private FullTextQuery searchQuery(String searchQuery, String[] columns) {
      // lucene part
      Map<String, Float> boostPerField = new HashMap<String, Float>(2);
      boostPerField.put(columns[0], (float) 4);
      boostPerField.put(columns[1], (float) 3);

      FullTextSession ftEm = org.hibernate.search.Search
            .getFullTextSession(sessionFactory.getCurrentSession());

      QueryParser parser = new MultiFieldQueryParser(columns, ftEm
            .getSearchFactory().getAnalyzer("customanalyzer"),
            boostPerField);

      org.apache.lucene.search.Query luceneQuery = null;
      try {
         luceneQuery = parser.parse(searchQuery);
      } catch (ParseException e) {
         // TODO Auto-generated catch block
         e.printStackTrace();
         return null;
      }

      final FullTextQuery query = ftEm.createFullTextQuery(luceneQuery,
            persistentClass);

      return query;
   }

   @Field(index = Index.TOKENIZED)
   @FieldBridge(impl = CustomPropertyBridge.class)
   private Properties partnerSpec;

public class CustomPropertyBridge implements FieldBridge {

   /*
    * (non-Javadoc)
    *
    * @see org.hibernate.search.bridge.FieldBridge#set(java.lang.String,
    * java.lang.Object, org.apache.lucene.document.Document,
    * org.hibernate.search.bridge.LuceneOptions)
    */
   public void set(String name, Object value, Document document,
         LuceneOptions luceneOptions) {
      String fieldValue = "";
      Properties properties = (Properties) value;
      Enumeration<?> propertyValues = properties.elements();
      while (propertyValues.hasMoreElements()) {
         String v = (String) propertyValues.nextElement();
         fieldValue += v + " ";
      }
      Field field = new Field(name, fieldValue, luceneOptions.getStore(),
            luceneOptions.getIndex(), luceneOptions.getTermVector());
      field.setBoost(luceneOptions.getBoost());
      document.add(field);

   }

}