EnumWithStableIndex (Keycloak Docs Distribution 21.1.1 API)

All Known Implementing Classes:

AuthenticationExecutionModel.Requirement, CommonClientSessionModel.ExecutionStatus, DecisionStrategy, EventType, Logic, OperationType, PolicyEnforcementMode, UserSessionModel.State
```
public interface EnumWithStableIndex
```
Classes implementing this interface guarantee that for each instance of this class, there exists an mutually unique integer which is stable in time, and identifies always the same instance of this class. The index might be used for persistence, hence the index of a particular item cannot be changed. This is mostly usable for @{code enum}s.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`static <E extends EnumWithStableIndex> Map<Integer,E>`	`getReverseIndex(E[] values)`
`int`	`getStableIndex()`

- Method Detail
  - getStableIndex
```
int getStableIndex()
```
    Returns:
    
    Unique numeric index which is stable in time and identifies an instance. Reusing the same index for two distinct entries of the same class is forbidden even if they cannot exist at the same time (e.g. one is deleted before other is introduced).
  - getReverseIndex
```
static <E extends EnumWithStableIndex> Map<Integer,E> getReverseIndex(E[] values)
```