Interface Group
- All Superinterfaces:
Principal
@Deprecated(since="9",
forRemoval=true)
public interface Group
extends Principal java.security.Policy and related classes since 1.2.This interface is used to represent a group of principals. (A principal represents an entity such as an individual user or a company).
Note that Group extends Principal. Thus, either a Principal or a Group can be passed as an argument to methods containing a Principal parameter. For example, you can add either a Principal or a Group to a Group object by calling the object's addMember method, passing it the Principal or Group.
- Since:
- 1.1
Methods
| Modifier and Type | Method | Description |
|---|---|---|
boolean | addMember(Principal user) | Deprecated, for removal: This API element is subject to removal in a future version. Adds the specified member to the group. |
boolean | isMember(Principal member) | Deprecated, for removal: This API element is subject to removal in a future version. Returns true if the passed principal is a member of the group. |
Enumeration<? extends Principal> | members() | Deprecated, for removal: This API element is subject to removal in a future version. Returns an enumeration of the members in the group. |
boolean | removeMember(Principal user) | Deprecated, for removal: This API element is subject to removal in a future version. Removes the specified member from the group. |
Methods declared in interface java.security.Principal
equals, getName, hashCode, implies, toString Methods
addMember
boolean addMember(Principal user)
Adds the specified member to the group.
- Parameters:
-
user- the principal to add to this group. - Returns:
- true if the member was successfully added, false if the principal was already a member.
removeMember
boolean removeMember(Principal user)
Removes the specified member from the group.
- Parameters:
-
user- the principal to remove from this group. - Returns:
- true if the principal was removed, or false if the principal was not a member.
isMember
boolean isMember(Principal member)
Returns true if the passed principal is a member of the group. This method does a recursive search, so if a principal belongs to a group which is a member of this group, true is returned.
- Parameters:
-
member- the principal whose membership is to be checked. - Returns:
- true if the principal is a member of this group, false otherwise.
members
Enumeration<? extends Principal> members()
Returns an enumeration of the members in the group. The returned objects can be instances of either Principal or Group (which is a subclass of Principal).
- Returns:
- an enumeration of the group members.
© 1993, 2020, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/security/acl/Group.html