VersionService (Fedora Commons 6.0.0 API)

All Known Implementing Classes:

VersionServiceImpl
```
public interface VersionService
```
Service for creating versions of resources

Since:

Feb 19, 2014

Author:

bbpennel, whikloj

Field Summary

Fields
Modifier and Type	Field	Description
`static DateTimeFormatter`	`MEMENTO_LABEL_FORMATTER`	To format a datetime for use as a Memento path.
`static DateTimeFormatter`	`MEMENTO_RFC_1123_FORMATTER`	To format a datetime as RFC-1123 with correct timezone.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`createVersion(Transaction transaction, FedoraId fedoraId, String userPrincipal)`	Explicitly creates a version for the resource at the path provided.

- Field Detail
  - MEMENTO_LABEL_FORMATTER
```
static final DateTimeFormatter MEMENTO_LABEL_FORMATTER
```
    To format a datetime for use as a Memento path.
  - MEMENTO_RFC_1123_FORMATTER
```
static final DateTimeFormatter MEMENTO_RFC_1123_FORMATTER
```
    To format a datetime as RFC-1123 with correct timezone.
- Method Detail
  - createVersion
```
void createVersion(Transaction transaction,
                   FedoraId fedoraId,
                   String userPrincipal)
```
    Explicitly creates a version for the resource at the path provided.
    
    Parameters:
    
    transaction - the transaction in which the resource resides
    
    fedoraId - the internal resource id
    
    userPrincipal - the user principal