org.gridgain.grid.kernal.processors.cache.distributed

Class GridDistributedTxPrepareRequest<K,V>

java.lang.Object

org.gridgain.grid.util.direct.GridTcpCommunicationMessageAdapter

org.gridgain.grid.kernal.processors.cache.GridCacheMessage<K,V>

org.gridgain.grid.kernal.processors.cache.distributed.GridDistributedBaseMessage<K,V>

org.gridgain.grid.kernal.processors.cache.distributed.GridDistributedTxPrepareRequest<K,V>

All Implemented Interfaces:

Serializable, Cloneable, GridCacheDeployable, GridCacheVersionable

Direct Known Subclasses:

GridDhtTxPrepareRequest, GridNearTxPrepareRequest

public class GridDistributedTxPrepareRequest<K,V>
extends GridDistributedBaseMessage<K,V>

Transaction prepare request for optimistic and eventually consistent transactions.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.gridgain.grid.kernal.processors.cache.distributed.GridDistributedBaseMessage

ver

Fields inherited from class org.gridgain.grid.kernal.processors.cache.GridCacheMessage

CACHE_MSG_INDEX_FIELD_NAME, MAX_CACHE_MSG_LOOKUP_INDEX

Fields inherited from class org.gridgain.grid.util.direct.GridTcpCommunicationMessageAdapter

BIT_SET_NOT_READ, BOOLEAN_ARR_NOT_READ, BYTE_ARR_LIST_NOT_READ, BYTE_ARR_NOT_READ, CACHE_VER_NOT_READ, CHAR_ARR_NOT_READ, CLOCK_DELTA_VER_NOT_READ, commState, DHT_PART_EXCHANGE_ID_NOT_READ, DOUBLE_ARR_NOT_READ, DR_INT_REQ_ENTRY_NOT_READ, ENUM_NOT_READ, FLOAT_ARR_NOT_READ, GRID_UUID_NOT_READ, INT_ARR_NOT_READ, LONG_ARR_NOT_READ, LONG_LIST_NOT_READ, MSG_NOT_READ, NULL, SHORT_ARR_NOT_READ, STR_NOT_READ, UUID_NOT_READ, VAL_BYTES_NOT_READ

Constructor Summary

Constructors

Constructor and Description
GridDistributedTxPrepareRequest() Required by Externalizable.
GridDistributedTxPrepareRequest(GridCacheTxEx<K,V> tx, Collection<GridCacheTxEntry<K,V>> reads, Collection<GridCacheTxEntry<K,V>> writes, Object grpLockKey, boolean partLock, Map<UUID,Collection<UUID>> txNodes)

Method Summary

Methods

Modifier and Type	Method and Description
void	addDhtVersion(K key, GridCacheVersion dhtVer) Adds version to be verified on remote node.
GridTcpCommunicationMessageAdapter	clone()
protected void	clone0(GridTcpCommunicationMessageAdapter _msg) Clones all fields of the provided message to this.
GridCacheVersion	commitVersion()
GridCacheTxConcurrency	concurrency()
Map<K,GridCacheVersion>	dhtVersions()
byte	directType()
void	finishUnmarshal(GridCacheContext<K,V> ctx, ClassLoader ldr) This method is called after the message is deserialized and is responsible for unmarshalling state marshalled in GridCacheMessage.prepareMarshal(GridCacheContext) method.
Object	groupLockKey()
boolean	isInvalidate()
GridCacheTxIsolation	isolation()
boolean	partitionLock()
void	prepareMarshal(GridCacheContext<K,V> ctx) This method is called before the whole message is serialized and is responsible for pre-marshalling state.
boolean	readFrom(ByteBuffer buf)
Collection<GridCacheTxEntry<K,V>>	reads()
protected void	reads(Collection<GridCacheTxEntry<K,V>> reads)
long	threadId()
long	timeout()
String	toString()
Map<UUID,Collection<UUID>>	transactionNodes()
int	txSize()
Collection<GridCacheTxEntry<K,V>>	writes()
protected void	writes(Collection<GridCacheTxEntry<K,V>> writes)
boolean	writeTo(ByteBuffer buf)

Methods inherited from class org.gridgain.grid.kernal.processors.cache.distributed.GridDistributedBaseMessage

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

Methods inherited from class org.gridgain.grid.kernal.processors.cache.GridCacheMessage

allowForStartup, classError, deployInfo, ignoreClassErrors, lookupIndex, marshalBooleanLinkedMap, marshalCollection, marshalFilter, marshalInfo, marshalInfos, marshalTx, marshalValuesCollection, messageId, nextIndexId, onClassError, prepare, prepareFilter, prepareObject, prepareObjects, topologyVersion, unmarshalBooleanLinkedMap, unmarshalCollection, unmarshalFilter, unmarshalInfo, unmarshalInfos, unmarshalTx, unmarshalValueBytesCollection

Methods inherited from class org.gridgain.grid.util.direct.GridTcpCommunicationMessageAdapter

arrayIterator, messageReader, messageWriter

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.gridgain.grid.kernal.processors.cache.GridCacheDeployable

deployInfo, prepare

Constructor Detail

GridDistributedTxPrepareRequest

public GridDistributedTxPrepareRequest()

Required by Externalizable.

GridDistributedTxPrepareRequest

public GridDistributedTxPrepareRequest(GridCacheTxEx<K,V> tx,
                               @Nullable
                               Collection<GridCacheTxEntry<K,V>> reads,
                               Collection<GridCacheTxEntry<K,V>> writes,
                               Object grpLockKey,
                               boolean partLock,
                               Map<UUID,Collection<UUID>> txNodes)

Parameters:

tx - Cache transaction.

reads - Read entries.

writes - Write entries.

grpLockKey - Group lock key.

partLock - True if preparing group-lock transaction with partition lock.

txNodes - Transaction nodes mapping.

Method Detail

transactionNodes

public Map<UUID,Collection<UUID>> transactionNodes()

Returns:

Transaction nodes mapping.

addDhtVersion

public void addDhtVersion(K key,
                 @Nullable
                 GridCacheVersion dhtVer)

Adds version to be verified on remote node.

Parameters:

key - Key for which version is verified.

dhtVer - DHT version to check.

dhtVersions

public Map<K,GridCacheVersion> dhtVersions()

Returns:

Map of versions to be verified.

threadId

public long threadId()

Returns:

Thread ID.

commitVersion

public GridCacheVersion commitVersion()

Returns:

Commit version.

isInvalidate

public boolean isInvalidate()

Returns:

Invalidate flag.

timeout

public long timeout()

Returns:

Transaction timeout.

concurrency

public GridCacheTxConcurrency concurrency()

Returns:

Concurrency.

isolation

public GridCacheTxIsolation isolation()

Returns:

Isolation level.

reads

public Collection<GridCacheTxEntry<K,V>> reads()

Returns:

Read set.

writes

public Collection<GridCacheTxEntry<K,V>> writes()

Returns:

Write entries.

reads

protected void reads(Collection<GridCacheTxEntry<K,V>> reads)

Parameters:

reads - Reads.

writes

protected void writes(Collection<GridCacheTxEntry<K,V>> writes)

Parameters:

writes - Writes.

groupLockKey

@Nullable
public Object groupLockKey()

Returns:

Group lock key if preparing group-lock transaction.

partitionLock

public boolean partitionLock()

Returns:

True if preparing group-lock transaction with partition lock.

txSize

public int txSize()

Returns:

Expected transaction size.

prepareMarshal

public void prepareMarshal(GridCacheContext<K,V> ctx)
                    throws GridException

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

Overrides:

prepareMarshal in class GridDistributedBaseMessage<K,V>

Parameters:

ctx - Cache context.

Throws:

GridException - If failed.

finishUnmarshal

public void finishUnmarshal(GridCacheContext<K,V> ctx,
                   ClassLoader ldr)
                     throws GridException

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

Overrides:

finishUnmarshal in class GridDistributedBaseMessage<K,V>

Parameters:

ctx - Context.

ldr - Class loader.

Throws:

GridException - If failed.

clone

public GridTcpCommunicationMessageAdapter clone()

Specified by:

clone in class GridTcpCommunicationMessageAdapter

clone0

protected void clone0(GridTcpCommunicationMessageAdapter _msg)

Clones all fields of the provided message to this.

Overrides:

clone0 in class GridDistributedBaseMessage<K,V>

Parameters:

_msg - Message to clone from.

writeTo

public boolean writeTo(ByteBuffer buf)

Overrides:

writeTo in class GridDistributedBaseMessage<K,V>

Parameters:

buf - Byte buffer.

Returns:

Whether message was fully written.

readFrom

public boolean readFrom(ByteBuffer buf)

Overrides:

readFrom in class GridDistributedBaseMessage<K,V>

Parameters:

buf - Byte buffer.

Returns:

Whether message was fully read.

directType

public byte directType()

Specified by:

directType in class GridTcpCommunicationMessageAdapter

Returns:

Message type.

toString

public String toString()

Overrides:

toString in class GridDistributedBaseMessage<K,V>