net.lecousin.framework.concurrent

Class StandaloneTaskPriorityManager

java.lang.Object

net.lecousin.framework.concurrent.StandaloneTaskPriorityManager

All Implemented Interfaces:

TaskPriorityManager

public class StandaloneTaskPriorityManager
extends Object
implements TaskPriorityManager

Simple implementation of TaskPriorityManager for a single application, only using the priority of tasks.

Constructor Summary

Constructors

Constructor and Description
StandaloneTaskPriorityManager() Constructor.

Method Summary

Modifier and Type	Method and Description
void	add(Task<?,?> task) Add a task to execute.
void	forceStop() always called inside a synchronized block on this instance.
int	getRemainingTasks(boolean includingBackground) Return the number of waiting tasks.
boolean	hasRemainingTasks(boolean includingBackground) Return true if at least one task is waiting to execute.
Task<?,?>	peekNext() Return a task if one is immediately available, or null.
Task<?,?>	peekNextOrWait() Return a task if one is immediately available, or pause the calling thread.
boolean	remove(Task<?,?> task) Remove a task.
List<Task<?,?>>	removeAllPendingTasks() always called inside a synchronized block on this instance.
void	setTaskManager(TaskManager taskManager) Set the associated TaskManager that will execute tasks.

Methods inherited from class java.lang.Object

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

Constructor Detail

StandaloneTaskPriorityManager

public StandaloneTaskPriorityManager()

Constructor.

Method Detail

setTaskManager

public final void setTaskManager(TaskManager taskManager)

Description copied from interface: TaskPriorityManager

Set the associated TaskManager that will execute tasks.

Specified by:

setTaskManager in interface TaskPriorityManager

add

public final void add(Task<?,?> task)

Description copied from interface: TaskPriorityManager

Add a task to execute.

Specified by:

add in interface TaskPriorityManager

remove

public final boolean remove(Task<?,?> task)

Description copied from interface: TaskPriorityManager

Remove a task.

Specified by:

remove in interface TaskPriorityManager

peekNextOrWait

public final Task<?,?> peekNextOrWait()

Description copied from interface: TaskPriorityManager

Return a task if one is immediately available, or pause the calling thread. If the thread is paused, null is returned when resumed in order to give a chance to check if there is something more urgent than peeking a new task. This method is always called inside a synchronized block on this instance.

Specified by:

peekNextOrWait in interface TaskPriorityManager

peekNext

public final Task<?,?> peekNext()

Description copied from interface: TaskPriorityManager

Return a task if one is immediately available, or null. This method is always called inside a synchronized block on this instance.

Specified by:

peekNext in interface TaskPriorityManager

removeAllPendingTasks

public final List<Task<?,?>> removeAllPendingTasks()

Description copied from interface: TaskPriorityManager

always called inside a synchronized block on this instance.

Specified by:

removeAllPendingTasks in interface TaskPriorityManager

forceStop

public final void forceStop()

Description copied from interface: TaskPriorityManager

always called inside a synchronized block on this instance.

Specified by:

forceStop in interface TaskPriorityManager

getRemainingTasks

public final int getRemainingTasks(boolean includingBackground)

Description copied from interface: TaskPriorityManager

Return the number of waiting tasks.

Specified by:

getRemainingTasks in interface TaskPriorityManager

hasRemainingTasks

public final boolean hasRemainingTasks(boolean includingBackground)

Description copied from interface: TaskPriorityManager

Return true if at least one task is waiting to execute.

Specified by:

hasRemainingTasks in interface TaskPriorityManager