private Analyzer getLuceneAnalyzer() throws ProviderException {
   try {
     Class clazz = ClassUtil.findClass("", m_analyzerClass);
     Constructor constructor = clazz.getConstructor(Version.LUCENE_36.getClass());
     Analyzer analyzer = (Analyzer) constructor.newInstance(Version.LUCENE_36);
     return analyzer;
   } catch (Exception e) {
     String msg = "Could not get LuceneAnalyzer class " + m_analyzerClass + ", reason: ";
     log.error(msg, e);
     throw new ProviderException(msg + e);
   }
 }
 protected <N extends Number> NumericRangeQuery<?> numericRange(
     Class<N> clazz,
     String field,
     @Nullable N min,
     @Nullable N max,
     boolean minInc,
     boolean maxInc) {
   if (clazz.equals(Integer.class)) {
     return NumericRangeQuery.newIntRange(field, (Integer) min, (Integer) max, minInc, maxInc);
   } else if (clazz.equals(Double.class)) {
     return NumericRangeQuery.newDoubleRange(field, (Double) min, (Double) max, minInc, minInc);
   } else if (clazz.equals(Float.class)) {
     return NumericRangeQuery.newFloatRange(field, (Float) min, (Float) max, minInc, minInc);
   } else if (clazz.equals(Long.class)) {
     return NumericRangeQuery.newLongRange(field, (Long) min, (Long) max, minInc, minInc);
   } else if (clazz.equals(Byte.class) || clazz.equals(Short.class)) {
     return NumericRangeQuery.newIntRange(
         field,
         min != null ? min.intValue() : null,
         max != null ? max.intValue() : null,
         minInc,
         maxInc);
   } else {
     throw new IllegalArgumentException("Unsupported numeric type " + clazz.getName());
   }
 }