1 | static long objectID(O o) {
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2 | if (o == null) ret 0; |
3 | Map generalMap = vm_generalMap(); |
4 | if (generalMap == null) fail("Please upgrade JavaX");
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5 | synchronized(generalMap) {
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6 | Map map = cast generalMap.get("objectIDs");
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7 | if (map == null) {
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8 | pcall-short {
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9 | map = (Map) nuForeignObject(javax(), className(javax()) + '$WeakIdentityHashMap); |
10 | } |
11 | if (map == null) map = new WeakIdentityHashMap; // older JavaX |
12 | generalMap.put("objectIDs", map);
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13 | } |
14 | Long l = cast map.get(o); |
15 | if (l == null) {
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16 | l = toLong(generalMap.get("lastObjectID"))+1;
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17 | generalMap.put("lastObjectID", l);
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18 | map.put(o, l); |
19 | } |
20 | ret l; |
21 | } |
22 | } |
23 | |
24 | static Collection<Long> objectID_liveIDs() {
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25 | Map generalMap = cast getOpt(javax(), 'generalMap); |
26 | if (generalMap == null) ret new L; |
27 | synchronized(generalMap) {
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28 | ret cloneList(values((Map<O, Long>) generalMap.get("objectIDs")));
|
29 | } |
30 | } |
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| Snippet ID: | #1010611 |
| Snippet name: | objectID - assign a unique long value to each queried object |
| Eternal ID of this version: | #1010611/13 |
| Text MD5: | 64f68f431764fd8ac9bc11cd26860dd8 |
| Author: | stefan |
| Category: | javax |
| Type: | JavaX fragment (include) |
| Public (visible to everyone): | Yes |
| Archived (hidden from active list): | No |
| Created/modified: | 2021-10-23 05:20:10 |
| Source code size: | 936 bytes / 30 lines |
| Pitched / IR pitched: | No / No |
| Views / Downloads: | 437 / 479 |
| Version history: | 12 change(s) |
| Referenced in: | [show references] |