Map output mapreduce to Hive table

[#1]

Hi. I have a mapReduce that is writing a sequence file. These sequence object is custom object developed by me "com.masfworld.MyClass". So, I´m trying to map the output of my mapreduce to a hive table such as:

CREATE EXTERNAL TABLE test_seq(id string)STORED AS SEQUENCEFILE
LOCATION '/pathOutputMapReduce'
ADD JAR 'MyComponent.jar' => This jar contains "com.masfworld.MyClass"

Then, when I try to do a select it returns an error:

SELECT * from test_seq limit 2;

Failed with exception java.io.IOException:java.lang.ClassCastException: com.masfworld.MyClass cannot be cast to org.apache.hadoop.io.BinaryComparable

Can someone help me? Thanks!!!

[#2]

verify that whether "MyClass" is the implementing of WritableComparable or any other classes those supports WritableComparable. If not, make MyClass implementing it and try again.

@InterfaceAudience.Public
@InterfaceStability.Stable
public abstract class BinaryComparable
extends Object
implements Comparable<BinaryComparable>

Interface supported by WritableComparable types supporting ordering/permutation by a representative set of bytes.

,

verify the super class of myclass and confirm that whether it is extended from any WritableComparable or any other class that support WritableComparable like Text.

[#3]

Yes, my class implements WritableComparable but it doesn't work