Example usage for org.apache.lucene.util.mutable MutableValueBool MutableValueBool

Introduction

In this page you can find the example usage for org.apache.lucene.util.mutable MutableValueBool MutableValueBool.

Prototype

MutableValueBool

Source Link

Usage

From source file:org.apache.solr.schema.BoolField.java

License:Apache License

@Override
public FunctionValues getValues(Map context, AtomicReaderContext readerContext) throws IOException {
    final SortedDocValues sindex = FieldCache.DEFAULT.getTermsIndex(readerContext.reader(), field);

    // figure out what ord maps to true
    int nord = sindex.getValueCount();
    BytesRef br = new BytesRef();
    // if no values in the segment, default trueOrd to something other then -1 (missing)
    int tord = -2;
    for (int i = 0; i < nord; i++) {
        sindex.lookupOrd(i, br);//from   w w  w.ja  v  a 2  s  .  com
        if (br.length == 1 && br.bytes[br.offset] == 'T') {
            tord = i;
            break;
        }
    }

    final int trueOrd = tord;

    return new BoolDocValues(this) {
        @Override
        public boolean boolVal(int doc) {
            return sindex.getOrd(doc) == trueOrd;
        }

        @Override
        public boolean exists(int doc) {
            return sindex.getOrd(doc) != -1;
        }

        @Override
        public ValueFiller getValueFiller() {
            return new ValueFiller() {
                private final MutableValueBool mval = new MutableValueBool();

                @Override
                public MutableValue getValue() {
                    return mval;
                }

                @Override
                public void fillValue(int doc) {
                    int ord = sindex.getOrd(doc);
                    mval.value = (ord == trueOrd);
                    mval.exists = (ord != -1);
                }
            };
        }
    };
}

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