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1 /* 2 * FeatureMap.java 3 * 4 * Copyright (c) 1998-2001, The University of Sheffield. 5 * 6 * This file is part of GATE (see http://gate.ac.uk/), and is free 7 * software, licenced under the GNU Library General Public License, 8 * Version 2, June 1991 (in the distribution as file licence.html, 9 * and also available at http://gate.ac.uk/gate/licence.html). 10 * 11 * Hamish Cunningham, Jan/19/2000 12 * 13 * $Id: FeatureMap.java,v 1.7 2001/11/12 17:14:11 kalina Exp $ 14 */ 15 16 package gate; 17 import java.util.*; 18 import gate.util.*; 19 import gate.event.*; 20 21 /** An attribute-value matrix. Represents the content of an annotation, the 22 * meta-data on a resource, and anything else we feel like. 23 * 24 * The event code is needed so a persistent annotation can fire updated events 25 * when its features are updated 26 */ 27 public interface FeatureMap extends Map 28 { 29 /** Tests if <b>this</b> featureMap object includes aFeatureMap features. 30 * @param aFeatureMap object which will be included or not in <b>this</b> 31 * FeatureMap obj. 32 * @return <code>true</code> if <b>this</b> includes aFeatureMap 33 * and <code>false</code> if not. 34 */ 35 public boolean subsumes(FeatureMap aFeatureMap); 36 37 /** Tests if <b>this</b> featureMap object includes aFeatureMap but only 38 * for the features present in the aFeatureNamesSet. 39 * @param aFeatureMap which will be included or not in <b>this</b> 40 * FeatureMap obj. 41 * @param aFeatureNamesSet is a set of strings representing the names of the 42 * features that would be considered for subsumes. 43 * @return <code>true</code> if all features present in the aFeaturesNameSet 44 * from aFeatureMap are included in <b>this</b> obj, or <code>false</code> 45 * otherwise. 46 */ 47 public boolean subsumes(FeatureMap aFeatureMap, Set aFeatureNamesSet); 48 49 /** 50 * 51 * Removes a gate listener 52 */ 53 public void removeFeatureMapListener(FeatureMapListener l); 54 /** 55 * 56 * Adds a gate listener 57 */ 58 public void addFeatureMapListener(FeatureMapListener l); 59 60 } // interface FeatureMap 61
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