public Builder ifEquals(byte[] family, byte[] qualifier, byte[] value) {
      return ifMatches(family, qualifier, CompareOperator.EQUAL, value);
    }
Check for equality
@param family    family to check
@param qualifier qualifier to check
@param value     the expected value
@return the CheckAndMutate object
hbase-client/src/main/java/org/apache/hadoop/hbase/client/CheckAndMutate.java