com.hazelcast.cache.impl.operation

Class CacheContainsKeyOperation

java.lang.Object

com.hazelcast.spi.Operation

com.hazelcast.spi.AbstractOperation

com.hazelcast.spi.impl.AbstractNamedOperation

com.hazelcast.cache.impl.operation.CacheContainsKeyOperation

All Implemented Interfaces:

DataSerializable, IdentifiedDataSerializable, AllowedDuringPassiveState, NamedOperation, PartitionAwareOperation, ReadonlyOperation

public class CacheContainsKeyOperation
extends AbstractNamedOperation
implements ReadonlyOperation

Cache contains key operation, determines if the cache contains an entry for the specified key.

More formally, returns true if and only if the cache contains a mapping for a key k such that key.equals(k). (There can be at most one such mapping.)

Field Summary

Fields

Modifier and Type	Field and Description
protected CacheRecord	backupRecord
protected ICacheRecordStore	cache
protected ICacheService	cacheService
protected Data	key
protected Object	response
protected CacheWanEventPublisher	wanEventPublisher

Fields inherited from class com.hazelcast.spi.impl.AbstractNamedOperation

name

Fields inherited from class com.hazelcast.spi.Operation

GENERIC_PARTITION_ID

Constructor Summary

Constructors

Constructor and Description
CacheContainsKeyOperation()
CacheContainsKeyOperation(String name, Data key)

Method Summary

Methods

Modifier and Type	Method and Description
void	beforeRun()
int	getAsyncBackupCount()
int	getFactoryId() Returns DataSerializableFactory factory id for this class.
int	getId() Returns type identifier for this class.
Object	getResponse()
String	getServiceName()
int	getSyncBackupCount()
void	logError(Throwable e) Logs Exception/Error thrown during operation execution.
ExceptionAction	onInvocationException(Throwable throwable) Called when an Exception/Error is thrown during an invocation.
protected void	readInternal(ObjectDataInput in)
void	run()
protected void	writeInternal(ObjectDataOutput out)

Methods inherited from class com.hazelcast.spi.impl.AbstractNamedOperation

getName, toString

Methods inherited from class com.hazelcast.spi.Operation

afterRun, getCallerAddress, getCallerUuid, getCallId, getCallTimeout, getConnection, getInvocationTime, getLogger, getNodeEngine, getOperationResponseHandler, getPartitionId, getReplicaIndex, getService, getWaitTimeout, isUrgent, onExecutionFailure, onSetCallId, readData, returnsResponse, sendResponse, setCallerUuid, setNodeEngine, setOperationResponseHandler, setPartitionId, setReplicaIndex, 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.PartitionAwareOperation

getPartitionId

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

readData, writeData

Field Detail

key

protected Data key

response

protected Object response

cache

protected transient ICacheRecordStore cache

backupRecord

protected transient CacheRecord backupRecord

cacheService

protected transient ICacheService cacheService

wanEventPublisher

protected transient CacheWanEventPublisher wanEventPublisher

Constructor Detail

CacheContainsKeyOperation

public CacheContainsKeyOperation()

CacheContainsKeyOperation

public CacheContainsKeyOperation(String name,
                         Data key)

Method Detail

run

public void run()
         throws Exception

Specified by:

run in class Operation

Throws:

Exception

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

getServiceName

public String getServiceName()

Overrides:

getServiceName in class Operation

beforeRun

public final void beforeRun()
                     throws Exception

Overrides:

beforeRun in class Operation

Throws:

Exception

getResponse

public final Object getResponse()

Overrides:

getResponse in class Operation

onInvocationException

public ExceptionAction onInvocationException(Throwable throwable)

Description copied from class: Operation

Called when an Exception/Error is thrown during an invocation. Invocation process will continue, retry or fail according to returned ExceptionAction result.

This method is called on caller side of the invocation.

Overrides:

onInvocationException in class Operation

Parameters:

throwable - Exception/Error thrown during invocation

Returns:

ExceptionAction

logError

public void logError(Throwable e)

Description copied from class: Operation

Logs Exception/Error thrown during operation execution. Operation implementations can override this behaviour due to their needs.

This method is called on node & thread that's executing the operation.

Overrides:

logError in class Operation

Parameters:

e - Exception/Error thrown during operation execution

writeInternal

protected void writeInternal(ObjectDataOutput out)
                      throws IOException

Overrides:

writeInternal in class AbstractNamedOperation

Throws:

IOException

readInternal

protected void readInternal(ObjectDataInput in)
                     throws IOException

Overrides:

readInternal in class AbstractNamedOperation

Throws:

IOException

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

getSyncBackupCount

public final int getSyncBackupCount()

getAsyncBackupCount

public final int getAsyncBackupCount()