code: private AndQueryBuilder getAndFilterBuilder(Expression logicalExp, EntityMetadata m)
      {
          AndExpression andExp = (AndExpression) logicalExp;
          Expression leftExpression = andExp.getLeftExpression();
          Expression rightExpression = andExp.getRightExpression();
  
          return new AndQueryBuilder(populateFilterBuilder(leftExpression, m), populateFilterBuilder(rightExpression, m));
      }
docs: Gets the and filter builder.
  
  @param logicalExp
  the logical exp
  @param m
  the m
  @param entity
  the entity
  @return the and filter builder