1 | sclass CalculatedConceptFieldIndex<A extends Concept, Val> implements IConceptIndex {
|
2 | Class<A> cc; |
3 | IF1<A, Val> f; |
4 | new HashMap<A, Val> objectToValue; |
5 | new MultiMap<Val, A> valueToObject; |
6 | |
7 | *() {}
|
8 | *(Class<A> cc, IF1<A, Val> f) { this(db_mainConcepts(), cc, f); }
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9 | |
10 | *(Concepts concepts, Class<A> *cc, IF1<A, Val> *f) {
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11 | concepts.addConceptIndex(this); |
12 | for (A c : list(concepts, cc)) |
13 | updateImpl(c); |
14 | } |
15 | |
16 | public void update(Concept c) {
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17 | if (!isInstance(cc, c)) ret; |
18 | updateImpl((A) c); |
19 | } |
20 | |
21 | synchronized void updateImpl(A c) {
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22 | Val newValue = callF(f, c); |
23 | Val oldValue = objectToValue.get(c); |
24 | if (neq(newValue, oldValue)) {
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25 | valueToObject.remove(oldValue, (A) c); |
26 | valueToObject.put(newValue, (A) c); |
27 | objectToValue.put((A) c, newValue); |
28 | } |
29 | } |
30 | |
31 | public synchronized void remove(Concept c) {
|
32 | if (!isInstance(cc, c)) ret; |
33 | Val value = callF(f, (A) c); |
34 | objectToValue.remove(c); |
35 | valueToObject.remove(value, (A) c); |
36 | } |
37 | |
38 | synchronized A get(Val value) {
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39 | ret valueToObject.getFirst(value); |
40 | } |
41 | |
42 | public synchronized L<A> getAll(Val value) {
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43 | ret valueToObject.get(value); |
44 | } |
45 | } |
Began life as a copy of #1014416
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| Snippet ID: | #1022312 |
| Snippet name: | CalculatedConceptFieldIndex |
| Eternal ID of this version: | #1022312/7 |
| Text MD5: | 249ab17efcd8907307254b19f4ca3983 |
| Author: | stefan |
| Category: | javax / concepts |
| Type: | JavaX fragment (include) |
| Public (visible to everyone): | Yes |
| Archived (hidden from active list): | No |
| Created/modified: | 2019-03-13 06:12:09 |
| Source code size: | 1214 bytes / 45 lines |
| Pitched / IR pitched: | No / No |
| Views / Downloads: | 264 / 731 |
| Version history: | 6 change(s) |
| Referenced in: | [show references] |