Package org.apache.ignite.events
Class JobEvent
- java.lang.Object
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- org.apache.ignite.events.EventAdapter
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- org.apache.ignite.events.JobEvent
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- All Implemented Interfaces:
Serializable
,Comparable<Event>
,Event
public class JobEvent extends EventAdapter
Grid job event.Grid events are used for notification about what happens within the grid. Note that by design Ignite keeps all events generated on the local node locally and it provides APIs for performing a distributed queries across multiple nodes:
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IgniteEvents.remoteQuery(org.apache.ignite.lang.IgnitePredicate, long, int...)
- asynchronously querying events occurred on the nodes specified, including remote nodes. -
IgniteEvents.localQuery(org.apache.ignite.lang.IgnitePredicate, int...)
- querying only local events stored on this local node. -
IgniteEvents.localListen(org.apache.ignite.lang.IgnitePredicate, int...)
- listening to local grid events (events from remote nodes not included).
IgniteEvents.waitForLocal(org.apache.ignite.lang.IgnitePredicate, int...)
.Events and Performance
Note that by default all events in Ignite are enabled and therefore generated and stored by whatever event storage SPI is configured. Ignite can and often does generate thousands events per seconds under the load and therefore it creates a significant additional load on the system. If these events are not needed by the application this load is unnecessary and leads to significant performance degradation.It is highly recommended to enable only those events that your application logic requires by using
IgniteConfiguration.getIncludeEventTypes()
method in Ignite configuration. Note that certain events are required for Ignite's internal operations and such events will still be generated but not stored by event storage SPI if they are disabled in Ignite configuration.- See Also:
EventType.EVT_JOB_CANCELLED
,EventType.EVT_JOB_FAILED
,EventType.EVT_JOB_FAILED_OVER
,EventType.EVT_JOB_FINISHED
,EventType.EVT_JOB_MAPPED
,EventType.EVT_JOB_QUEUED
,EventType.EVT_JOB_REJECTED
,EventType.EVT_JOB_RESULTED
,EventType.EVT_JOB_STARTED
,EventType.EVT_JOB_TIMEDOUT
,EventType.EVTS_JOB_EXECUTION
, Serialized Form
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Constructor Summary
Constructors Constructor Description JobEvent()
No-arg constructor.JobEvent(ClusterNode node, String msg, int type)
Creates job event with given parameters.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description IgniteUuid
jobId()
Gets job ID.void
jobId(IgniteUuid jobId)
Sets job ID.@Nullable ComputeJobResultPolicy
resultPolicy()
Gets job result policy.void
resultPolicy(@Nullable ComputeJobResultPolicy resPlc)
Sets job result policy.String
shortDisplay()
Gets a shortened version oftoString()
result.String
taskClassName()
Gets name of task class that triggered this event.void
taskClassName(String taskClsName)
Sets name of the task class that triggered this event.String
taskName()
Gets name of the task that triggered the event.void
taskName(String taskName)
Sets name of the task that triggered this event.ClusterNode
taskNode()
Get node where parent task of the job has originated.void
taskNode(ClusterNode taskNode)
Sets node where parent task of the job has originated.IgniteUuid
taskSessionId()
Gets task session ID of the task that triggered this event.void
taskSessionId(IgniteUuid sesId)
Sets task session ID of the task that triggered this event.UUID
taskSubjectId()
Gets task subject ID.void
taskSubjectId(UUID taskSubjId)
Sets task subject ID.String
toString()
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Constructor Detail
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JobEvent
public JobEvent()
No-arg constructor.
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JobEvent
public JobEvent(ClusterNode node, String msg, int type)
Creates job event with given parameters.- Parameters:
node
- Node.msg
- Optional message.type
- Event type.
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Method Detail
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shortDisplay
public String shortDisplay()
Gets a shortened version oftoString()
result. Suitable for humans to read.- Specified by:
shortDisplay
in interfaceEvent
- Overrides:
shortDisplay
in classEventAdapter
- Returns:
- Shortened version of
toString()
result.
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taskName
public String taskName()
Gets name of the task that triggered the event.- Returns:
- Name of the task that triggered the event.
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taskClassName
public String taskClassName()
Gets name of task class that triggered this event.- Returns:
- Name of task class that triggered the event.
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taskSessionId
public IgniteUuid taskSessionId()
Gets task session ID of the task that triggered this event.- Returns:
- Task session ID of the task that triggered the event.
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jobId
public IgniteUuid jobId()
Gets job ID.- Returns:
- Job ID.
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taskName
public void taskName(String taskName)
Sets name of the task that triggered this event.- Parameters:
taskName
- Task name to set.
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taskClassName
public void taskClassName(String taskClsName)
Sets name of the task class that triggered this event.- Parameters:
taskClsName
- Task class name to set.
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taskSessionId
public void taskSessionId(IgniteUuid sesId)
Sets task session ID of the task that triggered this event.- Parameters:
sesId
- Task session ID to set.
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jobId
public void jobId(IgniteUuid jobId)
Sets job ID.- Parameters:
jobId
- Job ID to set.
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taskNode
public ClusterNode taskNode()
Get node where parent task of the job has originated.- Returns:
- Node where parent task of the job has originated.
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taskNode
public void taskNode(ClusterNode taskNode)
Sets node where parent task of the job has originated.- Parameters:
taskNode
- Node where parent task of the job has originated.
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taskSubjectId
public UUID taskSubjectId()
Gets task subject ID.- Returns:
- Task subject ID.
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taskSubjectId
public void taskSubjectId(UUID taskSubjId)
Sets task subject ID.- Parameters:
taskSubjId
- Task subject ID.
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resultPolicy
@Nullable public @Nullable ComputeJobResultPolicy resultPolicy()
Gets job result policy. Not null forEventType.EVT_JOB_RESULTED
andEventType.EVT_JOB_FAILED_OVER
event types.- Returns:
- Result policy.
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resultPolicy
public void resultPolicy(@Nullable @Nullable ComputeJobResultPolicy resPlc)
Sets job result policy.- Parameters:
resPlc
- New result policy.
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toString
public String toString()
- Overrides:
toString
in classEventAdapter
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