com.hazelcast.map.impl

Interface RecordStore

All Known Implementing Classes:

DefaultRecordStore

public interface RecordStore

Defines a record-store.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canAcquireLock(Data key, String caller, long threadId)
void	checkIfLoaded()
int	clear()
void	clearPartition()
boolean	containsKey(Data dataKey)
boolean	containsValue(Object testValue)
boolean	delete(Data dataKey)
Set<Map.Entry<Data,Data>>	entrySetData()
Object	evict(Data key, boolean backup)
int	evictAll(boolean backup) Evicts all keys except locked ones.
void	evictEntries(long now, boolean backup)
void	evictExpiredEntries(int percentage, boolean backup) Do expiration operations.
boolean	extendLock(Data key, String caller, long threadId, long ttl)
void	flush()
boolean	forceUnlock(Data dataKey)
Object	get(Data dataKey, boolean backup) Gets record from RecordStore.
MapEntrySet	getAll(Set<Data> keySet)
long	getHeapCost()
String	getLockOwnerInfo(Data key)
MapContainer	getMapContainer()
MapDataStore<Data,Object>	getMapDataStore()
Map.Entry<Data,Object>	getMapEntry(Data dataKey, long now)
String	getName()
int	getPartitionId()
Record	getRecord(Data key)
Map<Data,Record>	getRecordMap() Returns records map.
Record	getRecordOrNull(Data key) Returns live record or null if record is already expired.
boolean	isEmpty()
boolean	isExpirable()
boolean	isLoaded()
boolean	isLocked(Data key)
boolean	isTransactionallyLocked(Data key)
Iterator<Record>	iterator() Iterates over record store values.
Iterator<Record>	iterator(long now, boolean backup) Iterates over record store values by respecting expiration.
Set<Data>	keySet()
void	loadAllFromStore(List<Data> keys, boolean replaceExistingValues) Loads all keys from defined map store.
Iterator<Record>	loadAwareIterator(long now, boolean backup) Iterates over record store values but first waits map store to load.
boolean	merge(Data dataKey, EntryView mergingEntryView, MapMergePolicy mergePolicy)
Object	put(Data dataKey, Object dataValue, long ttl)
void	put(Map.Entry<Data,Object> entry)
Record	putBackup(Data key, Object value)
Record	putBackup(Data key, Object value, long ttl)
Object	putFromLoad(Data key, Object value) Puts key-value pair to map which is the result of a load from map store operation.
Object	putFromLoad(Data key, Object value, long ttl) Puts key-value pair to map which is the result of a load from map store operation.
Object	putIfAbsent(Data dataKey, Object value, long ttl)
void	putRecord(Data key, Record record) Puts a data key and a record value to record-store.
void	putTransient(Data dataKey, Object value, long ttl)
Data	readBackupData(Data key) Called when MapConfig.isReadBackupData() is true from MapProxySupport.getInternal(com.hazelcast.nio.serialization.Data) Returns corresponding value for key as Data.
Object	remove(Data dataKey)
boolean	remove(Data dataKey, Object testValue)
void	removeBackup(Data dataKey) Similar to remove(com.hazelcast.nio.serialization.Data) except removeBackup doesn't touch mapstore since it does not return previous value.
Object	replace(Data dataKey, Object update)
boolean	replace(Data dataKey, Object expect, Object update) Sets the value to the given updated value if RecordFactory.isEquals(java.lang.Object, java.lang.Object) comparison of current value and expected value is true.
void	reset()
boolean	set(Data dataKey, Object value, long ttl)
void	setLoaded(boolean loaded)
int	size()
boolean	tryPut(Data dataKey, Object value, long ttl)
boolean	txnLock(Data key, String caller, long threadId, long ttl)
boolean	unlock(Data key, String caller, long threadId)
Collection<Data>	valuesData()

Method Detail

getName

String getName()

put

Object put(Data dataKey,
         Object dataValue,
         long ttl)

put

void put(Map.Entry<Data,Object> entry)

putIfAbsent

Object putIfAbsent(Data dataKey,
                 Object value,
                 long ttl)

putBackup

Record putBackup(Data key,
               Object value)

putBackup

Record putBackup(Data key,
               Object value,
               long ttl)

tryPut

boolean tryPut(Data dataKey,
             Object value,
             long ttl)

set

boolean set(Data dataKey,
          Object value,
          long ttl)

remove

Object remove(Data dataKey)

delete

boolean delete(Data dataKey)

remove

boolean remove(Data dataKey,
             Object testValue)

removeBackup

void removeBackup(Data dataKey)

Similar to remove(com.hazelcast.nio.serialization.Data) except removeBackup doesn't touch mapstore since it does not return previous value.

get

Object get(Data dataKey,
         boolean backup)

Gets record from RecordStore. Loads missing keys from map store.

Parameters:

dataKey - key.

backup - true if a backup partition, otherwise false.

Returns:

value of an entry in RecordStore

readBackupData

Data readBackupData(Data key)

Called when MapConfig.isReadBackupData() is true from MapProxySupport.getInternal(com.hazelcast.nio.serialization.Data)

Returns corresponding value for key as Data. This adds an extra serialization step. For the reason of this behaviour please see issue 1292 on github.

Parameters:

key - key to be accessed

Returns:

value as Data independent of InMemoryFormat

getAll

MapEntrySet getAll(Set<Data> keySet)

containsKey

boolean containsKey(Data dataKey)

replace

Object replace(Data dataKey,
             Object update)

replace

boolean replace(Data dataKey,
              Object expect,
              Object update)

Sets the value to the given updated value if RecordFactory.isEquals(java.lang.Object, java.lang.Object) comparison of current value and expected value is true.

Parameters:

dataKey - key which's value is requested to be replaced.

expect - the expected value

update - the new value

Returns:

true if successful. False return indicates that the actual value was not equal to the expected value.

putTransient

void putTransient(Data dataKey,
                Object value,
                long ttl)

putFromLoad

Object putFromLoad(Data key,
                 Object value)

Puts key-value pair to map which is the result of a load from map store operation.

Parameters:

key - key to put.

value - to put.

Returns:

the previous value associated with key, or null if there was no mapping for key.

See Also:

PutFromLoadAllOperation

putFromLoad

Object putFromLoad(Data key,
                 Object value,
                 long ttl)

Puts key-value pair to map which is the result of a load from map store operation.

Parameters:

key - key to put.

value - to put.

ttl - time to live seconds.

Returns:

the previous value associated with key, or null if there was no mapping for key.

See Also:

PutAllOperation

merge

boolean merge(Data dataKey,
            EntryView mergingEntryView,
            MapMergePolicy mergePolicy)

getRecord

Record getRecord(Data key)

putRecord

void putRecord(Data key,
             Record record)

Puts a data key and a record value to record-store. Used in replication operations.

Parameters:

key - the data key to put record store.

record - the value for record store.

See Also:

MapReplicationOperation

iterator

Iterator<Record> iterator()

Iterates over record store values.

Returns:

read only iterator for map values.

iterator

Iterator<Record> iterator(long now,
                        boolean backup)

Iterates over record store values by respecting expiration.

Returns:

read only iterator for map values.

loadAwareIterator

Iterator<Record> loadAwareIterator(long now,
                                 boolean backup)

Iterates over record store values but first waits map store to load. If an operation needs to wait a data source load like query operations IMap.keySet(com.hazelcast.query.Predicate), this method can be used to return a read-only iterator.

Parameters:

now - current time in millis

backup - true if a backup partition, otherwise false.

Returns:

read only iterator for map values.

getRecordMap

Map<Data,Record> getRecordMap()

Returns records map.

See Also:

RecordStoreLoader

keySet

Set<Data> keySet()

size

int size()

txnLock

boolean txnLock(Data key,
              String caller,
              long threadId,
              long ttl)

extendLock

boolean extendLock(Data key,
                 String caller,
                 long threadId,
                 long ttl)

unlock

boolean unlock(Data key,
             String caller,
             long threadId)

isLocked

boolean isLocked(Data key)

isTransactionallyLocked

boolean isTransactionallyLocked(Data key)

canAcquireLock

boolean canAcquireLock(Data key,
                     String caller,
                     long threadId)

getLockOwnerInfo

String getLockOwnerInfo(Data key)

containsValue

boolean containsValue(Object testValue)

evict

Object evict(Data key,
           boolean backup)

evictAll

int evictAll(boolean backup)

Evicts all keys except locked ones.

Parameters:

backup - true if a backup partition, otherwise false.

Returns:

number of evicted entries.

valuesData

Collection<Data> valuesData()

getMapContainer

MapContainer getMapContainer()

entrySetData

Set<Map.Entry<Data,Data>> entrySetData()

getMapEntry

Map.Entry<Data,Object> getMapEntry(Data dataKey,
                                 long now)

flush

void flush()

clearPartition

void clearPartition()

reset

void reset()

forceUnlock

boolean forceUnlock(Data dataKey)

getHeapCost

long getHeapCost()

isLoaded

boolean isLoaded()

checkIfLoaded

void checkIfLoaded()

setLoaded

void setLoaded(boolean loaded)

clear

int clear()

isEmpty

boolean isEmpty()

evictExpiredEntries

void evictExpiredEntries(int percentage,
                       boolean backup)

Do expiration operations.

Parameters:

percentage - of max expirables according to the record store size.

backup - true if a backup partition, otherwise false.

isExpirable

boolean isExpirable()

Returns:

true if record store has at least one candidate entry for expiration else return false.

loadAllFromStore

void loadAllFromStore(List<Data> keys,
                    boolean replaceExistingValues)

Loads all keys from defined map store.

Parameters:

keys - keys to be loaded.

replaceExistingValues - true if need to replace existing values otherwise false

getMapDataStore

MapDataStore<Data,Object> getMapDataStore()

getPartitionId

int getPartitionId()

getRecordOrNull

Record getRecordOrNull(Data key)

Returns live record or null if record is already expired. Does not load missing keys from a map store.

Parameters:

key - key to be accessed

Returns:

live record or null

See Also:

get(com.hazelcast.nio.serialization.Data, boolean)

evictEntries

void evictEntries(long now,
                boolean backup)