Primitive-Collections/src/builder/resources/speiger/assets/collections/templates/functions/Task.template

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package speiger.src.collections.PACKAGE.functions;
import java.util.concurrent.RunnableFuture;
#if !TYPE_OBJECT
import java.util.concurrent.CancellationException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
#endif
/**
*
* A Type Specific Task interface that allows you to keep track of the task that is currently running.<br>
* It extends Runnable future and supports said functions but also provides quality of life functions like:<br>
*
* - isSuccesfull: which allows to detect if the task was completed properly and not interrupted or crashed.
* - pause/resume: which allows to pause/resume the task at any moment, making it easier to create thread-safe actions.
* @Type(T)
*/
public interface TASK KEY_GENERIC_TYPE extends RunnableFuture<CLASS_TYPE> {
/**
* Helper function to detect if the task is currently paused.
* @return true if paused
*/
public boolean isPaused();
/**
* Pauses the task, which lets the thread finish without completing the task.
* Tasks are written in the way where they can pause without any issues.
* This won't be instant, as this function is applied asynchronous and doesn't check if the thread paused.
* So make sure it had the time to pause.
*/
public void pause();
/**
* Pauses the task, which lets the thread finish without completing the task.
* Tasks are written in the way where they can pause without any issues.
* This won't be instant, as this function is applied asynchronous.
* It will await the pausing of the task.
*/
public void awaitPausing();
/**
* Continues the task if it wasn't already completed.
* This is done by resubmitting the task to the executor provided.
*/
public void resume();
/**
* Quality of life function that allows to detect if no cancellation/exception was applied to this task and it completed on its own.
* @return true if it was properly completed
*/
public boolean isSuccessful();
#if !TYPE_OBJECT
/**
* A Type Specific get method that allows to reduce (un)boxing of primtives.
*
* Waits if necessary for the computation to complete, and then
* retrieves its result.
*
* @return the computed result as primitive
* @throws CancellationException if the computation was cancelled
* @throws ExecutionException if the computation threw an exception
* @throws InterruptedException if the current thread was interrupted
* while waiting
*/
public KEY_TYPE GET_KEY() throws InterruptedException, ExecutionException;
/**
* Waits if necessary for at most the given time for the computation
* to complete, and then retrieves its result, if available.
*
* @param timeout the maximum time to wait
* @param unit the time unit of the timeout argument
* @return the computed result as primitive
* @throws CancellationException if the computation was cancelled
* @throws ExecutionException if the computation threw an exception
* @throws InterruptedException if the current thread was interrupted while waiting
* @throws TimeoutException if the wait timed out
*/
public KEY_TYPE GET_KEY(long timeout, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException;
@Override
@Deprecated
public default CLASS_TYPE get() throws InterruptedException, ExecutionException { return KEY_TO_OBJ(GET_KEY()); }
@Override
@Deprecated
public default CLASS_TYPE get(long timeout, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException { return KEY_TO_OBJ(GET_KEY(timeout, unit)); }
#endif
}