org.apache.shardingsphere.infra.instance

类 InstanceContext

java.lang.Object

org.apache.shardingsphere.infra.instance.InstanceContext

public final class InstanceContext
extends Object

Instance context.

构造器概要

构造器

构造器和说明
InstanceContext(ComputeNodeInstance instance, WorkerIdGenerator workerIdGenerator, ModeConfiguration modeConfiguration, LockContext lockContext, EventBusContext eventBusContext)

方法概要

限定符和类型	方法和说明
void	addComputeNodeInstance(ComputeNodeInstance instance) Add compute node instance.
void	deleteComputeNodeInstance(ComputeNodeInstance instance) Delete compute node instance.
long	generateWorkerId(Properties props) Generate worker id.
List<InstanceMetaData>	getAllClusterInstances(InstanceType instanceType, Collection<String> labels) Get compute node instances by instance type and labels.
Optional<ComputeNodeInstance>	getComputeNodeInstanceById(String instanceId) Get compute node instance by instance id.
long	getWorkerId() Get worker id.
boolean	isCluster() Is cluster instance or not.
void	updateInstanceStatus(String instanceId, Collection<String> status) Update instance status.
void	updateLabel(String instanceId, Collection<String> labels) Update instance label.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

InstanceContext

public InstanceContext(ComputeNodeInstance instance,
                       WorkerIdGenerator workerIdGenerator,
                       ModeConfiguration modeConfiguration,
                       LockContext lockContext,
                       EventBusContext eventBusContext)

方法详细资料

updateInstanceStatus

public void updateInstanceStatus(String instanceId,
                                 Collection<String> status)

Update instance status.

参数:

instanceId - instance id

status - status

updateLabel

public void updateLabel(String instanceId,
                        Collection<String> labels)

Update instance label.

参数:

instanceId - instance id

labels - collection of label

getWorkerId

public long getWorkerId()

Get worker id.

返回:

worker id

generateWorkerId

public long generateWorkerId(Properties props)

Generate worker id.

参数:

props - properties

返回:

worker id

addComputeNodeInstance

public void addComputeNodeInstance(ComputeNodeInstance instance)

Add compute node instance.

参数:

instance - compute node instance

deleteComputeNodeInstance

public void deleteComputeNodeInstance(ComputeNodeInstance instance)

Delete compute node instance.

参数:

instance - compute node instance

getAllClusterInstances

public List<InstanceMetaData> getAllClusterInstances(InstanceType instanceType,
                                                     Collection<String> labels)

Get compute node instances by instance type and labels.

参数:

instanceType - instance type

labels - collection of contained label

返回:

compute node instances

getComputeNodeInstanceById

public Optional<ComputeNodeInstance> getComputeNodeInstanceById(String instanceId)

Get compute node instance by instance id.

参数:

instanceId - instance id

返回:

compute node instance

isCluster

public boolean isCluster()

Is cluster instance or not.

返回:

true if is cluster, else false