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If caching is enabled and if any authorization data for an account is changed at runtime, such as adding or removing roles and/or permissions, the subclass implementation should clear the cached AuthorizationInfo for that account via the

getAuthorizationInfo

AuthorizationInfo getAuthorizationInfo(PrincipalCollection principals)

Returns an account's authorization-specific information for the specified principals, or null if no account could be found

This implementation obtains the actual AuthorizationInfo object

and then caches it for efficient reuse if caching is enabled

clearCachedAuthorizationInfo(PrincipalCollection principals)

Clears out the AuthorizationInfo cache entry for the specified account.

AuthorizationInfo getAuthorizationInfo(PrincipalCollection principals)

Returns an account's authorization-specific information for the specified principals, or null if no account could be found

automatically perform access control checks for the corresponding Subject

JdbcRealm

A Realm is a security component that can access application-specific security entities such as users, roles, and permissions to determine authentication and authorization operations

security-specific DAOs

If for some reason you don't want your Realm implementation to perform authentication duties, you should override the supports(org.apache.shiro.authc.AuthenticationToken) method to always return false

does not require you to implement or extend any User, Group or Role interfaces or classes

Shiro tries to maintain a non-intrusive development philosophy