dds::topic::qos::TopicQos Class Reference

<<value-type>> Container of the QoS policies that a dds::topic::Topic supports More...

#include <dds/topic/qos/TopicQos.hpp>

Public Member Functions
	TopicQos ()
	Creates a TopicQos with the default value for each policy.
template<typename POLICY >
const POLICY &	policy () const
	Gets a QoS policy by const reference.
template<typename POLICY >
POLICY &	policy ()
	Gets a QoS policy by reference.
template<typename Policy >
TopicQos &	policy (const Policy &p)
	Sets a policy.
template<typename Policy >
TopicQos &	operator<< (const Policy &p)
	Sets a policy.
template<typename Policy >
const TopicQos &	operator>> (Policy &p) const
	Copies the values of a policy.

Detailed Description

<<value-type>> Container of the QoS policies that a dds::topic::Topic supports

TopicQos Policies

A TopicQos contains the following policies:

• dds::core::policy::TopicData,
• dds::core::policy::Durability,
• dds::core::policy::DurabilityService,
• dds::core::policy::Deadline,
• dds::core::policy::LatencyBudget,
• dds::core::policy::Liveliness,
• dds::core::policy::Reliability,
• dds::core::policy::DestinationOrder,
• dds::core::policy::History,
• dds::core::policy::ResourceLimits,
• dds::core::policy::TransportPriority,
• dds::core::policy::Lifespan,
• dds::core::policy::Ownership

To get or set policies use the policy() getters and setters or operator << (see examples).

You must set certain members in a consistent manner:

length of dds::topic::qos::TopicQos::topic_data .value <= dds::domain::qos::DomainParticipantQos::resource_limits .topic_data_max_length

If any of the above are not true, dds::topic::Topic::qos(const dds::topic::qos::TopicQos&), dds::topic::Topic::qos() and dds::domain::DomainParticipant::default_topic_qos will fail with dds::core::InconsistentPolicyError and the dds::topic::Topic constructors will fail with dds::core::Error

Entity:

dds::topic::Topic

See Also

QoS Policies allowed ranges within each Qos.

Qos Use Cases

Constructor & Destructor Documentation

dds::topic::qos::TopicQos::TopicQos ( )

inline

Creates a TopicQos with the default value for each policy.

Member Function Documentation

template<typename POLICY >

const POLICY& dds::topic::qos::TopicQos::policy

(

)

const

Gets a QoS policy by const reference.

Template Parameters

Policy

One of the TopicQos Policies

See Also

Setting Qos Values

template<typename POLICY >

POLICY& dds::topic::qos::TopicQos::policy

(

)

Gets a QoS policy by reference.

Template Parameters

Policy

One of the TopicQos Policies

See Also

Setting Qos Values

template<typename Policy >

TopicQos& dds::topic::qos::TopicQos::policy ( const Policy &  p )

inline

Sets a policy.

See Also

policy()

Setting Qos Values

template<typename Policy >

TopicQos& dds::topic::qos::TopicQos::operator<< ( const Policy &  p )

inline

Sets a policy.

See Also

policy()

Setting Qos Values

template<typename Policy >

const TopicQos& dds::topic::qos::TopicQos::operator>> ( Policy &  p ) const

inline

Copies the values of a policy.

Parameters

p	The destination where to copy the current value of the Policy

See Also

policy()

Setting Qos Values