+ public synchronized Sone addLikedPostId(String postId) {
+ likedPostIds.add(postId);
+ return this;
+ }
+
+ /**
+ * Removes the given post ID from the list of posts this Sone likes.
+ *
+ * @param postId
+ * The ID of the post
+ * @return This Sone (for method chaining)
+ */
+ public synchronized Sone removeLikedPostId(String postId) {
+ likedPostIds.remove(postId);
+ return this;
+ }
+
+ /**
+ * Returns the IDs of all liked replies.
+ *
+ * @return All liked replies’ IDs
+ */
+ public Set<String> getLikedReplyIds() {
+ return Collections.unmodifiableSet(likedReplyIds);
+ }
+
+ /**
+ * Sets the IDs of all liked replies.
+ *
+ * @param likedReplyIds
+ * All liked replies’ IDs
+ * @return This Sone (for method chaining)
+ */
+ public synchronized Sone setLikeReplyIds(Set<String> likedReplyIds) {
+ this.likedReplyIds.clear();
+ this.likedReplyIds.addAll(likedReplyIds);
+ return this;
+ }
+
+ /**
+ * Checks whether the given reply ID is liked by this Sone.
+ *
+ * @param replyId
+ * The ID of the reply
+ * @return {@code true} if this Sone likes the given reply, {@code false}
+ * otherwise
+ */
+ public boolean isLikedReplyId(String replyId) {
+ return likedReplyIds.contains(replyId);
+ }
+
+ /**
+ * Adds the given reply ID to the list of replies this Sone likes.
+ *
+ * @param replyId
+ * The ID of the reply
+ * @return This Sone (for method chaining)
+ */
+ public synchronized Sone addLikedReplyId(String replyId) {
+ likedReplyIds.add(replyId);
+ return this;
+ }
+
+ /**
+ * Removes the given post ID from the list of replies this Sone likes.
+ *
+ * @param replyId
+ * The ID of the reply
+ * @return This Sone (for method chaining)
+ */
+ public synchronized Sone removeLikedReplyId(String replyId) {
+ likedReplyIds.remove(replyId);
+ return this;
+ }
+
+ /**
+ * Returns the albums of this Sone.
+ *
+ * @return The albums of this Sone
+ */
+ public List<Album> getAlbums() {
+ return Collections.unmodifiableList(albums);
+ }
+
+ /**
+ * Adds an album to this Sone.
+ *
+ * @param album
+ * The album to add
+ */
+ public synchronized void addAlbum(Album album) {
+ Validation.begin().isNotNull("Album", album).check().isEqual("Album Owner", album.getSone(), this).check();
+ albums.add(album);
+ }
+
+ /**
+ * Sets the albums of this Sone.
+ *
+ * @param albums
+ * The albums of this Sone
+ */
+ public synchronized void setAlbums(Collection<? extends Album> albums) {
+ Validation.begin().isNotNull("Albums", albums).check();
+ this.albums.clear();
+ for (Album album : albums) {
+ addAlbum(album);