Implemented GroupMessageStatusChangeEvent

src/main/java/envoy/event/GroupMessageStatusChangeEvent.java

@@ -0,0 +1,44 @@
+package envoy.event;
+
+import java.util.Date;
+
+import envoy.data.GroupMessage;
+import envoy.data.Message.MessageStatus;
+
+/**
+ * Project: <strong>envoy-common</strong><br>
+ * File: <strong>GroupMessageStatusChangeEvent.java</strong><br>
+ * Created: <strong>18.04.2020</strong><br>
+ * 
+ * @author Maximilian K&auml;fer
+ * @since Envoy Common v0.1-beta
+ */
+public class GroupMessageStatusChangeEvent extends MessageStatusChangeEvent {
+
+	private final long memberID;
+
+	private static final long serialVersionUID = 0L;
+	
+	/**
+	 * Initializes a {@link GroupMessageStatusChangeEvent}.
+	 * 
+	 * @param id     the ID of the {@link GroupMessage} this event is related to
+	 * @param status the status of this specific members {@link GroupMessage}.
+	 * @param date   the date at which the MessageStatus change occurred for this
+	 *               specific member
+	 * @since Envoy Common v0.1-beta
+	 */
+	public GroupMessageStatusChangeEvent(long id, MessageStatus status, Date date, long memberID) {
+		super(id, status, date);
+		this.memberID = memberID;
+	}
+
+	/**
+	 * @return the memberID which the user who sends this event has
+	 * @since Envoy Common v0.1-beta
+	 */
+	public long getMemberID() { return memberID; }
+
+	@Override
+	public String toString() { return String.format("GroupMessageStatusChangeEvent[meta=%s, memberID=%d]", super.toString(), memberID); }
+}