get the ws-reliablemessaging namespace to be used for encoding and decoding messages . concode_field_sep SequenceType sequence concode_elem_sep long messageNumber concode_elem_sep SourceSequence sourceSequence concode_elem_sep CloseSequenceType closeSequence concode_elem_sep Collection<SequenceAcknowledgement> acks concode_elem_sep boolean lastMessage concode_elem_sep String namespaceURI concode_elem_sep Collection<AckRequestedType> acksRequested concode_field_sep void setSequence concode_elem_sep void setSequence concode_elem_sep void exposeAs concode_elem_sep boolean isLastMessage concode_elem_sep void setAcks concode_elem_sep CloseSequenceType getCloseSequence concode_elem_sep long getMessageNumber concode_elem_sep SourceSequence getSourceSequence concode_elem_sep void setCloseSequence concode_elem_sep void setAcksRequested concode_elem_sep Collection<AckRequestedType> getAcksRequested concode_elem_sep Collection<SequenceAcknowledgement> getAcks concode_elem_sep SequenceType getSequence concode_elem_sep void addAck