private Query getIntIn(final String fieldName, final String value) {
        final int[] in = getInts(fieldName, value);
        if (in.length > 0) {
            if (in.length == 1) {
                final int num = in[0];
                return IntField.newExactQuery(fieldName, num);
            } else {
                return IntField.newSetQuery(fieldName, in);
            }
        }

        return null;
    }
Convert our query objects to a LUCENE query.
stroom-index/stroom-index-lucene980/src/main/java/stroom/index/lucene980/SearchExpressionQueryBuilder.java