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.
public abstract 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.
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).
Submit a bug or feature - Version 1.1.8 of Java Platform API Specification
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