public Filter parseFilterString(String filterString) throws CharacterCodingException {
    return parseFilterString(Bytes.toBytes(filterString));
  }
Parses the filterString and constructs a filter using it
<p>
@param filterString filter string given by the user
@return filter object we constructed
hbase-client/src/main/java/org/apache/hadoop/hbase/filter/ParseFilter.java