- public AlbumImpl setDescription(String description) {
- this.description = checkNotNull(description, "description must not be null");
- return this;
+ public Modifier modify() throws IllegalStateException {
+ // TODO: reenable check for local Sones
+ return new Modifier() {
+ private Optional<String> title = absent();
+
+ private Optional<String> description = absent();
+
+ private Optional<String> albumImage = absent();
+
+ @Override
+ public Modifier setTitle(String title) {
+ this.title = fromNullable(title);
+ return this;
+ }
+
+ @Override
+ public Modifier setDescription(String description) {
+ this.description = fromNullable(description);
+ return this;
+ }
+
+ @Override
+ public Modifier setAlbumImage(String imageId) {
+ this.albumImage = fromNullable(imageId);
+ return this;
+ }
+
+ @Override
+ public Album update() throws IllegalStateException {
+ if (title.isPresent()) {
+ AlbumImpl.this.title = title.get();
+ }
+ if (description.isPresent()) {
+ AlbumImpl.this.description = description.get();
+ }
+ if (albumImage.isPresent()) {
+ AlbumImpl.this.albumImage = albumImage.get();
+ }
+ return AlbumImpl.this;
+ }
+ };