public static boolean matchingColumnFamilyAndQualifierPrefix(final Cell left, final byte[] fam,
    final byte[] qual) {
    return matchingFamily(left, fam) && PrivateCellUtil.qualifierStartsWith(left, qual);
  }
Returns True if matching column family and the qualifier starts with <code>qual</code>
hbase-common/src/main/java/org/apache/hadoop/hbase/CellUtil.java