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

Class GridDhtTxPrepareRequest

java.lang.Object

org.apache.ignite.internal.processors.cache.GridCacheMessage

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

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

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

All Implemented Interfaces:

Serializable, GridCacheDeployable, GridCacheVersionable, Message

public class GridDhtTxPrepareRequest
extends GridDistributedTxPrepareRequest

DHT prepare request.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.ignite.internal.processors.cache.distributed.GridDistributedBaseMessage

ver

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

CACHE_MSG_INDEX_FIELD_NAME, cacheId, MAX_CACHE_MSG_LOOKUP_INDEX

Constructor Summary

Constructors

Constructor and Description
GridDhtTxPrepareRequest() Empty constructor required for Externalizable.
GridDhtTxPrepareRequest(IgniteUuid futId, IgniteUuid miniId, long topVer, GridDhtTxLocalAdapter tx, Collection<IgniteTxEntry> dhtWrites, Collection<IgniteTxEntry> nearWrites, IgniteTxKey grpLockKey, boolean partLock, Map<UUID,Collection<UUID>> txNodes, GridCacheVersion nearXidVer, boolean last, boolean onePhaseCommit, UUID subjId, int taskNameHash)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	allowForStartup()
byte	directType() Gets message type.
byte	fieldsCount() Gets fields count.
void	finishUnmarshal(GridCacheSharedContext ctx, ClassLoader ldr) This method is called after the message is deserialized and is responsible for unmarshalling state marshalled in GridCacheMessage.prepareMarshal(GridCacheSharedContext) method.
IgniteUuid	futureId()
boolean	invalidateNearEntry(int idx)
void	invalidateNearEntry(int idx, boolean invalidate)
boolean	last()
void	markKeyForPreload(int idx) Marks last added key for preloading.
IgniteUuid	miniId()
UUID	nearNodeId()
Collection<IgniteTxEntry>	nearWrites()
GridCacheVersion	nearXidVersion()
boolean	needPreloadKey(int idx) Checks whether entry info should be sent to primary node from backup.
Map<IgniteTxKey,GridCacheVersion>	owned()
void	owned(IgniteTxKey key, GridCacheVersion ownerMapped) Sets owner and its mapped version.
void	prepareMarshal(GridCacheSharedContext ctx) This method is called before the whole message is serialized and is responsible for pre-marshalling state.
boolean	readFrom(ByteBuffer buf, MessageReader reader) Reads this message from provided byte buffer.
UUID	subjectId()
int	taskNameHash()
long	topologyVersion() Gets topology version or -1 in case of topology version is not required for this message.
String	toString()
boolean	writeTo(ByteBuffer buf, MessageWriter writer) Writes this message to provided byte buffer.

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

addDhtVersion, concurrency, dhtVersions, groupLockKey, isInvalidate, isolation, onePhaseCommit, partitionLock, policy, reads, reads, system, threadId, timeout, transactionNodes, txSize, writes, writes, writeVersion

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

candidatesByIndex, candidatesByIndex, candidatesByKey, candidatesByKey, candidatesByKey, committedVersions, completedVersions, keysCount, rolledbackVersions, version, version

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

cacheId, cacheId, classError, deployInfo, finishUnmarshalCacheObjects, finishUnmarshalCacheObjects, ignoreClassErrors, lookupIndex, marshalBooleanLinkedMap, marshalCollection, marshalInfo, marshalInfos, marshalInvokeArguments, marshalTx, messageId, nextIndexId, onClassError, prepare, prepareMarshalCacheObjects, prepareMarshalCacheObjects, prepareObject, transferExpiryPolicy, unmarshalBooleanLinkedMap, unmarshalCollection, unmarshalInfo, unmarshalInfos, unmarshalInvokeArguments, unmarshalTx

Methods inherited from class java.lang.Object

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

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

deployInfo, prepare

Constructor Detail

GridDhtTxPrepareRequest

public GridDhtTxPrepareRequest()

Empty constructor required for Externalizable.

GridDhtTxPrepareRequest

public GridDhtTxPrepareRequest(IgniteUuid futId,
                       IgniteUuid miniId,
                       long topVer,
                       GridDhtTxLocalAdapter tx,
                       Collection<IgniteTxEntry> dhtWrites,
                       Collection<IgniteTxEntry> nearWrites,
                       IgniteTxKey grpLockKey,
                       boolean partLock,
                       Map<UUID,Collection<UUID>> txNodes,
                       GridCacheVersion nearXidVer,
                       boolean last,
                       boolean onePhaseCommit,
                       UUID subjId,
                       int taskNameHash)

Parameters:

futId - Future ID.

miniId - Mini future ID.

topVer - Topology version.

tx - Transaction.

dhtWrites - DHT writes.

nearWrites - Near writes.

grpLockKey - Group lock key if preparing group-lock transaction.

partLock - True if group-lock transaction locks partition.

txNodes - Transaction nodes mapping.

nearXidVer - Near transaction ID.

last - True if this is last prepare request for node.

onePhaseCommit - One phase commit flag.

Method Detail

last

public boolean last()

Returns:

True if this is last prepare request for node.

nearXidVersion

public GridCacheVersion nearXidVersion()

Returns:

Near transaction ID.

allowForStartup

public boolean allowForStartup()

Overrides:

allowForStartup in class GridCacheMessage

Returns:

True if this message is preloader message.

nearNodeId

public UUID nearNodeId()

Returns:

Near node ID.

subjectId

@Nullable
public UUID subjectId()

Returns:

Subject ID.

taskNameHash

public int taskNameHash()

Returns:

Task name hash.

nearWrites

public Collection<IgniteTxEntry> nearWrites()

Returns:

Near writes.

invalidateNearEntry

public void invalidateNearEntry(int idx,
                       boolean invalidate)

Parameters:

idx - Entry index to set invalidation flag.

invalidate - Invalidation flag value.

invalidateNearEntry

public boolean invalidateNearEntry(int idx)

Parameters:

idx - Index to get invalidation flag value.

Returns:

Invalidation flag value.

markKeyForPreload

public void markKeyForPreload(int idx)

Marks last added key for preloading.

needPreloadKey

public boolean needPreloadKey(int idx)

Checks whether entry info should be sent to primary node from backup.

Parameters:

idx - Index.

Returns:

True if value should be sent, false otherwise.

futureId

public IgniteUuid futureId()

Returns:

Future ID.

miniId

public IgniteUuid miniId()

Returns:

Mini future ID.

topologyVersion

public long topologyVersion()

Description copied from class: GridCacheMessage

Gets topology version or -1 in case of topology version is not required for this message.

Overrides:

topologyVersion in class GridCacheMessage

Returns:

Topology version.

owned

public void owned(IgniteTxKey key,
         GridCacheVersion ownerMapped)

Sets owner and its mapped version.

Parameters:

key - Key.

ownerMapped - Owner mapped version.

owned

public Map<IgniteTxKey,GridCacheVersion> owned()

Returns:

Owned versions map.

prepareMarshal

public void prepareMarshal(GridCacheSharedContext ctx)
                    throws IgniteCheckedException

This method is called before the whole message is serialized and is responsible for pre-marshalling state.

Overrides:

prepareMarshal in class GridDistributedTxPrepareRequest

Parameters:

ctx -

Throws:

IgniteCheckedException - If failed.

finishUnmarshal

public void finishUnmarshal(GridCacheSharedContext ctx,
                   ClassLoader ldr)
                     throws IgniteCheckedException

This method is called after the message is deserialized and is responsible for unmarshalling state marshalled in GridCacheMessage.prepareMarshal(GridCacheSharedContext) method.

Overrides:

finishUnmarshal in class GridDistributedTxPrepareRequest

Parameters:

ctx - Context.

ldr - Class loader.

Throws:

IgniteCheckedException - If failed.

toString

public String toString()

Overrides:

toString in class GridDistributedTxPrepareRequest

writeTo

public boolean writeTo(ByteBuffer buf,
              MessageWriter writer)

Writes this message to provided byte buffer.

Specified by:

writeTo in interface Message

Overrides:

writeTo in class GridDistributedTxPrepareRequest

Parameters:

buf - Byte buffer.

writer - Writer.

Returns:

Whether message was fully written.

readFrom

public boolean readFrom(ByteBuffer buf,
               MessageReader reader)

Reads this message from provided byte buffer.

Specified by:

readFrom in interface Message

Overrides:

readFrom in class GridDistributedTxPrepareRequest

Parameters:

buf - Byte buffer.

reader - Reader.

Returns:

Whether message was fully read.

directType

public byte directType()

Gets message type.

Specified by:

directType in interface Message

Overrides:

directType in class GridDistributedTxPrepareRequest

Returns:

Message type.

fieldsCount

public byte fieldsCount()

Gets fields count.

Specified by:

fieldsCount in interface Message

Overrides:

fieldsCount in class GridDistributedTxPrepareRequest

Returns:

Fields count.