org.apache.hadoop.hbase.regionserver

Class NoOpScanPolicyObserver

java.lang.Object

org.apache.hadoop.hbase.regionserver.NoOpScanPolicyObserver

All Implemented Interfaces:

Coprocessor, RegionCoprocessor, RegionObserver

public class NoOpScanPolicyObserver
extends Object
implements RegionCoprocessor, RegionObserver

RegionObserver that just reimplements the default behavior, in order to validate that all the necessary APIs for this are public This observer is also used in TestFromClientSideWithCoprocessor and TestCompactionWithCoprocessor to make sure that a wide range of functionality still behaves as expected.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.Coprocessor

Coprocessor.State

Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.coprocessor.RegionObserver

RegionObserver.MutationType

Field Summary

Fields inherited from interface org.apache.hadoop.hbase.Coprocessor

PRIORITY_HIGHEST, PRIORITY_LOWEST, PRIORITY_SYSTEM, PRIORITY_USER, VERSION

Constructor Summary

Constructors

Constructor and Description
NoOpScanPolicyObserver()

Method Summary

Modifier and Type	Method and Description
Optional<RegionObserver>	getRegionObserver()
InternalScanner	preCompact(ObserverContext<RegionCoprocessorEnvironment> c, Store store, InternalScanner scanner, ScanType scanType, org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker tracker, org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest request)
InternalScanner	preFlush(ObserverContext<RegionCoprocessorEnvironment> c, Store store, InternalScanner scanner, FlushLifeCycleTracker tracker)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.hadoop.hbase.coprocessor.RegionCoprocessor

getBulkLoadObserver, getEndpointObserver

Methods inherited from interface org.apache.hadoop.hbase.Coprocessor

getServices, start, stop

Methods inherited from interface org.apache.hadoop.hbase.coprocessor.RegionObserver

postAppend, postBatchMutate, postBatchMutateIndispensably, postBulkLoadHFile, postCheckAndDelete, postCheckAndPut, postClose, postCloseRegionOperation, postCommitStoreFile, postCompact, postCompactSelection, postDelete, postExists, postFlush, postFlush, postGetOp, postIncrement, postInstantiateDeleteTracker, postMemStoreCompaction, postMutationBeforeWAL, postOpen, postPut, postReplayWALs, postScannerClose, postScannerFilterRow, postScannerNext, postScannerOpen, postStartRegionOperation, postStoreFileReaderOpen, postWALRestore, preAppend, preAppendAfterRowLock, preBatchMutate, preBulkLoadHFile, preCheckAndDelete, preCheckAndDeleteAfterRowLock, preCheckAndPut, preCheckAndPutAfterRowLock, preClose, preCommitStoreFile, preCompactScannerOpen, preCompactSelection, preDelete, preExists, preFlush, preFlushScannerOpen, preGetOp, preIncrement, preIncrementAfterRowLock, preMemStoreCompaction, preMemStoreCompactionCompact, preMemStoreCompactionCompactScannerOpen, preOpen, prePrepareTimeStampForDeleteVersion, prePut, preReplayWALs, preScannerClose, preScannerNext, preScannerOpen, preStoreFileReaderOpen, preStoreScannerOpen, preWALRestore

Constructor Detail

NoOpScanPolicyObserver

public NoOpScanPolicyObserver()

Method Detail

getRegionObserver

public Optional<RegionObserver> getRegionObserver()

Specified by:

getRegionObserver in interface RegionCoprocessor

preFlush

public InternalScanner preFlush(ObserverContext<RegionCoprocessorEnvironment> c,
                                Store store,
                                InternalScanner scanner,
                                FlushLifeCycleTracker tracker)
                         throws IOException

Specified by:

preFlush in interface RegionObserver

Throws:

IOException

preCompact

public InternalScanner preCompact(ObserverContext<RegionCoprocessorEnvironment> c,
                                  Store store,
                                  InternalScanner scanner,
                                  ScanType scanType,
                                  org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker tracker,
                                  org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest request)
                           throws IOException

Specified by:

preCompact in interface RegionObserver

Throws:

IOException