Example usage for org.apache.lucene.index DocValues emptyNumeric

Introduction

In this page you can find the example usage for org.apache.lucene.index DocValues emptyNumeric.

Prototype

public static final NumericDocValues emptyNumeric() 

Source Link

Document

An empty NumericDocValues which returns no documents

Usage

From source file:org.apache.solr.uninverting.FieldCacheImpl.java

License:Apache License

@Override
public NumericDocValues getNumerics(LeafReader reader, String field, Parser parser) throws IOException {
    if (parser == null) {
        throw new NullPointerException();
    }//from   w  w  w .  j a  v a  2  s  . c om
    final NumericDocValues valuesIn = reader.getNumericDocValues(field);
    if (valuesIn != null) {
        return valuesIn;
    } else {
        final FieldInfo info = reader.getFieldInfos().fieldInfo(field);
        if (info == null) {
            return DocValues.emptyNumeric();
        } else if (info.getDocValuesType() != DocValuesType.NONE) {
            throw new IllegalStateException(
                    "Type mismatch: " + field + " was indexed as " + info.getDocValuesType());
        }

        if (parser instanceof PointParser) {
            // points case
            // no points in this segment
            if (info.getPointDimensionCount() == 0) {
                return DocValues.emptyNumeric();
            }
            if (info.getPointDimensionCount() != 1) {
                throw new IllegalStateException("Type mismatch: " + field + " was indexed with dimensions="
                        + info.getPointDimensionCount());
            }
            PointValues values = reader.getPointValues(field);
            // no actual points for this field (e.g. all points deleted)
            if (values == null || values.size() == 0) {
                return DocValues.emptyNumeric();
            }
            // not single-valued
            if (values.size() != values.getDocCount()) {
                throw new IllegalStateException(
                        "Type mismatch: " + field + " was indexed with multiple values, numValues="
                                + values.size() + ",numDocs=" + values.getDocCount());
            }
        } else {
            // postings case 
            // not indexed
            if (info.getIndexOptions() == IndexOptions.NONE) {
                return DocValues.emptyNumeric();
            }
        }

        return ((LongsFromArray) caches.get(Long.TYPE).get(reader, new CacheKey(field, parser))).iterator();
    }
}

---

From source file:org.meresco.lucene.search.DeDupFilterSuperCollector.java

License:Open Source License

@Override
public void setNextReader(AtomicReaderContext context) throws IOException {
    this.context = context;
    this.delegate.setNextReader(context);
    this.currentDocBase = context.docBase;
    NumericDocValues kv = context.reader().getNumericDocValues(this.keyName);
    if (kv == null)
        kv = DocValues.emptyNumeric();
    this.keyValues = kv;
    NumericDocValues sbv = null;/*from   www .  j a  va  2 s .  c o m*/
    if (this.sortByFieldName != null)
        sbv = context.reader().getNumericDocValues(this.sortByFieldName);
    if (sbv == null)
        sbv = DocValues.emptyNumeric();
    this.sortByValues = sbv;
    this.delegate.setNextReader(context);
}

---

From source file:org.meresco.lucene.search.GroupSuperCollector.java

License:Open Source License

@Override
public void setNextReader(AtomicReaderContext context) throws IOException {
    if (this.keyToDocIds == null) {
        float loadFactor = 0.75f;
        int maxDoc = (int) (ReaderUtil.getTopLevelContext(context).reader().maxDoc() * (1 + (1 - loadFactor)));
        this.keyToDocIds = new TLongObjectHashMap<int[]>(maxDoc / this.groupSuperCollector.subs.size() / 10,
                loadFactor);/* ww  w . j a  v  a2s . c om*/
        this.keyToDocId = new TLongIntHashMap(maxDoc / this.groupSuperCollector.subs.size(), loadFactor,
                NO_ENTRY_KEY, NO_ENTRY_VALUE);
    }
    this.context = context;
    this.delegate.setNextReader(context);
    NumericDocValues kv = context.reader().getNumericDocValues(this.keyName);
    if (kv == null)
        kv = DocValues.emptyNumeric();
    this.keyValues = kv;
    this.delegate.setNextReader(context);
}

---

From source file:org.neo4j.kernel.api.impl.index.IndexReaderStub.java

License:Open Source License

public IndexReaderStub(final Map<String, NumericDocValues> ndvs) {
    this.ndvs = s -> {
        NumericDocValues dv = ndvs.get(s);
        if (dv == null) {
            return DocValues.emptyNumeric();
        }//from w w w . j  a  v  a2  s. c  o m
        return dv;
    };
}

---

From source file:org.neo4j.kernel.api.impl.index.IndexReaderStub.java

License:Open Source License

@Override
public NumericDocValues getNormValues(String field) throws IOException {
    return DocValues.emptyNumeric();
}

---