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DatastoreEvent |
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1 /* 2 * Copyright (c) 1998-2001, The University of Sheffield. 3 * 4 * This file is part of GATE (see http://gate.ac.uk/), and is free 5 * software, licenced under the GNU Library General Public License, 6 * Version 2, June 1991 (in the distribution as file licence.html, 7 * and also available at http://gate.ac.uk/gate/licence.html). 8 * 9 * Valentin Tablan 21/04/2001 10 * 11 * $Id: DatastoreEvent.java,v 1.3 2001/10/31 17:20:10 kalina Exp $ 12 */ 13 package gate.event; 14 15 import gate.*; 16 /** 17 * This class models events fired by datastores. Such events occur when new 18 * resources are adopted by a datastore or when an existing resource from 19 * the datastore is deleted. 20 */ 21 public class DatastoreEvent extends GateEvent { 22 23 /** 24 * Constructor. 25 * @param source the datastore that originated the event. 26 * @param type the event type. 27 * @param res the resource that has been adopted/deleted/etc. 28 * @param resourceID the ID corresponding to the resource in this datastore 29 */ 30 public DatastoreEvent(DataStore source, int type, Resource res, 31 Object resourceID) { 32 super(source, type); 33 this.resource = res; 34 this.resourceID = resourceID; 35 } 36 37 protected Resource resource; 38 protected Object resourceID; 39 40 /** 41 * The type of events fired when a resource has been adopted 42 */ 43 public static final int RESOURCE_ADOPTED = 301; 44 45 /** 46 * The type of events fired when a resource has been deleted from a datastore 47 */ 48 public static final int RESOURCE_DELETED = 302; 49 50 /** 51 * The type of events fired when a resource has wrote into the datastore 52 */ 53 public static final int RESOURCE_WRITTEN = 303; 54 55 /** Gets the ID of the resource involved in this event */ 56 public Object getResourceID() { 57 return resourceID; 58 } 59 60 /** Gets the resource involved in this event */ 61 public gate.Resource getResource() { 62 return resource; 63 } 64 } 65
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DatastoreEvent |
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