#390 - ENH: Add Change log mechanism - javadoc update - no effective change

src/main/java/com/avaje/ebean/event/changelog/ChangeType.java

@@ -26,6 +26,12 @@ public enum ChangeType {
     this.code = code;
   }
 
+  /**
+   * Return the short code for the ChangeType.
+   * <p>
+   * I - Insert, U - Update and D - Delete.
+   * </p>
+   */
   public String getCode() {
     return code;
   }

src/main/java/com/avaje/ebean/event/changelog/TxnState.java

@@ -34,6 +34,12 @@ public enum TxnState {
     this.code = code;
   }
 
+  /**
+   * Return the short code for the transaction state.
+   * <p>
+   * C - Committed, R - Rollback and I for In progress.
+   * </p>
+   */
   public String getCode() {
     return code;
   }