[W8.6b][W13-B2]Bay Wei Heng

src/seedu/addressbook/data/tag/Tagging.java

@@ -0,0 +1,60 @@
+package seedu.addressbook.data.tag;
+
+import seedu.addressbook.data.person.Person;
+
+import java.util.ArrayList;
+
+/**
+ * Represents an adding or deleting of a tag for a specific person during a session
+ * Used for displaying tags changed at the end of a session
+ */
+
+public class Tagging {
+
+    private static ArrayList<Tagging> taggings;
+
+    public enum CHANGE {
+        ADD, DELETE
+    }
+
+    private final Person person;
+    private final Tag tag;
+    private final CHANGE change;
+
+    /**
+     * @param person person whose tag was changed
+     * @param tag tag that was changed
+     * @param change type of change
+     */
+    public Tagging(Person person, Tag tag, CHANGE change) {
+        this.person = person;
+        this.tag = tag;
+        this.change = change;
+    }
+
+    /**
+     * Adds tagging to class-level variable that stores all taggings
+     */
+    public static void addTagging(Tagging tagging) {
+        taggings.add(tagging);
+    }
+
+    /**
+     * @return all Taggings, representing all changes made to tags since start of session
+     */
+    public static ArrayList<Tagging> getTaggings() {
+        return taggings;
+    }
+
+    public Person getPerson() {
+        return person;
+    }
+
+    public Tag getTag() {
+        return tag;
+    }
+
+    public CHANGE getChange() {
+        return change;
+    }
+}