@InterfaceAudience.Private public class ConstraintProcessor extends BaseRegionObserver
Constraints on a given table.
This is an ease of use mechanism - all the functionality here could be implemented on any given system by a coprocessor.
RegionObserver.MutationTypeCoprocessor.StatePRIORITY_HIGHEST, PRIORITY_LOWEST, PRIORITY_SYSTEM, PRIORITY_USER, VERSION| Constructor and Description |
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ConstraintProcessor()
Create the constraint processor.
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| Modifier and Type | Method and Description |
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void |
prePut(ObserverContext<RegionCoprocessorEnvironment> e,
Put put,
WALEdit edit,
Durability durability)
Called before the client stores a value.
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void |
start(CoprocessorEnvironment environment) |
postAppend, postBatchMutate, postBatchMutateIndispensably, postBulkLoadHFile, postCheckAndDelete, postCheckAndPut, postClose, postCloseRegionOperation, postCommitStoreFile, postCompact, postCompact, postCompactSelection, postCompactSelection, postCompleteSplit, postDelete, postExists, postFlush, postFlush, postGetClosestRowBefore, postGetOp, postIncrement, postIncrementColumnValue, postInstantiateDeleteTracker, postLogReplay, postMutationBeforeWAL, postOpen, postPut, postRollBackSplit, postScannerClose, postScannerFilterRow, postScannerNext, postScannerOpen, postSplit, postStartRegionOperation, postStoreFileReaderOpen, postWALRestore, postWALRestore, preAppend, preAppendAfterRowLock, preBatchMutate, preBulkLoadHFile, preCheckAndDelete, preCheckAndDeleteAfterRowLock, preCheckAndPut, preCheckAndPutAfterRowLock, preClose, preCommitStoreFile, preCompact, preCompact, preCompactScannerOpen, preCompactScannerOpen, preCompactScannerOpen, preCompactSelection, preCompactSelection, preDelete, preExists, preFlush, preFlush, preFlushScannerOpen, preFlushScannerOpen, preGetClosestRowBefore, preGetOp, preIncrement, preIncrementAfterRowLock, preIncrementColumnValue, preOpen, prePrepareTimeStampForDeleteVersion, preRollBackSplit, preScannerClose, preScannerNext, preScannerOpen, preSplit, preSplit, preSplitAfterPONR, preSplitBeforePONR, preStoreFileReaderOpen, preStoreScannerOpen, preWALRestore, preWALRestore, stoppublic ConstraintProcessor()
Stores the current classloader.
public void start(CoprocessorEnvironment environment)
start in interface Coprocessorstart in class BaseRegionObserverpublic void prePut(ObserverContext<RegionCoprocessorEnvironment> e, Put put, WALEdit edit, Durability durability) throws IOException
RegionObserverCall CoprocessorEnvironment#bypass to skip default actions
Call CoprocessorEnvironment#complete to skip any subsequent chained coprocessors
prePut in interface RegionObserverprePut in class BaseRegionObservere - the environment provided by the region serverput - The Put objectedit - The WALEdit object that will be written to the waldurability - Persistence guarantee for this PutIOException - if an error occurred on the coprocessorCopyright © 2007–2019 The Apache Software Foundation. All rights reserved.