com.hazelcast.cache.impl.operation
Class CacheContainsKeyOperation

java.lang.Object
  extended by com.hazelcast.spi.Operation
      extended by com.hazelcast.spi.AbstractOperation
          extended by com.hazelcast.spi.impl.AbstractNamedOperation
              extended by com.hazelcast.cache.impl.operation.CacheContainsKeyOperation
All Implemented Interfaces:
DataSerializable, IdentifiedDataSerializable, RemotePropagatable<Operation>, 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
protected  CacheRecord backupRecord
           
protected  ICacheRecordStore cache
           
protected  Data key
           
protected  Object response
           
 
Fields inherited from class com.hazelcast.spi.impl.AbstractNamedOperation
name
 
Constructor Summary
CacheContainsKeyOperation()
           
CacheContainsKeyOperation(String name, Data key)
           
 
Method Summary
 void beforeRun()
           
 int getAsyncBackupCount()
           
 int getFactoryId()
          Returns DataSerializableFactory factory id for this class.
 int getId()
          Returns type identifier for this class.
 Object getResponse()
           
 int getSyncBackupCount()
           
 ExceptionAction onException(Throwable throwable)
           
protected  void readInternal(ObjectDataInput in)
           
 boolean returnsResponse()
           
 void run()
           
protected  void writeInternal(ObjectDataOutput out)
           
 
Methods inherited from class com.hazelcast.spi.impl.AbstractNamedOperation
getName
 
Methods inherited from class com.hazelcast.spi.AbstractOperation
afterRun
 
Methods inherited from class com.hazelcast.spi.Operation
getCallerAddress, getCallerUuid, getCallId, getCallTimeout, getConnection, getExecutorName, getInvocationTime, getLogger, getNodeEngine, getPartitionId, getReplicaIndex, getResponseHandler, getService, getServiceName, getWaitTimeout, isUrgent, logError, 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.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
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

beforeRun

public final void beforeRun()
                     throws Exception
Overrides:
beforeRun in class AbstractOperation
Throws:
Exception

returnsResponse

public boolean returnsResponse()
Specified by:
returnsResponse in interface RemotePropagatable<Operation>
Overrides:
returnsResponse in class AbstractOperation

getResponse

public final Object getResponse()
Overrides:
getResponse in class AbstractOperation

onException

public ExceptionAction onException(Throwable throwable)
Overrides:
onException in class Operation

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()


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