A sample has been lost (never received). More...

Inheritance diagram for org.omg.dds.core.status.SampleLostStatus:

Collaboration diagram for org.omg.dds.core.status.SampleLostStatus:

Public Member Functions
ServiceEnvironment	getEnvironment ()

abstract int	getTotalCount ()
	Total cumulative count of all samples lost across all instances of data published under the org.omg.dds.topic.Topic. More...

abstract int	getTotalCountChange ()
	The incremental number of samples lost since the last time the listener was called or the status was read. More...

Static Public Member Functions
static Set< Class<? extends Status > >	allStatuses (ServiceEnvironment env)

static Set< Class<? extends Status > >	noStatuses (ServiceEnvironment env)

Detailed Description

A sample has been lost (never received).

The status is independent of the differences in instances, in other words, it includes all samples lost across all instances of data published under the Topic.

The following events can lead to a sample lost status:

When the Presentation QoS is used with coherentAccess set to true and ResourceLimits Qos is active a sample lost can occur when all resources are consumed by incomplete transactions. In order to prevent deadlocks the the current transaction is dropped which causes a SampleLost event.
When the DestinationOrder QoS is set to BY_SOURCE_TIMESTAMP It can happen that older data is inserted after newer data is already taken by the DataReader. In this case the older data is not inserted into the DataReader and a SampleLost is reported.
When the networking service detects a gap between sequence numbers of incoming data it will report a SampleLost event

See also: org.omg.dds.core.event.SampleLostEvent

Definition at line 46 of file SampleLostStatus.java.

Member Function Documentation

◆ allStatuses()

static Set<Class<? extends Status> > org.omg.dds.core.status.Status.allStatuses ( ServiceEnvironment env )

staticinherited

Parameters

env	Identifies the Service instance to which the object will belong.

Definition at line 59 of file Status.java.

◆ getEnvironment()

ServiceEnvironment org.omg.dds.core.DDSObject.getEnvironment ( )

inherited

Returns: the org.omg.dds.core.ServiceEnvironment object that directly or indirectly was used to create this object.

◆ getTotalCount()

abstract int org.omg.dds.core.status.SampleLostStatus.getTotalCount ( )

abstract

Total cumulative count of all samples lost across all instances of data published under the org.omg.dds.topic.Topic.

◆ getTotalCountChange()

abstract int org.omg.dds.core.status.SampleLostStatus.getTotalCountChange ( )

abstract

The incremental number of samples lost since the last time the listener was called or the status was read.

◆ noStatuses()

static Set<Class<? extends Status> > org.omg.dds.core.status.Status.noStatuses ( ServiceEnvironment env )

staticinherited

Parameters

env	Identifies the Service instance to which the object will belong.

Definition at line 70 of file Status.java.

The documentation for this class was generated from the following file:

java5/common/java/code/org/omg/dds/core/status/SampleLostStatus.java

Public Member Functions