question: not-null value . concode_field_sep int peerId concode_elem_sep int latestMsgType concode_elem_sep String sessionKey concode_elem_sep String latestMsgData concode_elem_sep int created concode_elem_sep Long id concode_elem_sep int peerType concode_elem_sep int latestMsgId concode_elem_sep int talkId concode_elem_sep int updated concode_field_sep void setTalkId concode_elem_sep void setLatestMsgId concode_elem_sep int getPeerId concode_elem_sep int getPeerType concode_elem_sep int getCreated concode_elem_sep Long getId concode_elem_sep void setCreated concode_elem_sep void setPeerType concode_elem_sep void setLatestMsgType concode_elem_sep int getLatestMsgId concode_elem_sep int getTalkId concode_elem_sep String getLatestMsgData concode_elem_sep int getUpdated concode_elem_sep void setLatestMsgData concode_elem_sep void setPeerId concode_elem_sep String buildSessionKey concode_elem_sep void setId concode_elem_sep void setSessionKey concode_elem_sep int getLatestMsgType concode_elem_sep void setUpdated
target: String function ( ) { return sessionKey ; }