com.hazelcast.map.impl.query

Class HDQueryOperation

java.lang.Object

com.hazelcast.spi.Operation

com.hazelcast.spi.impl.AbstractNamedOperation

com.hazelcast.map.impl.operation.MapOperation

com.hazelcast.map.impl.query.HDQueryOperation

All Implemented Interfaces:

com.hazelcast.nio.serialization.DataSerializable, com.hazelcast.nio.serialization.IdentifiedDataSerializable, com.hazelcast.spi.impl.AllowedDuringPassiveState, com.hazelcast.spi.NamedOperation, com.hazelcast.spi.ReadonlyOperation, com.hazelcast.spi.ServiceNamespaceAware

public class HDQueryOperation
extends com.hazelcast.map.impl.operation.MapOperation
implements com.hazelcast.spi.ReadonlyOperation

Query operation that runs a query for the HD memory. It is run on a generic thread, and then it spawns partition-query-operations for each local partition. This operation does not return any result until all the partition-query-operations have finished. Then it return a merged result. The main reason for this design is that we want the partition-query-operations to be local. In this way we skip the network overhead. So each member gets a single HDQueryOperation and then it queries all local partitions on partitions threads.

Field Summary

Fields inherited from class com.hazelcast.map.impl.operation.MapOperation

createRecordStoreOnDemand, mapContainer, mapEventPublisher, mapService, mapServiceContext, recordStore

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
HDQueryOperation()
HDQueryOperation(com.hazelcast.map.impl.query.Query query)

Method Summary

Modifier and Type	Method and Description
void	afterRun()
int	getFactoryId()
int	getId()
Object	getResponse()
void	onExecutionFailure(Throwable e)
com.hazelcast.spi.ExceptionAction	onInvocationException(Throwable throwable)
protected void	readInternal(com.hazelcast.nio.ObjectDataInput in)
boolean	returnsResponse()
void	run()
protected void	writeInternal(com.hazelcast.nio.ObjectDataOutput out)

Methods inherited from class com.hazelcast.map.impl.operation.MapOperation

beforeRun, evict, getServiceName, getServiceNamespace, getThreadId, innerBeforeRun, invalidateAllKeysInNearCaches, invalidateNearCache, invalidateNearCache, isPostProcessing, setMapContainer, setMapService, setThreadId

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

getName, toString

Methods inherited from class com.hazelcast.spi.Operation

call, executedLocally, getCallerAddress, getCallerUuid, getCallId, getCallTimeout, getConnection, getInvocationTime, getLogger, getNodeEngine, getOperationResponseHandler, getPartitionId, getReplicaIndex, getService, getWaitTimeout, isUrgent, logError, onSetCallId, readData, 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.nio.serialization.DataSerializable

readData, writeData

Constructor Detail

HDQueryOperation

public HDQueryOperation()

HDQueryOperation

public HDQueryOperation(com.hazelcast.map.impl.query.Query query)

Method Detail

run

public void run()

Overrides:

run in class com.hazelcast.spi.Operation

afterRun

public void afterRun()
              throws Exception

Overrides:

afterRun in class com.hazelcast.spi.Operation

Throws:

Exception

onInvocationException

public com.hazelcast.spi.ExceptionAction onInvocationException(Throwable throwable)

Overrides:

onInvocationException in class com.hazelcast.spi.Operation

getResponse

public Object getResponse()

Overrides:

getResponse in class com.hazelcast.spi.Operation

returnsResponse

public boolean returnsResponse()

Overrides:

returnsResponse in class com.hazelcast.spi.Operation

onExecutionFailure

public void onExecutionFailure(Throwable e)

Overrides:

onExecutionFailure in class com.hazelcast.spi.Operation

writeInternal

protected void writeInternal(com.hazelcast.nio.ObjectDataOutput out)
                      throws IOException

Overrides:

writeInternal in class com.hazelcast.spi.impl.AbstractNamedOperation

Throws:

IOException

readInternal

protected void readInternal(com.hazelcast.nio.ObjectDataInput in)
                     throws IOException

Overrides:

readInternal in class com.hazelcast.spi.impl.AbstractNamedOperation

Throws:

IOException

getId

public int getId()

Specified by:

getId in interface com.hazelcast.nio.serialization.IdentifiedDataSerializable

getFactoryId

public final int getFactoryId()

Specified by:

getFactoryId in interface com.hazelcast.nio.serialization.IdentifiedDataSerializable

Overrides:

getFactoryId in class com.hazelcast.map.impl.operation.MapOperation