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1
11 package org.eclipse.core.internal.registry;
12
13 import java.util.Map  ;
14 import org.eclipse.core.runtime.InvalidRegistryObjectException;
15
16
19 public class TemporaryObjectManager implements IObjectManager {
20 private Map actualObjects; private RegistryObjectManager parent;
23 public TemporaryObjectManager(Map actualObjects, RegistryObjectManager parent) {
24 this.actualObjects = actualObjects;
25 this.parent = parent;
26 }
27
28 public Handle getHandle(int id, byte type) {
29 switch (type) {
30 case RegistryObjectManager.EXTENSION_POINT :
31 return new ExtensionPointHandle(this, id);
32
33 case RegistryObjectManager.EXTENSION :
34 return new ExtensionHandle(this, id);
35
36 case RegistryObjectManager.CONFIGURATION_ELEMENT :
37 return new ConfigurationElementHandle(this, id);
38
39 case RegistryObjectManager.THIRDLEVEL_CONFIGURATION_ELEMENT :
40 default : return new ThirdLevelConfigurationElementHandle(this, id);
42 }
43 }
44
45 public Handle[] getHandles(int[] ids, byte type) {
46 Handle[] results = null;
47 int nbrId = ids.length;
48 switch (type) {
49 case RegistryObjectManager.EXTENSION_POINT :
50 if (nbrId == 0)
51 return ExtensionPointHandle.EMPTY_ARRAY;
52 results = new ExtensionPointHandle[nbrId];
53 for (int i = 0; i < nbrId; i++) {
54 results[i] = new ExtensionPointHandle(this, ids[i]);
55 }
56 break;
57
58 case RegistryObjectManager.EXTENSION :
59 if (nbrId == 0)
60 return ExtensionHandle.EMPTY_ARRAY;
61 results = new ExtensionHandle[nbrId];
62 for (int i = 0; i < nbrId; i++) {
63 results[i] = new ExtensionHandle(this, ids[i]);
64 }
65 break;
66
67 case RegistryObjectManager.CONFIGURATION_ELEMENT :
68 if (nbrId == 0)
69 return ConfigurationElementHandle.EMPTY_ARRAY;
70 results = new ConfigurationElementHandle[nbrId];
71 for (int i = 0; i < nbrId; i++) {
72 results[i] = new ConfigurationElementHandle(this, ids[i]);
73 }
74 break;
75
76 case RegistryObjectManager.THIRDLEVEL_CONFIGURATION_ELEMENT :
77 if (nbrId == 0)
78 return ConfigurationElementHandle.EMPTY_ARRAY;
79 results = new ThirdLevelConfigurationElementHandle[nbrId];
80 for (int i = 0; i < nbrId; i++) {
81 results[i] = new ThirdLevelConfigurationElementHandle(this, ids[i]);
82 }
83 break;
84 }
85 return results;
86 }
87
88 synchronized public Object getObject(int id, byte type) {
89 Object result = null;
90 try {
91 result = parent.getObject(id, type);
92 } catch (InvalidRegistryObjectException e) {
93 if (actualObjects != null) {
94 result = actualObjects.get(new Integer (id));
95 }
96 }
97 if (result == null)
98 throw new InvalidRegistryObjectException();
99 return result;
100 }
101
102 synchronized public RegistryObject[] getObjects(int[] values, byte type) {
103 if (values.length == 0) {
104 switch (type) {
105 case RegistryObjectManager.EXTENSION_POINT :
106 return ExtensionPoint.EMPTY_ARRAY;
107 case RegistryObjectManager.EXTENSION :
108 return Extension.EMPTY_ARRAY;
109 case RegistryObjectManager.CONFIGURATION_ELEMENT :
110 case RegistryObjectManager.THIRDLEVEL_CONFIGURATION_ELEMENT :
111 return ConfigurationElement.EMPTY_ARRAY;
112 }
113 }
114
115 RegistryObject[] results = null;
116 switch (type) {
117 case RegistryObjectManager.EXTENSION_POINT :
118 results = new ExtensionPoint[values.length];
119 break;
120 case RegistryObjectManager.EXTENSION :
121 results = new Extension[values.length];
122 break;
123 case RegistryObjectManager.CONFIGURATION_ELEMENT :
124 case RegistryObjectManager.THIRDLEVEL_CONFIGURATION_ELEMENT :
125 results = new ConfigurationElement[values.length];
126 break;
127 }
128 for (int i = 0; i < values.length; i++) {
129 results[i] = (RegistryObject) getObject(values[i], type);
130 }
131 return results;
132 }
133
134 public synchronized void close() {
135 actualObjects = null;
136 }
137 }
138 |
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