1 package org.apache.struts2; 2 3 import org.apache.struts2.MessageAware; 4 5 /*** 6 * Implemented by actions which wish to execute some validation logic before their action method. Useful for 7 * cross-field validations. 8 * 9 * @author crazybob@google.com (Bob Lee) 10 */ 11 public interface Validatable extends MessageAware { 12 13 /*** 14 * Validates input. Executes before action method. 15 */ 16 public void validate(); 17 }