Thanks,
I've resolve it with the same way.
I create a list object hold every attribute in the custom object, may be
more efficient, but i don't think it looks beautiful.........
On Sun, Dec 27, 2009 at 9:00 AM, Bryan McCormick <br...@mccormi.com> wrote:
> I actually just ran into the same problem. Took an evening of poking around
> to see what was going on. What appears to be going on is that the
> Iterable<Text> values seemed to be reusing the Text object being exposed in
> the for loop and just changing the content of the Text.
>
> Try doing this instead:
>
> for(Text val:values){
> activeList.add(new Text(val.toString));
> context.write(key, activeList.get(0));
> }
>
> I was using a custom object that implemented Writable and instead of
> getting a list of objects, I got n copies of the same object in my list. By
> copying the object out of the values Iterable into a new object that I then
> inserted into my list everything worked properly.
>
> Hope this helps,
>
> Bryan
>
>
>
>
> On Dec 23, 2009, at 3:01 AM, oo famcr wrote:
>
> Hello everyone
>> I want to save the value to a LinkedList, but THE ***activeList.get(0)***
>> have been changed every time.
>> I think it should be the first element, but it's not
>>
>> Thanks
>> Song
>>
>> ==========Part of WordCount===========
>> public static class IntSumReducer
>> extends Reducer<Text,Text,Text,Text> {
>> private List<Text> activeList = new LinkedList<Text>();
>> public void reduce(Text key, Iterable<Text> values,
>> Context context
>> ) throws IOException, InterruptedException {
>> for (Text val : values) {
>> activeList.add(val);
>> context.write(key, new Text( activeList.get(0).toString() ));
>> }
>> }
>>
>
>
