BooleanScorer(
BooleanWeight weight,
boolean disableCoord,
int maxCoord,
Collection<BulkScorer> scorers,
int minShouldMatch,
boolean needsScores) {
if (minShouldMatch < 1 || minShouldMatch > scorers.size()) {
throw new IllegalArgumentException(
"minShouldMatch should be within 1..num_scorers. Got " + minShouldMatch);
}
if (scorers.size() <= 1) {
throw new IllegalArgumentException(
"This scorer can only be used with two scorers or more, got " + scorers.size());
}
for (int i = 0; i < buckets.length; i++) {
buckets[i] = new Bucket();
}
this.leads = new BulkScorerAndDoc[scorers.size()];
this.head = new HeadPriorityQueue(scorers.size() - minShouldMatch + 1);
this.tail = new TailPriorityQueue(minShouldMatch - 1);
this.minShouldMatch = minShouldMatch;
for (BulkScorer scorer : scorers) {
if (needsScores == false) {
// OrCollector calls score() all the time so we have to explicitly
// disable scoring in order to avoid decoding useless norms
scorer = BooleanWeight.disableScoring(scorer);
}
final BulkScorerAndDoc evicted = tail.insertWithOverflow(new BulkScorerAndDoc(scorer));
if (evicted != null) {
head.add(evicted);
}
}
this.cost = cost(scorers, minShouldMatch);
coordFactors = new float[scorers.size() + 1];
for (int i = 0; i < coordFactors.length; i++) {
coordFactors[i] = disableCoord ? 1.0f : weight.coord(i, maxCoord);
}
}
