tech.ydb.coordination.impl

Class CoordinationClientImpl

java.lang.Object

tech.ydb.coordination.impl.CoordinationClientImpl

All Implemented Interfaces:

CoordinationClient

public class CoordinationClientImpl
extends Object
implements CoordinationClient

Author:

Kirill Kurdyukov

Constructor Summary

Constructors

Constructor and Description
CoordinationClientImpl(CoordinationRpc grpcCoordinationRpc)

Method Summary

Modifier and Type	Method and Description
CompletableFuture<Status>	alterNode(String path, CoordinationNodeSettings coordinationNodeSettings) Modifies settings of a coordination node
CompletableFuture<Status>	createNode(String path, CoordinationNodeSettings coordinationNodeSettings) Creates a new coordination node.
CoordinationSession	createSession() Bidirectional stream used to establish a session with a coordination node
CompletableFuture<Status>	describeNode(String path, DescribeCoordinationNodeSettings describeCoordinationNodeSettings) Describes a coordination node
CompletableFuture<Status>	dropNode(String path, DropCoordinationNodeSettings dropCoordinationNodeSettings) Drops a coordination node
String	getDatabase() Database path Using for creating coordination node path

Methods inherited from class java.lang.Object

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

Methods inherited from interface tech.ydb.coordination.CoordinationClient

newClient

Constructor Detail

CoordinationClientImpl

public CoordinationClientImpl(CoordinationRpc grpcCoordinationRpc)

Method Detail

createSession

public CoordinationSession createSession()

Description copied from interface: CoordinationClient

Bidirectional stream used to establish a session with a coordination node

Relevant APIs for managing semaphores, distributed locking, creating or restoring a previously established session are described using nested messages in SessionRequest and SessionResponse. Session is established with a specific coordination node (previously created using CreateNode below) and semaphores are local to that coordination node.

Specified by:

createSession in interface CoordinationClient

Returns:

coordination node session

createNode

public CompletableFuture<Status> createNode(String path,
                                            CoordinationNodeSettings coordinationNodeSettings)

Description copied from interface: CoordinationClient

Creates a new coordination node.

Specified by:

createNode in interface CoordinationClient

Parameters:

path - full path to coordination node

coordinationNodeSettings - coordination node settings

Returns:

status of request

alterNode

public CompletableFuture<Status> alterNode(String path,
                                           CoordinationNodeSettings coordinationNodeSettings)

Description copied from interface: CoordinationClient

Modifies settings of a coordination node

Specified by:

alterNode in interface CoordinationClient

Parameters:

path - full path to coordination node

coordinationNodeSettings - coordination node settings

Returns:

status of request

dropNode

public CompletableFuture<Status> dropNode(String path,
                                          DropCoordinationNodeSettings dropCoordinationNodeSettings)

Description copied from interface: CoordinationClient

Drops a coordination node

Specified by:

dropNode in interface CoordinationClient

Parameters:

path - full path to coordination node

dropCoordinationNodeSettings - drop coordination node settings

Returns:

request of status

describeNode

public CompletableFuture<Status> describeNode(String path,
                                              DescribeCoordinationNodeSettings describeCoordinationNodeSettings)

Description copied from interface: CoordinationClient

Describes a coordination node

Specified by:

describeNode in interface CoordinationClient

Parameters:

path - full path to coordination node

describeCoordinationNodeSettings - describe coordination node settings

Returns:

request of status

getDatabase

public String getDatabase()

Description copied from interface: CoordinationClient

Database path Using for creating coordination node path

Specified by:

getDatabase in interface CoordinationClient

Returns:

path to database