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1
11 package org.eclipse.ui.internal.preferences;
12
13 import java.util.HashSet  ;
14 import java.util.Set ;
15
16 import org.eclipse.core.runtime.Preferences;
17
18
21 public final class PreferencesAdapter extends PropertyMapAdapter {
22 private Preferences store;
23
24 private Preferences.IPropertyChangeListener listener = new Preferences.IPropertyChangeListener() {
25 public void propertyChange(Preferences.PropertyChangeEvent event) {
26 firePropertyChange(event.getProperty());
27 }
28 };
29
30 public PreferencesAdapter(Preferences toConvert) {
31 this.store = toConvert;
32 }
33
34
37 protected void attachListener() {
38 store.addPropertyChangeListener(listener);
39 }
40
41
44 protected void detachListener() {
45 store.removePropertyChangeListener(listener);
46 }
47
48
51 public Set keySet() {
52 Set result = new HashSet ();
53
54 String [] names = store.propertyNames();
55
56 for (int i = 0; i < names.length; i++) {
57 String string = names[i];
58
59 result.add(string);
60 }
61
62 return result;
63 }
64
65
68 public Object getValue(String propertyId, Class propertyType) {
69 if (propertyType.isAssignableFrom(String .class)) {
70 return store.getString(propertyId);
71 }
72
73 if (propertyType == Boolean .class) {
74 return store.getBoolean(propertyId) ? Boolean.TRUE : Boolean.FALSE;
75 }
76
77 if (propertyType == Double .class) {
78 return new Double (store.getDouble(propertyId));
79 }
80
81 if (propertyType == Float .class) {
82 return new Float (store.getFloat(propertyId));
83 }
84
85 if (propertyType == Integer .class) {
86 return new Integer (store.getInt(propertyId));
87 }
88
89 if (propertyType == Long .class) {
90 return new Long (store.getLong(propertyId));
91 }
92
93 return null;
94 }
95
96
99 public boolean propertyExists(String propertyId) {
100 return store.contains(propertyId);
101 }
102
103
106 public void setValue(String propertyId, Object newValue) {
107 if (newValue instanceof String ) {
108 store.setValue(propertyId, (String )newValue);
109 } else if (newValue instanceof Integer ) {
110 store.setValue(propertyId, ((Integer )newValue).intValue());
111 } else if (newValue instanceof Boolean ) {
112 store.setValue(propertyId, ((Boolean )newValue).booleanValue());
113 } else if (newValue instanceof Double ) {
114 store.setValue(propertyId, ((Double )newValue).doubleValue());
115 } else if (newValue instanceof Float ) {
116 store.setValue(propertyId, ((Float )newValue).floatValue());
117 } else if (newValue instanceof Integer ) {
118 store.setValue(propertyId, ((Integer )newValue).intValue());
119 } else if (newValue instanceof Long ) {
120 store.setValue(propertyId, ((Long )newValue).longValue());
121 }
122 }
123
124 }
125 |
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