Example usage for org.apache.lucene.search CollectorManager CollectorManager

Introduction

In this page you can find the example usage for org.apache.lucene.search CollectorManager CollectorManager.

Prototype

CollectorManager

Source Link

Usage

From source file:com.lucene.MyIndexSearcher.java

License:Apache License

public MyTopDocs searchAfter(Query query, int numHits) throws IOException {

    final int limit = Math.max(1, reader.maxDoc());
    numHits = Math.min(numHits, limit);

    final int cappedNumHits = Math.min(numHits, limit);

    final CollectorManager<MyTopScoreDocCollector, MyTopDocs> manager = new CollectorManager<MyTopScoreDocCollector, MyTopDocs>() {

        @Override//from   www  .ja  v  a  2  s .c  o  m
        public MyTopScoreDocCollector newCollector() throws IOException {
            MyTopScoreDocCollector collector = MyTopScoreDocCollector.create(cappedNumHits);
            return collector;
        }

        @Override
        public MyTopDocs reduce(Collection<MyTopScoreDocCollector> collectors) throws IOException {
            final MyTopDocs[] topDocs = new MyTopDocs[collectors.size()];
            int i = 0;
            for (MyTopScoreDocCollector collector : collectors) {
                topDocs[i++] = collector.topDocs1();
            }
            MyTopDocs top = MyTopDocs.merge1(0, cappedNumHits, topDocs, true);
            return top;
        }
    };
    MyTopDocs result = search(query, manager);
    return result;
}

---