CancellationTokenSource

Class CancellationTokenSource

com.grapecity.documents.excel.CancellationTokenSource

public class CancellationTokenSource extends Object implements AutoCloseable

A CancellationTokenSource allows you to issue cancellation requests to one or more methods.To use a token source:

Create a token source.
Attach the token to one or more operations by passing the return value of getToken() as parameter.
Later, you can cancel the associated operations by calling cancel() on this token source.

This class is thread safe.

API Note:: You must call the close() method when you don't need to use it anymore.

Constructor Details
- CancellationTokenSource
  
  public CancellationTokenSource()
Method Details
- cancel
  
  public void cancel()
  
  Initiates cancel request. All operations that have been associated with this token will be cancelled.
  It is assumed that the consumers of getToken() will do 'best-effort' attempt to perform cancellation.This method returns immediately and if the cancellation is successful the cancelled operation will throw CancellationException.
- cancelAfter
  
  public void cancelAfter(Duration delay)
  
  Schedules a cancel operation on this CancellationTokenSource after the specified time span.
  
  Parameters:
  
  delay - The time span to wait before canceling this CancellationTokenSource. This value can't be null.
- getToken
  
  public CancellationToken getToken()
  
  Returns a token associated with this CancellationTokenSource.
  
  Returns:
  
  The cancellation token. Always returns the same instance.
- close
  
  public void close() throws Exception
  
  Closes the resource and performs cleanup operations.
  
  Specified by:
  
  close in interface AutoCloseable
  
  Throws:
  
  Exception