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

Introduction

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

Prototype

DocIdSetIterator

Source Link

Usage

From source file:proj.zoie.api.impl.util.ArrayDocIdSet.java

License:Apache License

@Override
public DocIdSetIterator iterator() {
    return new DocIdSetIterator() {
        int doc = -1;
        int current = -1;
        int largest = _lengthminusone;

        @Override//from  w  w w  . ja v  a2s .c o  m
        public int docID() {
            return doc;
        }

        @Override
        public int nextDoc() throws IOException {
            if (current < _lengthminusone) {
                current++;
                doc = _docids[current];
                return doc;
            }
            return DocIdSetIterator.NO_MORE_DOCS;
        }

        @Override
        public int advance(int target) throws IOException {
            int idx = current < 0 ? binarySearch(_docids, target)
                    : binarySearch(_docids, target, current, largest);
            //  int idx = Arrays.binarySearch(_docids,target);
            if (idx < 0) {
                idx = -(idx + 1);
                if (idx >= _docids.length)
                    return DocIdSetIterator.NO_MORE_DOCS;
            }
            current = idx;
            doc = _docids[current];
            return doc;
        }
    };
}

From source file:proj.zoie.api.UIDDocIdSet.java

License:Apache License

@Override
public DocIdSetIterator iterator() {
    return new DocIdSetIterator() {
        int doc = -1;
        int current = -1;

        @Override//from   w ww .  j a v a  2 s .com
        public int docID() {
            return doc;
        }

        @Override
        public int nextDoc() throws IOException {
            if (current < _sorted.length - 1) {
                current++;
                doc = _sorted[current];
                return doc;
            }
            return DocIdSetIterator.NO_MORE_DOCS;
        }

        @Override
        public int advance(int target) throws IOException {
            int idx = Arrays.binarySearch(_sorted, target);
            if (idx < 0) {
                idx = -(idx + 1);
                if (idx >= _sorted.length)
                    return DocIdSetIterator.NO_MORE_DOCS;
            }
            current = idx;
            doc = _sorted[current];
            return doc;
        }

    };
}