DDS Tutorial -- Part II Hands On - OMG
DDS Tutorial -- Part II Hands On - OMG
DDS Tutorial -- Part II Hands On - OMG
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<strong>DDS</strong> Service Model: Object ModelTopicTopicDataWriterOfferedQoSDataReaderRequestedQoSPublisherDomain<strong>Part</strong>icipantSubscriberDomain<strong>Part</strong>icipant© 2009 Real-Time Innovations, Inc.Global Data Space• Domain<strong>Part</strong>icipant – Allows application to join a <strong>DDS</strong> Domain (Global Data Space)• Topic – A string that addresses a group of objects in the Global Data Space– Each Object is identified by a Key (some fields within the object data)• Publisher, Subscriber – Pools resources for DataWriters and DataReaders• DataWriter – Declares intent to publish a Topic and provides type-safe operations to write/senddata• DataReader – Declares intent to subscribe to a Topic and provides type-safe operations toread/receive data
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