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--- dido:public:ra:xapend:xapend.f_qos:grp_data [2021/06/08 14:28]
char ↷ Page moved from dido:public:ra:xapend.qos:group_data to dido:public:ra:xapend:xapend.f_qos:group_data
+++ dido:public:ra:xapend:xapend.f_qos:grp_data [2021/10/04 13:40] (current)
50.19.247.197 ↷ Links adapted because of a move operation
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 ====== F.3 Group Data  ======
-[[dido:public:ra:xapend:xapend.f_qos| Return to Quality of Service ]]
+[[dido:public:ra:xapend:xapend.f_qos:start| Return to DDS Quality of Service ]]
+The ''GROUP_DATA'' [[dido:public:ra:xapend:xapend.a_glossary:q:qos|QoS]] allows the [[dido:public:ra:xapend:xapend.a_glossary:a:application|application]] to attach additional information to the created ''[[dido:public:ra:xapend:xapend.a_glossary:p:publisher|Publisher]]'' or ''[[dido:public:ra:xapend:xapend.a_glossary:s:subscriber|Subscriber]]''. The value of the ''GROUP_DATA'' is available to the application on the ''DataReader'' and ''DataWrite''r entities and is propagated by means of the built-in topics.
+This QoS can be used by an application combination with the ''DataReaderListener'' and ''DataWriterListener'' to implement matching policies similar to those of the ''[[dido:public:ra:xapend:xapend.a_glossary:p:partition|PARTITION QoS]]'' except the decision can be made based on an application-defined [[dido:public:ra:xapend:xapend.a_glossary:p:policy|policy]].
+Source: [[https://www.omg.org/spec/DDS/1.4/PDF | DDS 1.4 Spec]]

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