Package com.oracle.coherence.concurrent.executor.tasks.internal

Class ScheduledCallableTask<T>

java.lang.Object

com.oracle.coherence.concurrent.executor.tasks.internal.CallableTask<T>

com.oracle.coherence.concurrent.executor.tasks.internal.ScheduledCallableTask<T>

Type Parameters:

T - the type of result produced by the Task

All Implemented Interfaces:

Task<T>, ExternalizableLite, PortableObject, Serializable, Callable<T>

public class ScheduledCallableTask<T>
extends CallableTask<T>
implements Callable<T>

A Task that executes a Callable at scheduled time.

Since:

21.12

Author:

lh

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface com.oracle.coherence.concurrent.executor.Task

Task.Collectable<T,R>, Task.Collector<T,A,R>, Task.Completable<T,R>, Task.CompletionRunnable<T>, Task.Context<T>, Task.Coordinator<T>, Task.Option, Task.Orchestration<T>, Task.Properties, Task.SubscribedOrchestration<T>, Task.Subscriber<T>, Task.Subscription<T>, Task.Yield

Field Summary

Fields

Modifier and Type	Field	Description
protected long	m_ldtSubmitNanos	The time in nanoseconds when the task is submitted.
protected Duration	m_ltdInitialDelay	The initial delay to execute the task.

Fields inherited from class com.oracle.coherence.concurrent.executor.tasks.internal.CallableTask

m_callable

Constructor Summary

Constructors

Constructor	Description
ScheduledCallableTask()	Constructs a ScheduledCallableTask (required for serialization).
ScheduledCallableTask(Callable callable, Duration initialDelay)	Constructs a ScheduledCallableTask.

Method Summary

Modifier and Type	Method	Description
T	call()
T	execute(Task.Context<T> context)	Executes the Task.
Duration	getInitialDelay()	Returns the initial delay.
void	readExternal(PofReader in)
void	readExternal(DataInput in)
void	writeExternal(PofWriter out)
void	writeExternal(DataOutput out)

Methods inherited from class com.oracle.coherence.concurrent.executor.tasks.internal.CallableTask

getCallable

Methods inherited from class java.lang.Object

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

Field Detail

m_ldtSubmitNanos

protected long m_ldtSubmitNanos

The time in nanoseconds when the task is submitted.

m_ltdInitialDelay

protected Duration m_ltdInitialDelay

The initial delay to execute the task.

Constructor Detail

ScheduledCallableTask

public ScheduledCallableTask()

Constructs a ScheduledCallableTask (required for serialization).

ScheduledCallableTask

public ScheduledCallableTask(Callable callable,
                             Duration initialDelay)

Constructs a ScheduledCallableTask.

Parameters:

callable - the callable

initialDelay - the initial delay to execute the task

Method Detail

getInitialDelay

public Duration getInitialDelay()

Returns the initial delay.

Returns:

the initial delay

execute

public T execute(Task.Context<T> context)
          throws Exception

Description copied from interface: Task

Executes the Task.

Specified by:

execute in interface Task<T>

Overrides:

execute in class CallableTask<T>

Parameters:

context - the Task.Context

Returns:

the result of executing the Task

Throws:

Task.Yield - which indicates the Task execution should yield execution until some later point in time

Exception

call

public T call()

Specified by:

call in interface Callable<T>

readExternal

public void readExternal(DataInput in)
                  throws IOException

Specified by:

readExternal in interface ExternalizableLite

Overrides:

readExternal in class CallableTask<T>

Throws:

IOException

writeExternal

public void writeExternal(DataOutput out)
                   throws IOException

Specified by:

writeExternal in interface ExternalizableLite

Overrides:

writeExternal in class CallableTask<T>

Throws:

IOException

readExternal

public void readExternal(PofReader in)
                  throws IOException

Specified by:

readExternal in interface PortableObject

Overrides:

readExternal in class CallableTask<T>

Throws:

IOException

writeExternal

public void writeExternal(PofWriter out)
                   throws IOException

Specified by:

writeExternal in interface PortableObject

Overrides:

writeExternal in class CallableTask<T>

Throws:

IOException