Examples of org.exist.storage.NativeValueIndex.find()

        Sequence result = Sequence.EMPTY_SEQUENCE;


        if (comparisonCriterium instanceof Indexable) {
            final NativeValueIndex valueIndex = context.getBroker().getValueIndex();
            result =
                valueIndex.find(context.getWatchDog(), Constants.EQ, contextSequence.getDocumentSet(), null, NodeSet.ANCESTOR,
            qname, comparisonCriterium);
        } else {
            final String message = "The comparison criterium must be an Indexable: " +
              "boolean, numeric, string; instead your criterium has type " +
              Type.getTypeName(comparisonCriterium.getType());


    final DocumentSet documentSet = getPolicyDocuments(broker, true);
    final NodeSet nodeSet = documentSet.docsToNodeSet();


        final NativeValueIndex valueIndex = broker.getValueIndex();
        final Sequence results = valueIndex.find(null, Constants.EQ, documentSet, null, NodeSet.ANCESTOR, attributeQName, comparison);
//        Sequence results = index.findByQName(attributeQName, comparison, nodeSet);
    //TODO : should we honour (# exist:force-index-use #) ? 


    return (results == null) ? null : results.getDocumentSet();
  }

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