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Home » openjdk-7 » java » security » acl » [javadoc | source]
java.security.acl
public interface: Group [javadoc | source]

All Implemented Interfaces:
    Principal

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.

Method from java.security.acl.Group Summary:
addMember,   isMember,   members,   removeMember
Method from java.security.acl.Group Detail:
 public boolean addMember(Principal user)
    Adds the specified member to the group.
 public 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.
 public Enumeration 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).
 public boolean removeMember(Principal user)
    Removes the specified member from the group.