org.wso2.siddhi.core.partition

Class PartitionRuntime

java.lang.Object

org.wso2.siddhi.core.partition.PartitionRuntime

All Implemented Interfaces:

Snapshotable

public class PartitionRuntime
extends Object
implements Snapshotable

Runtime class to handle partitioning. It will hold all information regarding current partiotns and wil create partition dynamically during runtime.

Constructor Summary

Constructors

Constructor and Description
PartitionRuntime(ConcurrentMap<String,org.wso2.siddhi.query.api.definition.AbstractDefinition> streamDefinitionMap, ConcurrentMap<String,StreamJunction> streamJunctionMap, org.wso2.siddhi.query.api.execution.partition.Partition partition, SiddhiAppContext siddhiAppContext)

Method Summary

Modifier and Type	Method and Description
void	addPartitionReceiver(QueryRuntime queryRuntime, List<VariableExpressionExecutor> executors, MetaStateEvent metaEvent)
QueryRuntime	addQuery(QueryRuntime metaQueryRuntime)
void	addStreamJunction(String key, StreamJunction streamJunction)
void	cloneIfNotExist(String key) clone all the queries of the partition for a given partition key if they are not available
Map<String,Object>	currentState() Used to collect the serializable state of the processing element, that need to be persisted for the reconstructing the element to the same state on a different point of time
String	getElementId()
ConcurrentMap<String,org.wso2.siddhi.query.api.definition.AbstractDefinition>	getLocalStreamDefinitionMap()
ConcurrentMap<String,StreamJunction>	getLocalStreamJunctionMap()
ConcurrentMap<String,QueryRuntime>	getMetaQueryRuntimeMap()
String	getPartitionId()
void	init()
void	restoreState(Map<String,Object> state) Used to restore serialized state of the processing element, for reconstructing the element to the same state as if was on a previous point of time.
void	setMemoryUsageTracker(MemoryUsageTracker memoryUsageTracker)

Methods inherited from class java.lang.Object

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

Constructor Detail

PartitionRuntime

public PartitionRuntime(ConcurrentMap<String,org.wso2.siddhi.query.api.definition.AbstractDefinition> streamDefinitionMap,
                        ConcurrentMap<String,StreamJunction> streamJunctionMap,
                        org.wso2.siddhi.query.api.execution.partition.Partition partition,
                        SiddhiAppContext siddhiAppContext)

Method Detail

addQuery

public QueryRuntime addQuery(QueryRuntime metaQueryRuntime)

addPartitionReceiver

public void addPartitionReceiver(QueryRuntime queryRuntime,
                                 List<VariableExpressionExecutor> executors,
                                 MetaStateEvent metaEvent)

cloneIfNotExist

public void cloneIfNotExist(String key)

clone all the queries of the partition for a given partition key if they are not available

Parameters:

key - partition key

addStreamJunction

public void addStreamJunction(String key,
                              StreamJunction streamJunction)

init

public void init()

getPartitionId

public String getPartitionId()

getMetaQueryRuntimeMap

public ConcurrentMap<String,QueryRuntime> getMetaQueryRuntimeMap()

getLocalStreamDefinitionMap

public ConcurrentMap<String,org.wso2.siddhi.query.api.definition.AbstractDefinition> getLocalStreamDefinitionMap()

getLocalStreamJunctionMap

public ConcurrentMap<String,StreamJunction> getLocalStreamJunctionMap()

currentState

public Map<String,Object> currentState()

Description copied from interface: Snapshotable

Used to collect the serializable state of the processing element, that need to be persisted for the reconstructing the element to the same state on a different point of time

Specified by:

currentState in interface Snapshotable

Returns:

stateful objects of the processing element as an array

restoreState

public void restoreState(Map<String,Object> state)

Description copied from interface: Snapshotable

Used to restore serialized state of the processing element, for reconstructing the element to the same state as if was on a previous point of time.

Specified by:

restoreState in interface Snapshotable

Parameters:

state - the stateful objects of the element as an array on the same order provided by currentState().

getElementId

public String getElementId()

Specified by:

getElementId in interface Snapshotable

setMemoryUsageTracker

public void setMemoryUsageTracker(MemoryUsageTracker memoryUsageTracker)