returns whether there are any messages in the response . concode_field_sep long firstAvailSeqNum concode_elem_sep long requestSeqNum concode_elem_sep long fetchSize concode_elem_sep long error concode_elem_sep List<TankMessage> messages concode_elem_sep String topic concode_elem_sep boolean hasError concode_elem_sep long partition concode_elem_sep long highWaterMark concode_field_sep void setFirstAvailSeqNum concode_elem_sep long getNextSeqNum concode_elem_sep void setFetchSize concode_elem_sep long getFirstAvailSeqNum concode_elem_sep List<TankMessage> getMessages concode_elem_sep String getTopic concode_elem_sep void addMessage concode_elem_sep long getFetchSize concode_elem_sep long getError concode_elem_sep long getHighWaterMark concode_elem_sep long getPartition concode_elem_sep void setHighWaterMark concode_elem_sep long getRequestSeqNum concode_elem_sep boolean hasError concode_elem_sep void setRequestSeqNum
boolean function ( ) { return ( messages . size ( ) != 0 ) ; }