IDMapper

```
public interface IDMapper
```
This interface defines the APIs for mapping the authentication user ID to ITIM account user ID. Default IDMapper provides one-to-one mapping between the authentication user and the ITIM account user. The default IDMapper assumes that both users have the same user ID. If you want to support mapping of different user IDs between the authentication user and the ITIM account user, you must provide a class that implements an IDMapper that completes the mapping, You must also register the implementation class. To register the IDMapper implementation class, update the following property in IM_HOME/data/enRoleAuthentication.properties file and restart WebSphere Application Server. The IM_HOME is the directory where Identity Governance is installed. enrole.authentication.idmapper=com.ibm.itim.authentication.mapping.DefaultIDMapper

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`ItimID`	`mapSubjectToItimID(javax.security.auth.Subject subject)` Maps the authenticated user subject to ITIM account user ID and returns the ITIM account user ID.
`ItimID`	`mapUserIDToItimID(java.lang.String userID)` Maps the authentication user ID to the ITIM account user ID and returns the ITIM account user ID.