org.keycloak.util

public Interface EnumWithStableIndex

Known Direct Implementers: org.keycloak.representations.idm.authorization.PolicyEnforcementMode, org.keycloak.representations.idm.authorization.DecisionStrategy, org.keycloak.representations.idm.authorization.Logic
Imports: java.util.Map, java.util.function.Function, java.util.stream.Collectors, .Stream

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

Modifier and Type	Method and Description
public static <E extends EnumWithStableIndex> Map<Integer, E>	getReverseIndex(E[] values)
public int	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). getStableIndex()

Method Detail

getReverseIndex	back to summary
public static <E extends EnumWithStableIndex> Map<Integer, E> getReverseIndex(E[] values)

getStableIndex	back to summary
public int getStableIndex() Returns:int 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).