| Package | Description | 
|---|---|
| org.apache.hadoop.hbase.io.hfile | Provides implementations of  HFileand HFileBlockCache. | 
| org.apache.hadoop.hbase.regionserver | |
| org.apache.hadoop.hbase.util | 
| Modifier and Type | Interface and Description | 
|---|---|
| interface  | HFileScannerA scanner allows you to position yourself within a HFile and
 scan through it. | 
| Modifier and Type | Class and Description | 
|---|---|
| protected static class  | HFileReaderImpl.EncodedScannerScanner that operates on encoded data blocks. | 
| protected static class  | HFileReaderImpl.HFileScannerImpl | 
| Modifier and Type | Interface and Description | 
|---|---|
| interface  | KeyValueScannerScanner that returns the next KeyValue. | 
| Modifier and Type | Class and Description | 
|---|---|
| (package private) class  | HRegion.RegionScannerImplRegionScannerImpl is used to combine scanners from multiple Stores (aka column families). | 
| class  | KeyValueHeapImplements a heap merge across any number of KeyValueScanners. | 
| class  | MobStoreScannerScanner scans both the memstore and the MOB Store. | 
| class  | NonLazyKeyValueScannerA "non-lazy" scanner which always does a real seek operation. | 
| class  | NonReversedNonLazyKeyValueScannerA "non-reversed & non-lazy" scanner which does not support backward scanning
 and always does a real seek operation. | 
| class  | ReversedKeyValueHeapReversedKeyValueHeap is used for supporting reversed scanning. | 
| class  | ReversedMobStoreScannerReversedMobStoreScanner extends from ReversedStoreScanner, and is used to support reversed
 scanning in both the memstore and the MOB store. | 
| (package private) class  | ReversedRegionScannerImplReversibleRegionScannerImpl extends from RegionScannerImpl, and is used to
 support reversed scanning. | 
| class  | ReversedStoreScannerReversedStoreScanner extends from StoreScanner, and is used to support
 reversed scanning. | 
| class  | SegmentScannerA scanner of a single memstore segment. | 
| class  | SnapshotSegmentScannerA basic SegmentScanner used against an ImmutableScanner snapshot
 Used flushing where we do a single pass, no reverse scanning or
 inserts happening. | 
| class  | StoreFileScannerKeyValueScanner adaptor over the Reader. | 
| class  | StoreScannerScanner scans both the memstore and the Store. | 
| Modifier and Type | Field and Description | 
|---|---|
| private Shipper | RSRpcServices.RegionScannerShippedCallBack. shipper | 
| Modifier and Type | Method and Description | 
|---|---|
| private RSRpcServices.RegionScannerHolder | RSRpcServices. addScanner(String scannerName,
          RegionScanner s,
          Shipper shipper,
          HRegion r,
          boolean needCursor,
          boolean fullRegionScan) | 
| Constructor and Description | 
|---|
| RegionScannerShippedCallBack(String scannerName,
                            Shipper shipper,
                            LeaseManager.Lease lease) | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | CollectionBackedScannerUtility scanner that wraps a sortable collection and serves as a KeyValueScanner. | 
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