Java Doc for Group.java in » 6.0-JDK-Core » security » java » security » acl » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Source Cross Reference Class Diagram Java Document (Java Doc)

Group
public interface Group extends Principal(Code)
	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. author: Satish Dharmaraj

Method Summary
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.
public Enumeration<? extends Principal>	members() Returns an enumeration of the members in the group.
public boolean	removeMember(Principal user) Removes the specified member from the group. Parameters: user - the principal to remove from this group.

Method Detail

addMember
public boolean addMember(Principal user)(Code)
	Adds the specified member to the group. Parameters: user - the principal to add to this group. true if the member was successfully added, false if the principal was already a member.

isMember
public boolean isMember(Principal member)(Code)
	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. true if the principal is a member of this group, false otherwise.

members
public Enumeration<? extends Principal> members()(Code)
	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). an enumeration of the group members.

removeMember
public boolean removeMember(Principal user)(Code)
	Removes the specified member from the group. Parameters: user - the principal to remove from this group. true if the principal was removed, or false if the principal was not a member.

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