Package com.inductiveautomation.ignition.common.execution

Interface ExecutionManager

All Known Implementing Classes:

BasicExecutionEngine

public interface ExecutionManager

Central manager for all asynchronous and scheduled tasks

Method Summary

Modifier and Type	Method	Description
void	executeOnce(Runnable command)	Executes a runnable one time as soon as possible.
void	executeOnce(Runnable command, long delay)	Excutes a runnable one time after a delay, specified in milliseconds
ScheduledFuture<?>	executeOnce(Runnable command, long delay, TimeUnit unit)	Executes the runnable once, after the specified delay.
void	register(String owner, String name, SelfSchedulingRunnable command)	Registers a self scheduling command to be executed.
void	register(String owner, String name, Runnable command, int rateMS)	Registers a command to be executing repeatedly at the specified rate.
void	register(String owner, String name, Runnable command, int rate, TimeUnit unit)	Registers a command to be executing repeatedly at the specified rate.
void	registerAtFixedRate(String owner, String name, Runnable command, int rate, TimeUnit unit)	Registers a command to be executed with a fixed rate rather than a fixed delay.
void	registerAtFixedRateWithInitialDelay(String owner, String name, Runnable command, int rate, TimeUnit unit, int initialDelay)	Registers a command to be executed with a fixed rate after some initial delay.
void	registerWithInitialDelay(String owner, String name, Runnable command, int rate, int initialDelay)	Registers a command to be executing repeatedly at the specified rate with an initial delay.
void	registerWithInitialDelay(String owner, String name, Runnable command, int rate, TimeUnit unit, int initialDelay)	Registers a command to be executing repeatedly at the specified rate with an initial delay.
ScheduledFuture<?>	scheduleWithFixedDelay(Runnable command, long initialDelay, long delay, TimeUnit unit)	Schedules a runnable to execute with a fixed delay, and after an initial delay, much like registerWithInitialDelay(String, String, Runnable, int, TimeUnit, int).
void	shutdown()	Stops all execution gracefully.
void	unRegister(String owner, String name)	Unregisters a given command.
default void	unRegister(String owner, String name, boolean interrupt)	Unregisters a given command.
void	unRegisterAll(String owner)	Unregisters all commands for the given owner.

Method Details

register

void register(String owner,
 String name,
 Runnable command,
 int rateMS)

Registers a command to be executing repeatedly at the specified rate. If the name is already registered, the existing execution unit will be modified.

Parameters:

owner - name of the "owner"- just a string qualifier for the command name.

name - identifier used in conjunction with the owner to identify the command.

command - Runnable to be called at the specified rate.

rateMS - The amount of time to wait in between invocations of the command, in milliseconds.

register

void register(String owner,
 String name,
 Runnable command,
 int rate,
 TimeUnit unit)

Registers a command to be executing repeatedly at the specified rate. If the name is already registered, the existing execution unit will be modified.

Parameters:

owner - name of the "owner"- just a string qualifier for the command name.

name - identifier used in conjunction with the owner to identify the command.

command - Runnable to be called at the specified rate.

register

void register(String owner,
 String name,
 SelfSchedulingRunnable command)

Registers a self scheduling command to be executed. Self scheduling commands provide their own execution delay, which can change from exec to exec.

registerWithInitialDelay

void registerWithInitialDelay(String owner,
 String name,
 Runnable command,
 int rate,
 int initialDelay)

Registers a command to be executing repeatedly at the specified rate with an initial delay.

registerWithInitialDelay

void registerWithInitialDelay(String owner,
 String name,
 Runnable command,
 int rate,
 TimeUnit unit,
 int initialDelay)

Registers a command to be executing repeatedly at the specified rate with an initial delay.

registerAtFixedRate

void registerAtFixedRate(String owner,
 String name,
 Runnable command,
 int rate,
 TimeUnit unit)

Registers a command to be executed with a fixed rate rather than a fixed delay.

registerAtFixedRateWithInitialDelay

void registerAtFixedRateWithInitialDelay(String owner,
 String name,
 Runnable command,
 int rate,
 TimeUnit unit,
 int initialDelay)

Registers a command to be executed with a fixed rate after some initial delay.

executeOnce

void executeOnce(Runnable command)

Executes a runnable one time as soon as possible.

executeOnce

void executeOnce(Runnable command,
 long delay)

Excutes a runnable one time after a delay, specified in milliseconds

executeOnce

ScheduledFuture<?> executeOnce(Runnable command,
 long delay,
 TimeUnit unit)

Executes the runnable once, after the specified delay. Basically passes the runnable directly to the underlying ScheduledExecutorService. The returned ScheduledFuture can be used to track/cancel the execution.

scheduleWithFixedDelay

ScheduledFuture<?> scheduleWithFixedDelay(Runnable command,
 long initialDelay,
 long delay,
 TimeUnit unit)

Schedules a runnable to execute with a fixed delay, and after an initial delay, much like registerWithInitialDelay(String, String, Runnable, int, TimeUnit, int). The difference is that this method returns a ScheduledFuture that can be used to cancel the task.

unRegister

void unRegister(String owner,
 String name)

Unregisters a given command. If it is in the process of executing, it will be interrupted.

unRegister

default void unRegister(String owner,
 String name,
 boolean interrupt)

Unregisters a given command. Default implementation will interrupt if it is in the process of executing.

Parameters:

interrupt - Interrupts the execution if it is currently occurring. If false, waits for completion.

unRegisterAll

void unRegisterAll(String owner)

Unregisters all commands for the given owner.

shutdown

void shutdown()

Stops all execution gracefully.