OAuth2AccessTokenProvider (AristaFlow Business Process Platform API)

All Known Implementing Classes:

ClientCredentialsAccessTokenProvider
```
public interface OAuth2AccessTokenProvider
```
A plug-in interface for MailEventSource as a customisable way to provide an OAuth2 access token that can be used to access a mailbox via the "XOAUTH2" authentication mechanism.

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  String getAccessToken()
  Gets an OAuth2 access token for accessing the mailbox.

- Method Detail
  - getAccessToken
```
String getAccessToken()
               throws javax.mail.MessagingException
```
    Gets an OAuth2 access token for accessing the mailbox.
    
    Returns:
    
    An OAuth2 access token for accessing the mailbox
    
    Throws:
    
    javax.mail.MessagingException - If there are problems retrieving the access token, a MessagingException will be thrown.