anchor.diff:  Note: AOTM, this only supports first level fields of the entity or document. But will support embeddable pojo
   and other kinds of nested querydsl path.
   
  +Sample operators
  +     equals is ==       e.g. field == 'value'
  +     not equals is !=   e.g. field != 'value'
  +     like is =*         e.g. startsWith
  +                                  field = 'value*'
  +                        e.g. endsWith
  +                                  field = '*value'
  +                        e.g. contains
  +                                  field = '*value*'
  +
   [source,java]
   ----
   
  
positive.code: 
  [source,java]
  ----
  String sortExpression = "sort(+employeeNumber)";
  
  DefaultSortParser sortParser = new DefaultSortParser();
  
negative.code: 
  [source,java]
  ----
  //limit(<offset>, <size>)
  String rqlPage = "limit(10, 5)";
  
  DefaultPageParser defaultPageParser = new DefaultPageParser();
  