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PresentationQosPolicy Class |
The Presentation QoS policy controls how changes to instances by publishers are presented to data readers. It affects the relative ordering of these changes and
the scope of this ordering. Additionally, this policy introduces the concept of coherent change sets.
Inheritance HierarchyNamespace: OpenDDSharp.DDS
Assembly: OpenDDSharp (in OpenDDSharp.dll) Version: 0.5.0.0
SyntaxThe PresentationQosPolicy type exposes the following members.
Properties| Name | Description | |
|---|---|---|
 | AccessScope |
Specifies how the samples representing changes to data instances are presented to a subscribing application.
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| CoherentAccess |
Allow one or more changes to an instance be made available to an associated data reader as a single change. If a data reader does not receive
the entire set of coherent changes made by a publisher, then none of the changes are made available. The semantics of coherent changes are similar in nature
to those found in transactions provided by many relational databases. By default, CoherentAccess is .
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| OrderedAccess |
Controls whether preserve the order of changes. By default, OrderedAccess is .
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Methods| Name | Description | |
|---|---|---|
 | Equals | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
| GetHashCode | Serves as the default hash function. (Inherited from Object.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
Remarks
This policy controls the ordering and scope of samples made available to the subscriber, but the subscriber application must use the proper logic in reading samples
to guarantee the requested behavior.
See Also