Velai Threads for Java

Features

Velai Threads for Java makes use of annotations and reflection to enable you to easily support all of the features below, with minimal coding effort.

Cancellation Request the task to cancel. Check for cancellation requests.	Pausing Pause a task in the middle of its operation and then unpause when you wish.	Timing Know how long a task has taken to execute. Know how long ago a task completed.
Exceptions You don't have to write any special code to record exceptions thrown by threads.	State Monitor the state of any task. Attach listeners to state changes.	Extend Uses interfaces and annotations. Subclass your tasks without Velai getting in the way.
Patterns Out-of-box support for barrier, parallel and sequential patterns.

Example

Check out the simple example below. That is all you need to do to enable out-of-the-box support for:

• executing it synchronously (in the same thread) or asynchronously (in a thread of its own)
• task cancellation
• pausing and unpausing the task
• timing how long it takes to execute
• monitoring its state
• and so many other things with only a small amount of additional code

public class MyTask implements Callable<Void> {
  @Context
  private ExecutionContext execution;

  public Void call() throws Exception {
    while (!execution.isCancellationRequested(true)) {
      // do stuff
    }
    return null;
  }
}