DataMigrationStatus (XWiki Platform - Old Core 15.0 API)

```
public interface DataMigrationStatus
```
Common interface to report data migration status.

Since:

4.4.1

Version:

$Id: 22cc507f7b3d445ccedee9d2d5da43b3825be6b2 $

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`XWikiDBVersion`	`getDBVersion()`
`Exception`	`getLastMigrationException()`
`boolean`	`hasBeenSuccessfullyMigrated()`
`boolean`	`hasDataMigrationBeenAttempted()`

- Method Detail
  - getDBVersion
```
XWikiDBVersion getDBVersion()
                     throws DataMigrationException
```
    Returns:
    
    current DB version or null for a new database
    
    Throws:
    
    DataMigrationException - if any error
    
    xwiki.cfg configuration:
    
    xwiki.store.migration.version - override data version
  - hasDataMigrationBeenAttempted
```
boolean hasDataMigrationBeenAttempted()
```
    Returns:
    
    true if any migration has been attempted on current database
  - hasBeenSuccessfullyMigrated
```
boolean hasBeenSuccessfullyMigrated()
```
    Returns:
    
    true if all attempted migrations has been successfully applied on current database
  - getLastMigrationException
```
Exception getLastMigrationException()
```
    Returns:
    
    the exception returned on failure by the last attempted migration on this database