/** Returns true iff <code>o</code> is equal to this. */
@Override
public boolean equals(Object o) {
if (!super.equals(o)) {
return false;
}
SpanPositionCheckQuery spcq = (SpanPositionCheckQuery) o;
return match.equals(spcq.match);
}
@Override
public Scorer scorer(
AtomicReaderContext context, boolean scoreDocsInOrder, boolean topScorer, Bits acceptDocs)
throws IOException {
if (stats == null) {
return null;
} else {
return new SpanScorer(
query.getSpans(context, acceptDocs, termContexts),
this,
similarity.sloppySimScorer(stats, context));
}
}
public SpanWeight(SpanQuery query, IndexSearcher searcher) throws IOException {
this.similarity = searcher.getSimilarity();
this.query = query;
termContexts = new HashMap<Term, TermContext>();
TreeSet<Term> terms = new TreeSet<Term>();
query.extractTerms(terms);
final IndexReaderContext context = searcher.getTopReaderContext();
final TermStatistics termStats[] = new TermStatistics[terms.size()];
int i = 0;
for (Term term : terms) {
TermContext state = TermContext.build(context, term, true);
termStats[i] = searcher.termStatistics(term, state);
termContexts.put(term, state);
i++;
}
final String field = query.getField();
if (field != null) {
stats =
similarity.computeWeight(
query.getBoost(), searcher.collectionStatistics(query.getField()), termStats);
}
}
@Override
public Query rewrite(IndexReader reader) throws IOException {
SpanPositionCheckQuery clone = null;
SpanQuery rewritten = (SpanQuery) match.rewrite(reader);
if (rewritten != match) {
clone = (SpanPositionCheckQuery) this.clone();
clone.match = rewritten;
}
if (clone != null) {
return clone; // some clauses rewrote
} else {
return this; // no clauses rewrote
}
}
@Override
public SpanWeight createWeight(IndexSearcher searcher, boolean needsScores) throws IOException {
SpanWeight matchWeight = match.createWeight(searcher, false);
return new SpanPositionCheckWeight(
matchWeight, searcher, needsScores ? getTermContexts(matchWeight) : null);
}
@Override
public String getField() {
return match.getField();
}
@Override
public int hashCode() {
return match.hashCode() ^ super.hashCode();
}
@Override
public void extractTerms(Set<Term> terms) {
match.extractTerms(terms);
}