Validation given values to disallow modifications.

diff --git a/src/main/java/net/pterodactylus/sone/data/Image.java b/src/main/java/net/pterodactylus/sone/data/Image.java
index 6c37633..c7a0a08 100644 (file)
--- a/src/main/java/net/pterodactylus/sone/data/Image.java
+++ b/src/main/java/net/pterodactylus/sone/data/Image.java
@@ -105,7 +105,7 @@ public class Image implements Fingerprintable {
         * @return This image
         */
        public Image setSone(Sone sone) {
-               Validation.begin().isNotNull("New Image Owner", sone);
+               Validation.begin().isNotNull("New Image Owner", sone).isEither("Old Image Owner", this.sone, null, sone).check();
                this.sone = sone;
                return this;
        }
@@ -128,7 +128,7 @@ public class Image implements Fingerprintable {
         * @return This image
         */
        public Image setAlbum(Album album) {
-               Validation.begin().isNotNull("New Album", album).check().isEqual("Album Owner and Image Owner", album.getSone(), getSone()).check();
+               Validation.begin().isNotNull("New Album", album).isEither("Old Album", this.album, null, album).check().isEqual("Album Owner and Image Owner", album.getSone(), getSone()).check();
                this.album = album;
                return this;
        }
@@ -151,7 +151,7 @@ public class Image implements Fingerprintable {
         * @return This image
         */
        public Image setKey(String key) {
-               Validation.begin().isNotNull("New Image Key", key).check();
+               Validation.begin().isNotNull("New Image Key", key).isEither("Old Image Key", this.key, null, key).check();
                this.key = key;
                return this;
        }
@@ -187,7 +187,7 @@ public class Image implements Fingerprintable {
         * @return This image
         */
        public Image setCreationTime(long creationTime) {
-               Validation.begin().isGreater("New Image Creation Time", creationTime, 0).check();
+               Validation.begin().isGreater("New Image Creation Time", creationTime, 0).isEither("Old Image Creation Time", this.creationTime, 0, creationTime).check();
                this.creationTime = creationTime;
                return this;
        }
@@ -210,7 +210,7 @@ public class Image implements Fingerprintable {
         * @return This image
         */
        public Image setWidth(int width) {
-               Validation.begin().isGreater("New Image Width", width, 0).check();
+               Validation.begin().isGreater("New Image Width", width, 0).isEither("Old Image Width", this.width, 0, width).check();
                this.width = width;
                return this;
        }
@@ -233,7 +233,7 @@ public class Image implements Fingerprintable {
         * @return This image
         */
        public Image setHeight(int height) {
-               Validation.begin().isGreater("New Image Height", height, 0);
+               Validation.begin().isGreater("New Image Height", height, 0).isEither("Old Image Height", this.height, 0, height).check();
                this.height = height;
                return this;
        }