DDS::DataTagQosPolicy Class Reference

Stores (name, value) pairs that can be used to determine access permissions. More...

#include <managed_infrastructure.h>

Static Public Member Functions
static System::String ^	get_datatag_qos_policy_name ()
	Stringified human-readable name for DDS::DataTagQosPolicy. More...

Public Attributes
TagSeq ^	tags
	Sequence of data tags. More...

Detailed Description

Stores (name, value) pairs that can be used to determine access permissions.

Entity:

DDS::DataReader DDS::DataWriter

Properties:

RxO = N/A;
Changeable = NO

Usage

The DATA_TAG QoS policy can be used to associate a set of tags in the form of (name, value) pairs with a DDS::DataReader or DDS::DataWriter. This is similar to the DDS::PropertyQosPolicy, except for the following differences:

• Data tags are always propagated. You cannot select whether or not a particular pair should be propagated.

• Data tags are not exposed to API functions, such as DDS::DataWriter::get_matched_subscription_data, that receive DDS::PublicationBuiltinTopicData or DDS::SubscriptionBuiltinTopicData as a parameter.

• Connext passes data tags to the Access Control Security Plugin, which may use them to decide whether to allow or deny the corresponding entities.

There are helper functions to facilitate working with data tags. See the DATA_TAG page.

Member Data Documentation

tags

TagSeq ^ DDS::DataTagQosPolicy::tags

Sequence of data tags.

[default] An empty list.

Referenced by get_datatag_qos_policy_name().