Added option to delete messages - for now only for the client locally

common/src/main/java/envoy/event/MessageDeletion.java

@@ -0,0 +1,34 @@
+package envoy.event;
+
+/**
+ * Conveys the deletion of a message between clients and server.
+ *
+ * @author Leon Hofmeister
+ * @since Envoy Common v0.3-beta
+ */
+public class MessageDeletion extends Event<Long> {
+
+	private static final long serialVersionUID = 1L;
+
+	private transient boolean ownEvent;
+
+	/**
+	 * @param messageID the ID of the deleted message
+	 * @since Envoy Common v0.3-beta
+	 */
+	public MessageDeletion(long messageID) { super(messageID); }
+
+	/**
+	 * @return whether the current user was the creator of this event.
+	 * @since Envoy Common v0.3-beta
+	 */
+	public boolean isOwnEvent() { return ownEvent; }
+
+	/**
+	 * Marks this event as being sent by this user. Is needed for a bug free
+	 * and efficient selection clearing.
+	 *
+	 * @since Envoy Common v0.3-beta
+	 */
+	public void setOwnEvent() { ownEvent = true; }
+}