/**
 *
 * Copyright the original author or authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jivesoftware.smack.roster.rosterstore;

import java.util.Collection;

import org.jivesoftware.smack.roster.packet.RosterPacket;
import org.jxmpp.jid.Jid;

/**
 * This is an interface for persistent roster store needed to implement
 * roster versioning as per RFC 6121.
 */

public interface RosterStore {

    /**
     * This method returns a collection of all roster items contained in this store.
     * @return List of {@link org.jivesoftware.smack.roster.RosterEntry}
     */
    public Collection<RosterPacket.Item> getEntries();
    /**
     * This method returns the roster item in this store for the given JID.
     * @param bareJid The bare JID of the RosterEntry
     * @return The {@link org.jivesoftware.smack.roster.RosterEntry} which belongs to that user
     */
    public RosterPacket.Item getEntry(Jid bareJid);
    /**
     * This method returns the version number as specified by the "ver" attribute
     * of the local store. For a fresh store, this MUST be the empty string.
     * @return local roster version
     */
    public String getRosterVersion();
    /**
     * This method stores a new roster entry in this store or updates an existing one.
     * @param item the entry to store
     * @param version the new roster version
     * @return True if successful
     */
    public boolean addEntry(RosterPacket.Item item, String version);
    /**
     * This method updates the store so that it contains only the given entries.
     * @param items the entries to store
     * @param version the new roster version
     * @return True if successful
     */
    public boolean resetEntries(Collection<RosterPacket.Item> items, String version);
    /**
     * Removes an entry from the store.
     * @param bareJid The bare JID of the entry to be removed
     * @param version the new roster version
     * @return True if successful
     */
    public boolean removeEntry(Jid bareJid, String version);

}

@@ -686,16 +686,39 @@
 lection;
+%0Aimport java.util.List;
 %0A%0Aimport
@@ -988,18 +988,12 @@
 s a 
-collection
+list
  of 
@@ -1029,24 +1029,114 @@
  this store.
+ If there was an error while loading the store, then %3Ccode%3Enull%3C/code%3E is returned.%0A     *
 %0A     * @ret
@@ -1196,16 +1196,38 @@
 erEntry%7D
+ or %3Ccode%3Enull%3C/code%3E.
 %0A     */
@@ -1238,26 +1238,20 @@
  public 
-Collection
+List
 %3CRosterP
@@ -1272,24 +1272,25 @@
 tEntries();%0A
+%0A
     /**%0A    

Make RosterStore.getEntries() return a List