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1
56 package org.objectstyle.cayenne.modeler.util;
57
58 import java.util.Map  ;
59
60 import org.objectstyle.cayenne.util.Util;
61 import org.scopemvc.core.Selector;
62 import org.scopemvc.model.basic.BasicModel;
63
64
70 public abstract class MapModel extends BasicModel {
71
72 protected Map map;
73
74 public MapModel() {
75 super();
76 }
77
78 public abstract Selector selectorForKey(String key);
79
80 public abstract String defaultForKey(String key);
81
82 public abstract String [] supportedProperties();
83
84
87 public void storeProperties(Map map) {
88 String [] properties = supportedProperties();
89 for (int i = 0; i < properties.length; i++) {
90 map.put(properties[i], this.map.get(properties[i]));
91 }
92 }
93
94 public void setMap(Map map) {
95 this.map = map;
96 }
97
98 public void setProperty(String key, String value) {
99 if (map != null) {
100
101 if (Util.nullSafeEquals(defaultForKey(key), value)) {
102 value = null;
103 }
104
105 Object oldValue = map.put(key, value);
106 if (!Util.nullSafeEquals(oldValue, value)) {
107 fireModelChange(VALUE_CHANGED, selectorForKey(key));
108 }
109 }
110 }
111
112 public String getProperty(String key) {
113 String value = (map != null) ? (String ) map.get(key) : null;
114 return (value != null) ? value : defaultForKey(key);
115 }
116
117 }
118 |
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