Example usage for org.apache.lucene.search.spans Spans cost

Introduction

In this page you can find the example usage for org.apache.lucene.search.spans Spans cost.

Prototype

public abstract long cost();

Source Link

Document

Returns the estimated cost of this DocIdSetIterator .

Usage

From source file:com.shaie.annots.SpanAnnotationTermQuery.java

License:Apache License

@Override
public Spans getSpans(LeafReaderContext context, Bits acceptDocs, Map<Term, TermContext> termContexts)
        throws IOException {
    final Spans spans = super.getSpans(context, acceptDocs, termContexts);
    return new Spans() {
        private int start, end;
        final ByteArrayDataInput in = new ByteArrayDataInput();

        @Override//from www . j a v a 2  s.co m
        public int start() {
            return start;
        }

        @Override
        public boolean skipTo(int target) throws IOException {
            return spans.skipTo(target);
        }

        @Override
        public boolean next() throws IOException {
            if (!spans.next()) {
                return false;
            }
            if (!isPayloadAvailable()) {
                return next();
            }
            byte[] payload = getPayload().iterator().next();
            in.reset(payload);
            start = in.readVInt();
            end = in.readVInt() + start - 1; // end is inclusive
            return true;
        }

        @Override
        public boolean isPayloadAvailable() throws IOException {
            return spans.isPayloadAvailable();
        }

        @Override
        public Collection<byte[]> getPayload() throws IOException {
            return spans.getPayload();
        }

        @Override
        public int end() {
            return end;
        }

        @Override
        public int doc() {
            return spans.doc();
        }

        @Override
        public long cost() {
            return spans.cost();
        }
    };
}

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