001 package data.events; 002 003 import java.util.EventObject; 004 005 import data.*; 006 007 /** 008 * An event indicating a change in a Catalog's contents. 009 * 010 * @see ListenableCatalog 011 * 012 * @author Steffen Zschaler 013 * @version 2.0 19/08/1999 014 * @since v2.0 015 */ 016 public class CatalogChangeEvent<T extends CatalogItem> extends EventObject { 017 018 /** 019 * ID for serialization. 020 */ 021 private static final long serialVersionUID = 3908959651396115296L; 022 023 /** 024 * The CatalogItem affected by the change. 025 * 026 * @serial 027 */ 028 private T m_ciAffected; 029 030 /** 031 * The DataBasket that was used to perform the operation. 032 * 033 * @serial 034 */ 035 private DataBasket m_dbBasket; 036 037 /** 038 * Create a new CatalogChangeEvent. 039 * 040 * @param lcSource the Catalog that triggers the event. 041 * @param ciAffected the affected CatalogItem. 042 * @param db the DataBasket that was used to perform the operation. 043 */ 044 public CatalogChangeEvent(ListenableCatalog<T> lcSource, T ciAffected, DataBasket db) { 045 super(lcSource); 046 047 m_ciAffected = ciAffected; 048 m_dbBasket = db; 049 } 050 051 /** 052 * Get the item that is affected by the change. 053 * 054 * @override Never. 055 */ 056 public T getAffectedItem() { 057 return m_ciAffected; 058 } 059 060 /** 061 * Get the DataBasket that was used to perform the operation. 062 * 063 * @override Never. 064 */ 065 public DataBasket getBasket() { 066 return m_dbBasket; 067 } 068 }