code: public Analyzer getPropertyAnalyzer(String fieldName)
     {
        if (analyzers.containsKey(fieldName))
        {
           return analyzers.get(fieldName);
        }
        return null;
     }
docs: Returns the analyzer configured for the property with this fieldName (the
  string representation ,JCR-style name, of the given
  <code>InternalQName</code> prefixed with
  <code>FieldNames.FULLTEXT_PREFIX</code>)), and <code>null</code> if none
  is configured, or the configured analyzer cannot be found. If
  <code>null</code> is returned, the default Analyzer is used.
  
  @param fieldName
  the string representation ,JCR-style name, of the given
  <code>InternalQName</code> prefixed with
  <code>FieldNames.FULLTEXT_PREFIX</code>))
  @return the <code>analyzer</code> to use for indexing this property