====== ENTITY_FACTORY QoS Parameter ======
[[ddsf:public:guidebook:06_append:02_quality_of_service:start|return to the Quality of Service (QoS) Parameters ]]

The ENTITY_FACTORY policy controls the behavior of the ''Entity'' as a factory for other entities.

This policy concerns only [[ddsf:public:guidebook:06_append:glossary:d:domain_participant|Domain Participant]] (as factory for ''Publisher'', ''Subscriber'', and ''[[ddsf:public:guidebook:06_append:glossary:t:topic|Topic]]''), [[ddsf:public:guidebook:06_append:glossary:p:publisher|Publisher]] (as factory for ''DataWriter''), and [[ddsf:public:guidebook:06_append:glossary:s:subscriber|Subscriber]] (as factory for ''DataReader'').

This policy is mutable. A change in the policy affects only the entities created after the change; not the previously created entities.

The setting of ''autoenable_created_entities'' to TRUE indicates that the factory ''create_<entity>'' operation will automatically invoke the ''enable'' operation each time a new ''[[ddsf:public:guidebook:06_append:glossary:e:entity|Entity]]'' is created. Therefore, the ''Entity'' returned by create_<entity> will already be ''enabled''. A setting of FALSE indicates that the ''Entity'' will not be automatically enabled. The application will need to ''enable'' it explicitly by means of the ''enable'' operation (see 2.2.2.1.1.7).

The default setting of ''autoenable_created_entities = TRUE'' means that, by default, it is not necessary to explicitly call ''enable'' on newly created entities.

Source: [[https://www.omg.org/spec/DDS/1.4/PDF | DDS 1.4 Spec]]

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