sets the read preference for this command . see the documentation for readpreference for more information . concode_field_sep DBObject _query concode_elem_sep int _limit concode_elem_sep Map<String,Object> _scope concode_elem_sep OutputType _outputType concode_elem_sep long _maxTimeMS concode_elem_sep DBObject _sort concode_elem_sep String _outputDB concode_elem_sep String _map concode_elem_sep String _outputTarget concode_elem_sep DBObject _extra concode_elem_sep String _reduce concode_elem_sep ReadPreference _readPref concode_elem_sep Boolean _verbose concode_elem_sep String _finalize concode_elem_sep String _input concode_field_sep void setOutputDB concode_elem_sep void setMaxTime concode_elem_sep String getReduce concode_elem_sep OutputType getOutputType concode_elem_sep int getLimit concode_elem_sep void addExtraOption concode_elem_sep long getMaxTime concode_elem_sep ReadPreference getReadPreference concode_elem_sep Boolean isVerbose concode_elem_sep DBObject getExtraOptions concode_elem_sep String getFinalize concode_elem_sep String getInput concode_elem_sep void setVerbose concode_elem_sep String getMap concode_elem_sep void setSort concode_elem_sep DBObject getSort concode_elem_sep void setLimit concode_elem_sep void setFinalize concode_elem_sep String toString concode_elem_sep DBObject toDBObject concode_elem_sep void setScope concode_elem_sep DBObject getQuery concode_elem_sep String getOutputTarget concode_elem_sep Map<String,Object> getScope
void function ( ReadPreference arg0 ) { _readPref = arg0 ; }