happens further down the line).
List<org.apache.hadoop.hbase.regionserver.KeyValueScanner>	HStore.getScanners(List<org.apache.hadoop.hbase.regionserver.HStoreFile> files, boolean cacheBlocks, boolean usePread, boolean isCompaction, org.apache.hadoop.hbase.regionserver.querymatcher.ScanQueryMatcher matcher, byte[] startRow, boolean includeStartRow, byte[] stopRow, boolean includeStopRow, long readPt, boolean includeMemstoreScanner, boolean onlyLatestVersion)	Create scanners on the given files and if needed on the memstore with no filtering based on TTL (that happens further down the line).
List<org.apache.hadoop.hbase.regionserver.KeyValueScanner>	MemStore.getScanners(long readPt)
List<org.apache.hadoop.hbase.regionserver.KeyValueScanner>	MemStoreSnapshot.getScanners()	Create new SnapshotSegmentScanners for iterating over the snapshot.
List<org.apache.hadoop.hbase.regionserver.KeyValueScanner>	Segment.getScanners(long readPoint)
List<org.apache.hadoop.hbase.regionserver.KeyValueScanner>	HStore.recreateScanners(List<org.apache.hadoop.hbase.regionserver.KeyValueScanner> currentFileScanners, boolean cacheBlocks, boolean usePread, boolean isCompaction, org.apache.hadoop.hbase.regionserver.querymatcher.ScanQueryMatcher matcher, byte[] startRow, boolean includeStartRow, byte[] stopRow, boolean includeStopRow, long readPt, boolean includeMemstoreScanner)	Recreates the scanners on the current list of active store file scanners
protected List<org.apache.hadoop.hbase.regionserver.KeyValueScanner>	StoreScanner.selectScannersFrom(org.apache.hadoop.hbase.regionserver.HStore store, List<? extends org.apache.hadoop.hbase.regionserver.KeyValueScanner> allScanners)	Filters the given list of scanners using Bloom filter, time range, and TTL.

Methods in org.apache.hadoop.hbase.regionserver with parameters of type org.apache.hadoop.hbase.regionserver.KeyValueScanner in in

Modifier and Type	Method	Description
int	KeyValueHeap.KVScannerComparator.compare(org.apache.hadoop.hbase.regionserver.KeyValueScanner left, org.apache.hadoop.hbase.regionserver.KeyValueScanner right)
static boolean	NonLazyKeyValueScanner.doRealSeek(org.apache.hadoop.hbase.regionserver.KeyValueScanner scanner, org.apache.hadoop.hbase.ExtendedCell kv, boolean forward)

Method parameters in org.apache.hadoop.hbase.regionserver with type arguments of type org.apache.hadoop.hbase.regionserver.KeyValueScanner in in

Modifier and Type	Method	Description
protected static void	AbstractMemStore.addToScanners(org.apache.hadoop.hbase.regionserver.Segment segment, long readPt, List<org.apache.hadoop.hbase.regionserver.KeyValueScanner> scanners)
org.apache.hadoop.hbase.regionserver.RegionScannerImpl	HRegion.getScanner(org.apache.hadoop.hbase.client.Scan scan, List<org.apache.hadoop.hbase.regionserver.KeyValueScanner> additionalScanners)
org.apache.hadoop.hbase.regionserver.RegionScanner	Region.getScanner(org.apache.hadoop.hbase.client.Scan scan, List<org.apache.hadoop.hbase.regionserver.KeyValueScanner> additionalScanners)	Return an iterator that scans over the HRegion, returning the indicated columns and rows specified by the Scan.
protected void	RegionScannerImpl.initializeKVHeap(List<org.apache.hadoop.hbase.regionserver.KeyValueScanner> scanners, List<org.apache.hadoop.hbase.regionserver.KeyValueScanner> joinedScanners, org.apache.hadoop.hbase.regionserver.HRegion region)
protected org.apache.hadoop.hbase.regionserver.RegionScannerImpl	HRegion.instantiateRegionScanner(org.apache.hadoop.hbase.client.Scan scan, List<org.apache.hadoop.hbase.regionserver.KeyValueScanner> additionalScanners, long nonceGroup, long nonce)
protected org.apache.hadoop.hbase.regionserver.KeyValueHeap	ReversedStoreScanner.newKVHeap(List<? extends org.apache.hadoop.hbase.regionserver.KeyValueScanner> scanners, CellComparator comparator)
protected org.apache.hadoop.hbase.regionserver.KeyValueHeap	StoreScanner.newKVHeap(List<? extends org.apache.hadoop.hbase.regionserver.KeyValueScanner> scanners, CellComparator comparator)
List<org.apache.hadoop.hbase.regionserver.KeyValueScanner>	HStore.recreateScanners(List<org.apache.hadoop.hbase.regionserver.KeyValueScanner> currentFileScanners, boolean cacheBlocks, boolean usePread, boolean isCompaction, org.apache.hadoop.hbase.regionserver.querymatcher.ScanQueryMatcher matcher, byte[] startRow, boolean includeStartRow, byte[] stopRow, boolean includeStopRow, long readPt, boolean includeMemstoreScanner)	Recreates the scanners on the current list of active store file scanners
protected void	StoreScanner.resetKVHeap(List<? extends org.apache.hadoop.hbase.regionserver.KeyValueScanner> scanners, CellComparator comparator)
protected void	ReversedStoreScanner.seekScanners(List<? extends org.apache.hadoop.hbase.regionserver.KeyValueScanner> scanners, org.apache.hadoop.hbase.ExtendedCell seekKey, boolean isLazy, boolean isParallelSeek)
protected void	StoreScanner.seekScanners(List<? extends org.apache.hadoop.hbase.regionserver.KeyValueScanner> scanners, org.apache.hadoop.hbase.ExtendedCell seekKey, boolean isLazy, boolean isParallelSeek)	Seek the specified scanners with the given key
protected List<org.apache.hadoop.hbase.regionserver.KeyValueScanner>	StoreScanner.selectScannersFrom(org.apache.hadoop.hbase.regionserver.HStore store, List<? extends org.apache.hadoop.hbase.regionserver.KeyValueScanner> allScanners)	Filters the given list of scanners using Bloom filter, time range, and TTL.

Constructor parameters in org.apache.hadoop.hbase.regionserver with type arguments of type org.apache.hadoop.hbase.regionserver.KeyValueScanner in in

Modifier	Constructor	Description
	KeyValueHeap(List<? extends org.apache.hadoop.hbase.regionserver.KeyValueScanner> scanners, CellComparator comparator)	Constructor.
	ReversedKeyValueHeap(List<? extends org.apache.hadoop.hbase.regionserver.KeyValueScanner> scanners, CellComparator comparator)
	ReversedStoreScanner(org.apache.hadoop.hbase.client.Scan scan, org.apache.hadoop.hbase.regionserver.ScanInfo scanInfo, NavigableSet<byte[]> columns, List<? extends org.apache.hadoop.hbase.regionserver.KeyValueScanner> scanners)	Constructor for testing.
	StoreScanner(org.apache.hadoop.hbase.regionserver.HStore store, org.apache.hadoop.hbase.regionserver.ScanInfo scanInfo, List<? extends org.apache.hadoop.hbase.regionserver.KeyValueScanner> scanners, long smallestReadPoint, long earliestPutTs, byte[] dropDeletesFromRow, byte[] dropDeletesToRow)	Used for compactions that drop deletes from a limited range of rows.
	StoreScanner(org.apache.hadoop.hbase.regionserver.HStore store, org.apache.hadoop.hbase.regionserver.ScanInfo scanInfo, List<? extends org.apache.hadoop.hbase.regionserver.KeyValueScanner> scanners, org.apache.hadoop.hbase.regionserver.ScanType scanType, long smallestReadPoint, long earliestPutTs)	Used for store file compaction and memstore compaction.
	StoreScanner(org.apache.hadoop.hbase.regionserver.ScanInfo scanInfo, org.apache.hadoop.hbase.regionserver.ScanType scanType, List<? extends org.apache.hadoop.hbase.regionserver.KeyValueScanner> scanners)

Uses of org.apache.hadoop.hbase.regionserver.KeyValueScanner in org.apache.hadoop.hbase.util

Classes in org.apache.hadoop.hbase.util that implement org.apache.hadoop.hbase.regionserver.KeyValueScanner in in

Modifier and Type	Class	Description
class	org.apache.hadoop.hbase.util.CollectionBackedScanner	Utility scanner that wraps a sortable collection and serves as a KeyValueScanner.