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 <[email protected]>: > every kind of suggestions will be appreciated > > > 2014-07-16 13:32 GMT+02:00 Carmen Manzulli <[email protected]>: > > 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 < >> [email protected]>: >> >> 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 < >>> [email protected]> 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? >>>> >>> >>> >> >
