com.hazelcast.concurrent.lock.operations

Class LockOperation

java.lang.Object

com.hazelcast.spi.Operation

com.hazelcast.spi.AbstractOperation

com.hazelcast.concurrent.lock.operations.LockOperation

All Implemented Interfaces:

DataSerializable, IdentifiedDataSerializable, BackupAwareOperation, RemotePropagatable<Operation>, PartitionAwareOperation, WaitSupport

public class LockOperation
extends AbstractOperation
implements WaitSupport, BackupAwareOperation

Field Summary

Fields

Modifier and Type	Field and Description
static int	ANY_THREAD
static long	DEFAULT_LOCK_TTL
protected Data	key
protected ObjectNamespace	namespace
protected Object	response
protected long	threadId
protected long	ttl

Constructor Summary

Constructors

Constructor and Description
LockOperation()
LockOperation(ObjectNamespace namespace, Data key, long threadId, long timeout)
LockOperation(ObjectNamespace namespace, Data key, long threadId, long ttl, long timeout)

Method Summary

Methods

Modifier and Type	Method and Description
int	getAsyncBackupCount()
Operation	getBackupOperation() Creates the BackupOperation responsible for making the backup.
int	getFactoryId() Returns DataSerializableFactory factory id for this class.
int	getId() Returns type identifier for this class.
Data	getKey()
protected LockStoreImpl	getLockStore()
Object	getResponse()
String	getServiceName()
int	getSyncBackupCount()
WaitNotifyKey	getWaitKey()
void	onWaitExpire()
protected void	readInternal(ObjectDataInput in)
void	run()
void	setAsyncBackup(boolean asyncBackup)
boolean	shouldBackup() Checks if a backup needs to be made.
boolean	shouldWait()
protected void	writeInternal(ObjectDataOutput out)

Methods inherited from class com.hazelcast.spi.AbstractOperation

afterRun, beforeRun, returnsResponse

Methods inherited from class com.hazelcast.spi.Operation

getCallerAddress, getCallerUuid, getCallId, getCallTimeout, getConnection, getExecutorName, getInvocationTime, getLogger, getNodeEngine, getPartitionId, getReplicaIndex, getResponseHandler, getService, getWaitTimeout, isUrgent, logError, onException, readData, setCallerUuid, setExecutorName, setNodeEngine, setPartitionId, setReplicaIndex, setResponseHandler, setService, setServiceName, setValidateTarget, setWaitTimeout, toString, validatesTarget, writeData

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.hazelcast.spi.WaitSupport

getWaitTimeout

Methods inherited from interface com.hazelcast.spi.BackupAwareOperation

getAsyncBackupCount, getSyncBackupCount

Methods inherited from interface com.hazelcast.spi.PartitionAwareOperation

getPartitionId

Methods inherited from interface com.hazelcast.nio.serialization.DataSerializable

readData, writeData

Field Detail

DEFAULT_LOCK_TTL

public static final long DEFAULT_LOCK_TTL

See Also:

Constant Field Values

ANY_THREAD

public static final int ANY_THREAD

See Also:

Constant Field Values

namespace

protected ObjectNamespace namespace

key

protected Data key

threadId

protected long threadId

ttl

protected long ttl

response

protected transient Object response

Constructor Detail

LockOperation

public LockOperation()

LockOperation

public LockOperation(ObjectNamespace namespace,
             Data key,
             long threadId,
             long timeout)

LockOperation

public LockOperation(ObjectNamespace namespace,
             Data key,
             long threadId,
             long ttl,
             long timeout)

Method Detail

run

public void run()
         throws Exception

Specified by:

run in class Operation

Throws:

Exception

getBackupOperation

public Operation getBackupOperation()

Description copied from interface: BackupAwareOperation

Creates the BackupOperation responsible for making the backup.

Specified by:

getBackupOperation in interface BackupAwareOperation

Returns:

the created BackupOperation.

shouldBackup

public boolean shouldBackup()

Description copied from interface: BackupAwareOperation

Checks if a backup needs to be made.

If a call has not made any change, e.g. an AtomicLong increment with 0, no backup needs to be made.

Specified by:

shouldBackup in interface BackupAwareOperation

Returns:

true if a backup needs to be made, false otherwise.

getWaitKey

public final WaitNotifyKey getWaitKey()

Specified by:

getWaitKey in interface WaitSupport

shouldWait

public final boolean shouldWait()

Specified by:

shouldWait in interface WaitSupport

getId

public int getId()

Description copied from interface: IdentifiedDataSerializable

Returns type identifier for this class. Id should be unique per DataSerializableFactory.

Specified by:

getId in interface IdentifiedDataSerializable

Returns:

type id

onWaitExpire

public final void onWaitExpire()

Specified by:

onWaitExpire in interface WaitSupport

getResponse

public final Object getResponse()

Overrides:

getResponse in class AbstractOperation

getLockStore

protected final LockStoreImpl getLockStore()

getSyncBackupCount

public final int getSyncBackupCount()

getAsyncBackupCount

public final int getAsyncBackupCount()

setAsyncBackup

public final void setAsyncBackup(boolean asyncBackup)

getServiceName

public final String getServiceName()

Overrides:

getServiceName in class Operation

getKey

public final Data getKey()

getFactoryId

public int getFactoryId()

Description copied from interface: IdentifiedDataSerializable

Returns DataSerializableFactory factory id for this class.

Specified by:

getFactoryId in interface IdentifiedDataSerializable

Returns:

factory id

writeInternal

protected void writeInternal(ObjectDataOutput out)
                      throws IOException

Overrides:

writeInternal in class AbstractOperation

Throws:

IOException

readInternal

protected void readInternal(ObjectDataInput in)
                     throws IOException

Overrides:

readInternal in class AbstractOperation

Throws:

IOException