deprecate translation update and add replacement

src/main/java/de/marhali/easyi18n/model/LegacyTranslationUpdate.java

@@ -0,0 +1,47 @@
+package de.marhali.easyi18n.model;
+
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * Represents an update for a translated I18n-Key. Supports key creation, manipulation and deletion.
+ * @author marhali
+ */
+@Deprecated
+public class LegacyTranslationUpdate {
+
+    private final @Nullable LegacyKeyedTranslation origin;
+    private final @Nullable LegacyKeyedTranslation change;
+
+    public LegacyTranslationUpdate(@Nullable LegacyKeyedTranslation origin, @Nullable LegacyKeyedTranslation change) {
+        this.origin = origin;
+        this.change = change;
+    }
+
+    public LegacyKeyedTranslation getOrigin() {
+        return origin;
+    }
+
+    public LegacyKeyedTranslation getChange() {
+        return change;
+    }
+
+    public boolean isCreation() {
+        return origin == null;
+    }
+
+    public boolean isDeletion() {
+        return change == null;
+    }
+
+    public boolean isKeyChange() {
+        return origin != null && change != null && !origin.getKey().equals(change.getKey());
+    }
+
+    @Override
+    public String toString() {
+        return "TranslationUpdate{" +
+                "origin=" + origin +
+                ", change=" + change +
+                '}';
+    }
+}

src/main/java/de/marhali/easyi18n/model/TranslationUpdate.java

@@ -1,4 +1,48 @@
 package de.marhali.easyi18n.model;
 
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * Represents an update for a translated i18n key.
+ * Supports translation creation, manipulation and deletion.
+ *
+ * @author marhali
+ */
 public class TranslationUpdate {
+
+    private final @Nullable KeyedTranslation origin;
+    private final @Nullable KeyedTranslation change;
+
+    public TranslationUpdate(@Nullable KeyedTranslation origin, @Nullable KeyedTranslation change) {
+        this.origin = origin;
+        this.change = change;
+    }
+
+    public @Nullable KeyedTranslation getOrigin() {
+        return origin;
+    }
+
+    public @Nullable KeyedTranslation getChange() {
+        return change;
+    }
+
+    public boolean isCreation() {
+        return this.origin == null;
+    }
+
+    public boolean isDeletion() {
+        return this.change == null;
+    }
+
+    public boolean isKeyChange() {
+        return this.origin != null && this.change != null && !this.origin.getKey().equals(this.change.getKey());
+    }
+
+    @Override
+    public String toString() {
+        return "TranslationUpdate{" +
+                "origin=" + origin +
+                ", change=" + change +
+                '}';
+    }
 }