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< > BotCompany Repo | #1022312 // CalculatedConceptFieldIndex

JavaX fragment (include)

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sclass CalculatedConceptFieldIndex<A extends Concept, Val> implements IConceptIndex {
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  Class<A> cc;
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  IF1<A, Val> f;
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  new HashMap<A, Val> objectToValue;
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  new MultiMap<Val, A> valueToObject;
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  *() {}
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  *(Class<A> cc, IF1<A, Val> f) { this(db_mainConcepts(), cc, f); }
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  *(Concepts concepts, Class<A> *cc, IF1<A, Val> *f) {
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    concepts.addConceptIndex(this);
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    for (A c : list(concepts, cc))
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      updateImpl(c);
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  }
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  public void update(Concept c) {
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    if (!isInstance(cc, c)) ret;
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    updateImpl((A) c);
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  }
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  synchronized void updateImpl(A c) {
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    Val newValue = callF(f, c);
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    Val oldValue = objectToValue.get(c);
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    if (neq(newValue, oldValue)) {
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      valueToObject.remove(oldValue, (A) c);
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      valueToObject.put(newValue, (A) c);
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      objectToValue.put((A) c, newValue);
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    }
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  }
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  public synchronized void remove(Concept c) {
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    if (!isInstance(cc, c)) ret;
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    Val value = callF(f, (A) c);
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    objectToValue.remove(c);
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    valueToObject.remove(value, (A) c);
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  }
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  synchronized A get(Val value) {
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    ret valueToObject.getFirst(value);
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  }
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  public synchronized L<A> getAll(Val value) {
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    ret valueToObject.get(value);
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  }
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}

Author comment

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: 202 / 663
Version history: 6 change(s)
Referenced in: [show references]