org.apache.ignite.internal.processors.cache.distributed.dht

Class GridDhtCacheEntry

java.lang.Object

org.apache.ignite.internal.util.lang.GridMetadataAwareAdapter

org.apache.ignite.internal.processors.cache.GridCacheMapEntry

org.apache.ignite.internal.processors.cache.distributed.GridDistributedCacheEntry

org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtCacheEntry

All Implemented Interfaces:

GridCacheEntryEx

public class GridDhtCacheEntry
extends GridDistributedCacheEntry

Replicated cache entry.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	GridDhtCacheEntry.ReaderId Reader ID.

Nested classes/interfaces inherited from class org.apache.ignite.internal.util.lang.GridMetadataAwareAdapter

GridMetadataAwareAdapter.EntryKey

Field Summary

Fields inherited from class org.apache.ignite.internal.processors.cache.GridCacheMapEntry

ATOMIC_VER_COMPARATOR, cctx, flags, key, log, logRef, startVer, val, ver

Constructor Summary

Constructors

Constructor and Description
GridDhtCacheEntry(GridCacheContext ctx, AffinityTopologyVersion topVer, KeyCacheObject key)

Method Summary

Modifier and Type	Method and Description
IgniteInternalFuture<Boolean>	addReader(UUID nodeId, long msgId, AffinityTopologyVersion topVer)
protected String	cacheName()
Collection<GridDhtCacheEntry.ReaderId>	checkReaders()
protected Collection<GridDhtCacheEntry.ReaderId>	checkReadersLocked()
boolean	clearInternal(GridCacheVersion ver, GridCacheObsoleteEntryExtras extras) Marks entry as obsolete and, if possible or required, removes it from swap storage.
void	clearReader(UUID nodeId)
void	clearReaders() Clears all readers (usually when partition becomes invalid and ready for eviction).
protected void	decrementMapPublicSize() Decrements public size of map.
protected boolean	hasReaders()
protected void	incrementMapPublicSize() Increments public size of map.
boolean	isDht()
protected GridDhtLocalPartition	localPartition()
GridCacheMvccCandidate	mappings(GridCacheVersion ver, Collection<ClusterNode> dhtNodeIds, Collection<ClusterNode> nearNodeIds) Sets mappings into entry.
int	memorySize()
protected long	nextPartitionCounter(AffinityTopologyVersion topVer, boolean primary, Long primaryCntr)
void	onMarkedObsolete() This method should be called each time entry is marked obsolete other than by calling GridCacheEntryEx.markObsolete(GridCacheVersion).
void	onUnlock() Calls GridDhtLocalPartition.onUnlock() for this entry's partition.
int	partition()
boolean	partitionValid()
GridDhtCacheEntry.ReaderId	readerId(UUID nodeId)
Collection<UUID>	readers()
GridDhtCacheEntry.ReaderId[]	readersLocked()
GridCacheMvccCandidate	removeLock() Unlocks local lock.
boolean	removeLock(GridCacheVersion ver)
void	removeMapping(GridCacheVersion ver, ClusterNode mappedNode)
boolean	removeReader(UUID nodeId, long msgId)
boolean	tmLock(IgniteInternalTx tx, long timeout, GridCacheVersion serOrder, GridCacheVersion serReadVer, boolean read) This locks is called by transaction manager during prepare step for optimistic transactions.
String	toString()
IgniteBiTuple<GridCacheVersion,CacheObject>	versionedValue(AffinityTopologyVersion topVer)

Methods inherited from class org.apache.ignite.internal.processors.cache.distributed.GridDistributedCacheEntry

addLocal, addRemote, addRemoved, checkCallbacks, checkRemoved, checkThreadChain, doneRemote, readyLock, readyNearLock, recheck, remoteMvccSnapshot, removeExplicitNodeLocks, txUnlock

Methods inherited from class org.apache.ignite.internal.processors.cache.GridCacheMapEntry

candidate, candidate, checkObsolete, checkOwnerChanged, checkSerializableReadVersion, clear, clearReserveForLoad, context, deleted, deletedUnlocked, deletedUnlocked, detached, equals, evictInternal, evictionDisabled, expireTime, expireTimeExtras, expireTimeUnlocked, hashCode, hasLockCandidate, hasLockCandidate, hasLockCandidateUnsafe, hasValue, hasValueUnlocked, info, initialValue, innerGet, innerGetAndReserveForLoad, innerGetVersioned, innerReload, innerRemove, innerSet, innerUpdate, innerUpdateLocal, invalidate, isInternal, isLocal, isNear, isNew, isNewLocked, isReplicated, isStartVersion, key, keyValue, localCandidate, localCandidates, localOwner, lockedBy, lockedByAny, lockedByCurrentThread, lockedByThread, lockedByThread, lockedByThread, lockedByThreadUnsafe, lockedByUnsafe, lockedLocally, lockedLocallyByIdOrThread, lockedLocallyUnsafe, lockEntry, logTxUpdate, logUpdate, markObsolete, markObsolete0, markObsoleteIfEmpty, markObsoleteVersion, mvccAllLocal, mvccExtras, mvccExtras, obsolete, obsolete, obsoleteOrDeleted, obsoleteVersion, obsoleteVersionExtras, onInvalidate, onTtlExpired, onUpdateFinished, peek, peek, peekVisibleValue, rawExpireTime, rawGet, rawPut, rawTtl, readThrough, recordNodeId, removeValue, startVersion, storeValue, storeValue, ttl, ttlAndExpireTimeExtras, ttlExtras, txKey, unlockEntry, unswap, unswap, unswap, unswap, update, updateIndex, updateTtl, valid, value, valueBytes, valueBytes, valueBytes0, version, versionedEntry, versionedValue, visitable, wrap, wrapEviction, wrapLazyValue, wrapVersioned

Methods inherited from class org.apache.ignite.internal.util.lang.GridMetadataAwareAdapter

addMeta, addMetaIfAbsent, addMetaIfAbsent, allMeta, clone, copyMeta, copyMeta, hasMeta, hasMeta, meta, putMetaIfAbsent, readExternalMeta, removeAllMeta, removeMeta, removeMeta, replaceMeta, writeExternalMeta

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.ignite.internal.processors.cache.GridCacheEntryEx

addMeta, hasMeta, meta, putMetaIfAbsent, removeMeta, removeMeta, replaceMeta

Constructor Detail

GridDhtCacheEntry

public GridDhtCacheEntry(GridCacheContext ctx,
                         AffinityTopologyVersion topVer,
                         KeyCacheObject key)

Parameters:

ctx - Cache context.

topVer - Topology version at the time of creation (if negative, then latest topology is assumed).

key - Cache key.

Method Detail

nextPartitionCounter

protected long nextPartitionCounter(AffinityTopologyVersion topVer,
                                    boolean primary,
                                    @Nullable
                                    Long primaryCntr)

Overrides:

nextPartitionCounter in class GridCacheMapEntry

Parameters:

topVer - Topology version for current operation.

primary - Primary node update flag.

primaryCntr - Counter assigned on primary node.

Returns:

Update counter.

memorySize

public int memorySize()
               throws IgniteCheckedException

Specified by:

memorySize in interface GridCacheEntryEx

Overrides:

memorySize in class GridCacheMapEntry

Returns:

Memory size.

Throws:

IgniteCheckedException - If failed.

partition

public int partition()

Specified by:

partition in interface GridCacheEntryEx

Overrides:

partition in class GridCacheMapEntry

Returns:

Partition ID.

localPartition

protected GridDhtLocalPartition localPartition()

Overrides:

localPartition in class GridCacheMapEntry

Returns:

Local partition that owns this entry.

isDht

public boolean isDht()

Specified by:

isDht in interface GridCacheEntryEx

Overrides:

isDht in class GridCacheMapEntry

Returns:

True if DHT.

partitionValid

public boolean partitionValid()

Specified by:

partitionValid in interface GridCacheEntryEx

Overrides:

partitionValid in class GridCacheMapEntry

Returns:

True if partition is in valid.

onMarkedObsolete

public void onMarkedObsolete()

This method should be called each time entry is marked obsolete other than by calling GridCacheEntryEx.markObsolete(GridCacheVersion).

Specified by:

onMarkedObsolete in interface GridCacheEntryEx

Overrides:

onMarkedObsolete in class GridCacheMapEntry

tmLock

public boolean tmLock(IgniteInternalTx tx,
                      long timeout,
                      @Nullable
                      GridCacheVersion serOrder,
                      GridCacheVersion serReadVer,
                      boolean read)
               throws GridCacheEntryRemovedException,
                      GridDistributedLockCancelledException

This locks is called by transaction manager during prepare step for optimistic transactions.

Specified by:

tmLock in interface GridCacheEntryEx

Overrides:

tmLock in class GridDistributedCacheEntry

Parameters:

tx - Cache transaction.

timeout - Timeout for lock acquisition.

serOrder - Version for serializable transactions ordering.

serReadVer - Optional read entry version for optimistic serializable transaction.

read - Read lock flag.

Returns:

True if lock was acquired, false otherwise.

Throws:

GridCacheEntryRemovedException - If this entry is obsolete.

GridDistributedLockCancelledException - If lock has been cancelled.

removeLock

public GridCacheMvccCandidate removeLock()

Unlocks local lock.

Overrides:

removeLock in class GridDistributedCacheEntry

Returns:

Removed candidate, or null if thread still holds the lock.

removeLock

public boolean removeLock(GridCacheVersion ver)
                   throws GridCacheEntryRemovedException

Specified by:

removeLock in interface GridCacheEntryEx

Overrides:

removeLock in class GridDistributedCacheEntry

Parameters:

ver - Removes lock.

Returns:

True If lock has been removed.

Throws:

GridCacheEntryRemovedException - If this entry has been removed from cache.

onUnlock

public void onUnlock()

Calls GridDhtLocalPartition.onUnlock() for this entry's partition.

Specified by:

onUnlock in interface GridCacheEntryEx

Overrides:

onUnlock in class GridCacheMapEntry

versionedValue

@Nullable
public IgniteBiTuple<GridCacheVersion,CacheObject> versionedValue(AffinityTopologyVersion topVer)
                                                                     throws GridCacheEntryRemovedException

Parameters:

topVer - Topology version.

Returns:

Tuple with version and value of this entry, or null if entry is new.

Throws:

GridCacheEntryRemovedException - If entry has been removed.

readers

public Collection<UUID> readers()
                         throws GridCacheEntryRemovedException

Returns:

Readers.

Throws:

GridCacheEntryRemovedException - If removed.

readerId

@Nullable
public GridDhtCacheEntry.ReaderId readerId(UUID nodeId)

Parameters:

nodeId - Node ID.

Returns:

reader ID.

addReader

@Nullable
public IgniteInternalFuture<Boolean> addReader(UUID nodeId,
                                                         long msgId,
                                                         AffinityTopologyVersion topVer)
                                                  throws GridCacheEntryRemovedException

Parameters:

nodeId - Reader to add.

msgId - Message ID.

topVer - Topology version.

Returns:

Future for all relevant transactions that were active at the time of adding reader, or null if reader was added

Throws:

GridCacheEntryRemovedException - If entry was removed.

removeReader

public boolean removeReader(UUID nodeId,
                            long msgId)
                     throws GridCacheEntryRemovedException

Parameters:

nodeId - Reader to remove.

msgId - Message ID.

Returns:

True if reader was removed as a result of this operation.

Throws:

GridCacheEntryRemovedException - If entry was removed.

clearReaders

public void clearReaders()

Clears all readers (usually when partition becomes invalid and ready for eviction).

Overrides:

clearReaders in class GridCacheMapEntry

clearReader

public void clearReader(UUID nodeId)
                 throws GridCacheEntryRemovedException

Overrides:

clearReader in class GridCacheMapEntry

Parameters:

nodeId - Node ID to clear.

Throws:

GridCacheEntryRemovedException - If removed.

clearInternal

public boolean clearInternal(GridCacheVersion ver,
                             GridCacheObsoleteEntryExtras extras)
                      throws IgniteCheckedException

Marks entry as obsolete and, if possible or required, removes it from swap storage.

Parameters:

ver - Obsolete version.

Returns:

True if entry was not being used, passed the filter and could be removed.

Throws:

IgniteCheckedException - If failed to remove from swap.

checkReaders

public Collection<GridDhtCacheEntry.ReaderId> checkReaders()
                                                    throws GridCacheEntryRemovedException

Returns:

Collection of readers after check.

Throws:

GridCacheEntryRemovedException - If removed.

readersLocked

@Nullable
public GridDhtCacheEntry.ReaderId[] readersLocked()

Returns:

Readers.

checkReadersLocked

protected Collection<GridDhtCacheEntry.ReaderId> checkReadersLocked()
                                                             throws GridCacheEntryRemovedException

Returns:

Collection of readers after check.

Throws:

GridCacheEntryRemovedException - If removed.

hasReaders

protected boolean hasReaders()
                      throws GridCacheEntryRemovedException

Overrides:

hasReaders in class GridCacheMapEntry

Returns:

true if entry has readers. It makes sense only for dht entry.

Throws:

GridCacheEntryRemovedException - If removed.

mappings

@Nullable
public GridCacheMvccCandidate mappings(GridCacheVersion ver,
                                                 Collection<ClusterNode> dhtNodeIds,
                                                 Collection<ClusterNode> nearNodeIds)
                                          throws GridCacheEntryRemovedException

Sets mappings into entry.

Parameters:

ver - Version.

Returns:

Candidate, if one existed for the version, or null if candidate was not found.

Throws:

GridCacheEntryRemovedException - If removed.

removeMapping

public void removeMapping(GridCacheVersion ver,
                          ClusterNode mappedNode)

Parameters:

ver - Version.

mappedNode - Mapped node to remove.

cacheName

protected final String cacheName()

Returns:

Cache name.

toString

public String toString()

Overrides:

toString in class GridDistributedCacheEntry

incrementMapPublicSize

protected void incrementMapPublicSize()

Increments public size of map.

Overrides:

incrementMapPublicSize in class GridCacheMapEntry

decrementMapPublicSize

protected void decrementMapPublicSize()

Decrements public size of map.

Overrides:

decrementMapPublicSize in class GridCacheMapEntry