java - Hector inserting only part of the primary key -

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i have query in legacy code want understand. cassandra table this:

 cqlsh:mykeyspace> desc table "logtable"  create table mykeyspace."logtable" (     key text,     key2 text,     column1 text,     column2 text,     column3 text,     column4 text,     value blob,     primary key ((key, key2), column1, column2, column3, column4) )

i'm not kidding, columns named that, each column can used in way. makes code difficult read. now, there's code in java don't understand: 

private static final stringserializer ss = stringserializer.get();  public void logprogressmetadata(string affiliationid, string datasetid, string jobid, progressmetadata metadata) {         composite rowkey = new composite();         rowkey.addcomponent("job_progress", ss);          composite column = new composite();         column.addcomponent(affiliationid, ss);         column.addcomponent(datasetid, ss);         column.addcomponent(jobid, ss);          mutator<composite> mutator = hfactory.createmutator(keyspace, compositeserializer.get());         mutator.addinsertion(rowkey, log_cf, hfactory.createcolumn(column, metadata.tojson(), compositeserializer.get(), ss));          mutator.execute();     }

my question code regarding rowkey: placed in "key" , "key2"? if try make query in cql specifying key , not key2, error. if query without restrictions (select * "logtable"), cannot find column containing "job_progress" example, have figure out code.

thanks, serban


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