IUserRefExtension (formcycle: bom 8.4.0 API)

All Superinterfaces:

Serializable

All Known Implementing Classes:

UserRefExtension
```
public interface IUserRefExtension
extends Serializable
```
Interface for further user reference data which is only used for filtering.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Set<String>`	`getEMails()`
`Set<IExternalUserRef>`	`getExternalReferenceIds()`
`Set<String>`	`getUniversalReferenceIds()`

- Method Detail
  - getExternalReferenceIds
```
Set<IExternalUserRef> getExternalReferenceIds()
```
    Returns:
    
    the user reference from external sources
  - getUniversalReferenceIds
```
Set<String> getUniversalReferenceIds()
```
    Returns:
    
    further user reference from internal sources
  - getEMails
```
Set<String> getEMails()
```
    Returns:
    
    all user mails