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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/java/security/acl/Group.java | |
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Diffstat (limited to 'libjava/classpath/java/security/acl/Group.java')
-rw-r--r-- | libjava/classpath/java/security/acl/Group.java | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/libjava/classpath/java/security/acl/Group.java b/libjava/classpath/java/security/acl/Group.java new file mode 100644 index 000000000..a0df75526 --- /dev/null +++ b/libjava/classpath/java/security/acl/Group.java @@ -0,0 +1,90 @@ +/* Group.java -- Represents a group of Principals + Copyright (C) 1998, 2001 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + +package java.security.acl; + +import java.security.Principal; +import java.util.Enumeration; + +/** + * This interface represents a group of <code>Principals</code>. Note that + * since this interface extends <code>Principal</code>, a <code>Group</code> + * can be used where ever a <code>Principal</code> is requested. This + * includes arguments to the methods in this interface. + * + * @version 0.0 + * + * @author Aaron M. Renn (arenn@urbanophile.com) + */ +public interface Group extends Principal +{ + /** + * This method adds a new <code>Principal</code> to this group. + * + * @param user The new <code>Principal</code> to add + * + * @return <code>true</code> if the user was successfully added or <code>false</code> if the user is already a member + */ + boolean addMember(Principal user); + + /** + * This method deletes a member from the group. + * + * @param user The <code>Principal</code> to delete + * + * @return <code>true</code> if the user was successfully deleted or <code>false</code> if the user is not a member of the group + */ + boolean removeMember(Principal user); + + /** + * This method tests whether or not a given <code>Principal</code> is a + * member of this group. + * + * @param member The <code>Principal</code> to test for membership + * + * @return <code>true</code> if the user is member, <code>false</code> otherwise + */ + boolean isMember(Principal member); + + /** + * This method returns a list of all members of the group as an + * <code>Enumeration</code>. + * + * @return The list of all members of the group + */ + Enumeration<? extends Principal> members(); +} |