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From Carmen Manzulli <carmenmanzu...@gmail.com>
Subject Re: string parameter from command line
Date Thu, 17 Jul 2014 08:24:32 GMT
ok, sorry it was a dummy error in my code...your suggestion fixs my
problem!!!thanks a lot!!! :D


2014-07-16 16:49 GMT+02:00 Carmen Manzulli <carmenmanzulli@gmail.com>:

> every kind of suggestions will be appreciated
>
>
> 2014-07-16 13:32 GMT+02:00 Carmen Manzulli <carmenmanzulli@gmail.com>:
>
> yes...this i would obtain...but there is a unknown error (for me) in the
>> code:
>>
>> public final StrConfOption SOURCE_ID = new
>> StrConfOption("Selection.sourceId",null,"select source id");
>>       public final Text subject=new
>> Text(getConf().get("Selection.sourceId"));
>>
>> and from command line: hadoop jar.....-vip....-ca
>> Selection.sourceId="string"
>>
>> i would use <subject> to compare vertex ID values ( defined as Text in my
>> inputFormat)
>>
>>
>> 2014-07-16 12:15 GMT+02:00 Sundara Raghavan Sankaran <
>> sundar@crayondata.com>:
>>
>> I'm not sure of the use case here, but I'll give an example which might
>>> help you.
>>>
>>> The parameter is given in the command line with -ca (as you said). For
>>> example
>>> hadoop jar sample.jar -vip .... *-ca sample.option1=value1 -ca
>>> sample.option2=value2*
>>>
>>> You can then get this value from the configuration in your computation
>>> class
>>>
>>> *String option1 = getConf().get("sample.option1"); // will get "value1"*
>>>
>>> *String option2 = getConf().get("sample.option2"); // will get "value2"*
>>>
>>>
>>>
>>> On Wed, Jul 16, 2014 at 2:49 PM, Carmen Manzulli <
>>> carmenmanzulli@gmail.com> wrote:
>>>
>>>> Hi experts,
>>>> I'm trying to insert a string parameter from the command line with
>>>> "-ca"...so in my Computation code i've created a StrConfOption...when
>>>> running i get NPE because it seems to set the value of this string to
>>>> null...
>>>>
>>>> how can i fix this problem?
>>>>
>>>
>>>
>>
>

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