com.hazelcast.scheduledexecutor.impl

Class ScheduledRunnableAdapter<V>

java.lang.Object

com.hazelcast.scheduledexecutor.impl.ScheduledRunnableAdapter<V>

All Implemented Interfaces:

HazelcastInstanceAware, PartitionAware, DataSerializable, IdentifiedDataSerializable, NamedTask, StatefulTask, Callable<V>

public class ScheduledRunnableAdapter<V>
extends Object
implements IdentifiedDataSerializable, Callable<V>, HazelcastInstanceAware, PartitionAware, NamedTask, StatefulTask

Constructor Summary

Constructors

Constructor and Description
ScheduledRunnableAdapter()
ScheduledRunnableAdapter(Runnable task)

Method Summary

Modifier and Type	Method and Description
V	call()
int	getFactoryId() Returns DataSerializableFactory factory id for this class.
int	getId() Returns type identifier for this class.
String	getName() Returns the name of the task.
Object	getPartitionKey() The key that will be used by Hazelcast to specify the partition.
Runnable	getRunnable()
void	load(Map snapshot) Task callback to initialize its inner state, after a replica promotion, from the given map.
void	readData(ObjectDataInput in) Reads fields from the input stream
void	save(Map snapshot) Task callback to capture its state on the provided map.
void	setHazelcastInstance(HazelcastInstance hazelcastInstance) Gets the HazelcastInstance reference when submitting a Runnable/Callable using Hazelcast ExecutorService.
void	setRunnable(Runnable runnable)
String	toString()
void	writeData(ObjectDataOutput out) Writes object fields to output stream

Methods inherited from class java.lang.Object

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

Constructor Detail

ScheduledRunnableAdapter

public ScheduledRunnableAdapter()

ScheduledRunnableAdapter

public ScheduledRunnableAdapter(Runnable task)

Method Detail

getRunnable

public Runnable getRunnable()

setRunnable

public void setRunnable(Runnable runnable)

call

public V call()
       throws Exception

Specified by:

call in interface Callable<V>

Throws:

Exception

getPartitionKey

public Object getPartitionKey()

Description copied from interface: PartitionAware

The key that will be used by Hazelcast to specify the partition. You should give the same key for objects that you want to be in the same partition.

Specified by:

getPartitionKey in interface PartitionAware

Returns:

the key that specifies the partition

setHazelcastInstance

public void setHazelcastInstance(HazelcastInstance hazelcastInstance)

Description copied from interface: HazelcastInstanceAware

Gets the HazelcastInstance reference when submitting a Runnable/Callable using Hazelcast ExecutorService.

Specified by:

setHazelcastInstance in interface HazelcastInstanceAware

Parameters:

hazelcastInstance - the HazelcastInstance reference

getName

public String getName()

Description copied from interface: NamedTask

Returns the name of the task. The name will be used to uniquely identify the task in the scheduler service, if a duplicate is detected a DuplicateTaskException will be thrown and the task will be rejected.

Specified by:

getName in interface NamedTask

Returns:

String The name of the task

save

public void save(Map snapshot)

Description copied from interface: StatefulTask

Task callback to capture its state on the provided map. This is invoked after each invocation of Runnable.run() or Callable.call() to capture a snapshot of the state and publish to replicas. If two or more replicas of the same task run at the same time and publish their states, then only the one running on the owner member will be allowed to update the replicas. Note: The state of the cluster is not known or guaranteed during task's execution, thus, publication of the task's state to replicas is done on best-effort basis. Called immediately after run() or call() of the Runnable or Callable respectively.

Specified by:

save in interface StatefulTask

Parameters:

snapshot - The Map responsible for holding a snapshot of the current state.

load

public void load(Map snapshot)

Description copied from interface: StatefulTask

Task callback to initialize its inner state, after a replica promotion, from the given map. This is invoked once per task's lifecycle in a single member, before invocation of Runnable.run() or Callable.call() to setup task's state as published from the previous owner of the task in the cluster. load will not be called if the snapshot is empty.

Specified by:

load in interface StatefulTask

Parameters:

snapshot - The Map responsible for providing a snapshot of the task's state.

writeData

public void writeData(ObjectDataOutput out)
               throws IOException

Description copied from interface: DataSerializable

Writes object fields to output stream

Specified by:

writeData in interface DataSerializable

Parameters:

out - output

Throws:

IOException

readData

public void readData(ObjectDataInput in)
              throws IOException

Description copied from interface: DataSerializable

Reads fields from the input stream

Specified by:

readData in interface DataSerializable

Parameters:

in - input

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

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

toString

public String toString()

Overrides:

toString in class Object