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22.8 Creating Persistence Groups Table 22.8 Persistence Group Tags Tag <content_filter> <propagate_dispose> <single_publisher> <single_subscriber> <use_durability_ service> Content filter topic expression. A persistence group can subscribe to a specific set of data based on the value of this expression. A filter expression is similar to the WHERE clause in SQL. For more information on the syntax, please see the online documentation (from the Modules page, select DDS API Reference, Queries and Filters Syntax. Default: no expression) A DDS_Boolean (see Table 22.1) that controls whether or not the persistence service propagates dispose messages from DataWriters to DataReaders. Default: 1 A DDS_Boolean (see Table 22.1) that controls whether or not the persistence service propagates unregister messages from DataWriters to DataReaders. Default: 0 A DDS_Boolean (see Table 22.1) that indicates if the persistence service should create one Publisher per persistence group or one Publisher per PRSTDataWriter inside the persistence group. See Section 22.8.3 Default: 1 A DDS_Boolean (see Table 22.1) that indicates if the persistence service should create one Subscriber per persistence group or one Subscriber per PRSTDataReader in the persistence group. See Section 22.8.3 Default: 1 A DDS_Boolean (see Table 22.1) that indicates if the HISTORY and RESOURCE_LIMITS QoS policy of the PRSTDataWriters and PRSTDataReaders should be configured based on the DURABILITY SERVICE value of the discovered DataWriters. See Section 22.8.2 Default: 1 Number of Tags Allowed 0 or 1 0 or 1 0 or 1 0 or 1 0 or 1 0 or 1 22-17 22. Configuring RTI Persistence Service <propagate_unregister> Description
