public boolean hasHigherPriority(ByteBuffer a, ByteBuffer b) {
    if ((operatorPrecedenceHashMap.get(a) - operatorPrecedenceHashMap.get(b)) < 0) {
      return true;
    }
    return false;
  }
Returns which operator has higher precedence
<p>
If a has higher precedence than b, it returns true If they have the same precedence, it returns
false
hbase-client/src/main/java/org/apache/hadoop/hbase/filter/ParseFilter.java