Filter Evaluation

• Comparisons to a non mapped concept evaluate to False
• AND, OR, NOT evaluate as usual
• If entire filter evaluates to
  • False, the query is canceled and no data is returned.
  • True, the filter is omitted and the query run without it
• Parameters without values (not supplied via http-get) are removed from the filter - no matter if they are within an <or> or <and>. They dont evaluate to False nor True