Package io.bdeploy.common

Class TaskSynchronizer

java.lang.Object

io.bdeploy.common.TaskSynchronizer

public class TaskSynchronizer
extends Object

Performs tasks. When *another* Thread wants to perform the *same* operation, it instead waits for the first Thread to complete the task.

Constructor Summary

Constructors

Constructor	Description
TaskSynchronizer()

Method Summary

Modifier and Type	Method	Description
boolean	isPerforming(Comparable<?> key)
<T> T	perform(Comparable<?> key, Callable<T> task)	Performs the operation or waits until an existing operation with the same key is done

Methods inherited from class java.lang.Object

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

Constructor Details

TaskSynchronizer

public TaskSynchronizer()

Method Details

isPerforming

public boolean isPerforming(Comparable<?> key)

Parameters:

key - the key to check

Returns:

whether the given task key is currently associated with a running task.

perform

public <T> T perform(Comparable<?> key,
 Callable<T> task)

Performs the operation or waits until an existing operation with the same key is done

Parameters:

key - the task key.

task - the task to be performed if not already running.