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

Class GridDhtLockRequest<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.GridDistributedLockRequest<K,V>

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

All Implemented Interfaces:

Serializable, Cloneable, GridCacheDeployable, GridCacheVersionable

public class GridDhtLockRequest<K,V>
extends GridDistributedLockRequest<K,V>

DHT lock request.

See Also:

Serialized Form

Field Summary

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

idx

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
GridDhtLockRequest() Empty constructor required for Externalizable.
GridDhtLockRequest(UUID nodeId, GridCacheVersion nearXidVer, long threadId, GridUuid futId, GridUuid miniId, GridCacheVersion lockVer, long topVer, boolean isInTx, boolean isRead, GridCacheTxIsolation isolation, boolean isInvalidate, long timeout, int dhtCnt, int nearCnt, int txSize, Object grpLockKey, boolean partLock, UUID subjId)

Method Summary

Methods

Modifier and Type	Method and Description
void	addDhtKey(K key, byte[] keyBytes, GridCacheTxEntry<K,V> writeEntry, GridCacheVersion drVer, boolean invalidateEntry, GridCacheContext<K,V> ctx) Adds a DHT key.
void	addNearKey(K key, byte[] keyBytes, GridCacheContext<K,V> ctx) Adds a Near key.
boolean	allowForStartup()
GridTcpCommunicationMessageAdapter	clone()
protected void	clone0(GridTcpCommunicationMessageAdapter _msg) Clones all fields of the provided message to this.
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.
boolean	invalidateNearEntry(int idx)
GridUuid	miniId()
List<byte[]>	nearKeyBytes()
List<K>	nearKeys()
UUID	nearNodeId()
GridCacheVersion	owned(K key)
void	owned(K key, byte[] keyBytes, GridCacheVersion ownerMapped) Sets owner and its mapped version.
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)
UUID	subjectId()
long	topologyVersion() Gets topology version or -1 in case of topology version is not required for this message.
String	toString()
boolean	writeTo(ByteBuffer buf)

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

addKeyBytes, drVersionByIndex, drVersionByIndex, drVersions, futureId, groupLock, groupLockKey, inTx, isInvalidate, isolation, keyBytes, keys, nearXidVersion, nodeId, partitionLock, returnFlags, returnValue, threadId, timeout, txRead, txSize, writeEntries

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

classError, deployInfo, ignoreClassErrors, lookupIndex, marshalBooleanLinkedMap, marshalCollection, marshalFilter, marshalInfo, marshalInfos, marshalTx, marshalValuesCollection, messageId, nextIndexId, onClassError, prepare, prepareFilter, prepareObject, prepareObjects, 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

GridDhtLockRequest

public GridDhtLockRequest()

Empty constructor required for Externalizable.

GridDhtLockRequest

public GridDhtLockRequest(UUID nodeId,
                  GridCacheVersion nearXidVer,
                  long threadId,
                  GridUuid futId,
                  GridUuid miniId,
                  GridCacheVersion lockVer,
                  long topVer,
                  boolean isInTx,
                  boolean isRead,
                  GridCacheTxIsolation isolation,
                  boolean isInvalidate,
                  long timeout,
                  int dhtCnt,
                  int nearCnt,
                  int txSize,
                  @Nullable
                  Object grpLockKey,
                  boolean partLock,
                  @Nullable
                  UUID subjId)

Parameters:

nodeId - Node ID.

nearXidVer - Near transaction ID.

threadId - Thread ID.

futId - Future ID.

miniId - Mini future ID.

lockVer - Cache version.

topVer - Topology version.

isInTx - True if implicit transaction lock.

isRead - Indicates whether implicit lock is for read or write operation.

isolation - Transaction isolation.

isInvalidate - Invalidation flag.

timeout - Lock timeout.

dhtCnt - DHT count.

nearCnt - Near count.

txSize - Expected transaction size.

grpLockKey - Group lock key.

partLock - True if partition lock.

Method Detail

allowForStartup

public boolean allowForStartup()

Overrides:

allowForStartup in class GridCacheMessage<K,V>

Returns:

True if this message is preloader message.

nearNodeId

public UUID nearNodeId()

Returns:

Near node ID.

subjectId

public UUID subjectId()

Returns:

Subject 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<K,V>

Returns:

Topology version.

nearKeyBytes

public List<byte[]> nearKeyBytes()

Returns:

Near keys.

addNearKey

public void addNearKey(K key,
              byte[] keyBytes,
              GridCacheContext<K,V> ctx)
                throws GridException

Adds a Near key.

Parameters:

key - Key.

keyBytes - Key bytes.

ctx - Context.

Throws:

GridException - If failed.

nearKeys

public List<K> nearKeys()

Returns:

Near keys.

addDhtKey

public void addDhtKey(K key,
             byte[] keyBytes,
             GridCacheTxEntry<K,V> writeEntry,
             @Nullable
             GridCacheVersion drVer,
             boolean invalidateEntry,
             GridCacheContext<K,V> ctx)
               throws GridException

Adds a DHT key.

Parameters:

key - Key.

keyBytes - Key bytes.

writeEntry - Write entry.

drVer - DR version.

invalidateEntry - Flag indicating whether node should attempt to invalidate reader.

ctx - Context.

Throws:

GridException - If failed.

owned

public void owned(K key,
         byte[] keyBytes,
         GridCacheVersion ownerMapped)

Sets owner and its mapped version.

Parameters:

key - Key.

keyBytes - Key bytes.

ownerMapped - Owner mapped version.

owned

@Nullable
public GridCacheVersion owned(K key)

Parameters:

key - Key.

Returns:

Owner and its mapped versions.

invalidateNearEntry

public boolean invalidateNearEntry(int idx)

Parameters:

idx - Entry index to check.

Returns:

True if near entry should be invalidated.

miniId

public GridUuid miniId()

Returns:

Mini ID.

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 GridDistributedLockRequest<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 GridDistributedLockRequest<K,V>

Parameters:

ctx - Context.

ldr - Class loader.

Throws:

GridException - If failed.

clone

public GridTcpCommunicationMessageAdapter clone()

Overrides:

clone in class GridDistributedLockRequest<K,V>

clone0

protected void clone0(GridTcpCommunicationMessageAdapter _msg)

Clones all fields of the provided message to this.

Overrides:

clone0 in class GridDistributedLockRequest<K,V>

Parameters:

_msg - Message to clone from.

writeTo

public boolean writeTo(ByteBuffer buf)

Overrides:

writeTo in class GridDistributedLockRequest<K,V>

Parameters:

buf - Byte buffer.

Returns:

Whether message was fully written.

readFrom

public boolean readFrom(ByteBuffer buf)

Overrides:

readFrom in class GridDistributedLockRequest<K,V>

Parameters:

buf - Byte buffer.

Returns:

Whether message was fully read.

directType

public byte directType()

Overrides:

directType in class GridDistributedLockRequest<K,V>

Returns:

Message type.

toString

public String toString()

Overrides:

toString in class GridDistributedLockRequest<K,V>