org.omg.dds.core.policy
Interface QosPolicy<UNMOD_SELF extends QosPolicy<UNMOD_SELF,MOD_SELF>,MOD_SELF extends UNMOD_SELF>

All Superinterfaces:

java.lang.Cloneable, DDSObject, java.io.Serializable, Value<UNMOD_SELF,MOD_SELF>

All Known Subinterfaces:

DataRepresentationQosPolicy, DeadlineQosPolicy, DestinationOrderQosPolicy, DurabilityQosPolicy, DurabilityServiceQosPolicy, EntityFactoryQosPolicy, GroupDataQosPolicy, HistoryQosPolicy, LatencyBudgetQosPolicy, LifespanQosPolicy, LivelinessQosPolicy, ModifiableDataRepresentationQosPolicy, ModifiableDeadlineQosPolicy, ModifiableDestinationOrderQosPolicy, ModifiableDurabilityQosPolicy, ModifiableDurabilityServiceQosPolicy, ModifiableEntityFactoryQosPolicy, ModifiableGroupDataQosPolicy, ModifiableHistoryQosPolicy, ModifiableLatencyBudgetQosPolicy, ModifiableLifespanQosPolicy, ModifiableLivelinessQosPolicy, ModifiableOwnershipQosPolicy, ModifiableOwnershipStrengthQosPolicy, ModifiablePartitionQosPolicy, ModifiablePresentationQosPolicy, ModifiableQosPolicy<UNMOD_SELF,MOD_SELF>, ModifiableReaderDataLifecycleQosPolicy, ModifiableReliabilityQosPolicy, ModifiableResourceLimitsQosPolicy, ModifiableTimeBasedFilterQosPolicy, ModifiableTopicDataQosPolicy, ModifiableTransportPriorityQosPolicy, ModifiableTypeConsistencyEnforcementQosPolicy, ModifiableUserDataQosPolicy, ModifiableWriterDataLifecycleQosPolicy, OwnershipQosPolicy, OwnershipStrengthQosPolicy, PartitionQosPolicy, PresentationQosPolicy, ReaderDataLifecycleQosPolicy, ReliabilityQosPolicy, ResourceLimitsQosPolicy, TimeBasedFilterQosPolicy, TopicDataQosPolicy, TransportPriorityQosPolicy, TypeConsistencyEnforcementQosPolicy, UserDataQosPolicy, WriterDataLifecycleQosPolicy

@Extensibility(value=EXTENSIBLE_EXTENSIBILITY)
@Nested
public interface QosPolicy<UNMOD_SELF extends QosPolicy<UNMOD_SELF,MOD_SELF>,MOD_SELF extends UNMOD_SELF>
extends Value<UNMOD_SELF,MOD_SELF>

This class is the abstract root for all the QoS policies. It provides the basic mechanism for an application to specify quality of service parameters. It has a name (getId().getPolicyName()) that is used to identify uniquely each QoS policy. All concrete QosPolicy classes derive from this root and include a value whose type depends on the concrete QoS policy. The type of a QosPolicy value may be atomic, such as an integer or float, or compound (a structure). Compound types are used whenever multiple parameters must be set coherently to define a consistent value for a QosPolicy. Each Entity can be configured with a collection of QosPolicy. However, any Entity cannot support any QosPolicy. For instance, a DomainParticipant supports different QosPolicy than a Topic or a Publisher. QosPolicy can be set when the Entity is created, or modified with the Entity.setQos(org.omg.dds.core.EntityQos) method. Each QosPolicy in collection list is treated independently from the others. This approach has the advantage of being very extensible. However, there may be cases where several policies are in conflict. Consistency checking is performed each time the policies are modified via the Entity.setQos(org.omg.dds.core.EntityQos)operation. When a policy is changed after being set to a given value, it is not required that the new value be applied instantaneously; the Service is allowed to apply it after a transition phase. In addition, some QosPolicy have ÒimmutableÓ semantics meaning that they can only be specified either at Entity creation time or else prior to calling the Entity.enable() operation on the Entity.

Nested Class Summary

static class

QosPolicy.Id

Method Summary

QosPolicy.Id

getId()

Methods inherited from interface org.omg.dds.core.Value

clone, equals, hashCode, modify

Methods inherited from interface org.omg.dds.core.DDSObject

getBootstrap

Method Detail

getId

QosPolicy.Id getId()