CoordinationClient (Coordination node client implementation 2.3.12 API)

```
public interface CoordinationClient
```
Author:

Kirill Kurdyukov, Alexandr Gorshein

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method and Description
`CompletableFuture<tech.ydb.core.Status>`	`alterNode(String path, CoordinationNodeSettings settings)` Modifies settings of a coordination node
`default CompletableFuture<tech.ydb.core.Status>`	`createNode(String path)` Creates a new coordination node.
`CompletableFuture<tech.ydb.core.Status>`	`createNode(String path, CoordinationNodeSettings settings)` Creates a new coordination node.
`default CoordinationSession`	`createSession(String path)` Creates a new coordination session with default settings.
`CoordinationSession`	`createSession(String path, CoordinationSessionSettings settings)` Creates a new coordination session.
`default CompletableFuture<tech.ydb.core.Result<NodeConfig>>`	`describeNode(String path)` Describes a coordination node
`CompletableFuture<tech.ydb.core.Result<NodeConfig>>`	`describeNode(String path, DescribeCoordinationNodeSettings settings)` Describes a coordination node
`default CompletableFuture<tech.ydb.core.Status>`	`dropNode(String path)` Drops a coordination node
`CompletableFuture<tech.ydb.core.Status>`	`dropNode(String path, DropCoordinationNodeSettings settings)` Drops a coordination node
`String`	`getDatabase()` Database path Used for creating coordination node path
`static CoordinationClient`	`newClient(tech.ydb.core.grpc.GrpcTransport transport)`

- Method Detail
  - newClient
```
static CoordinationClient newClient(@WillNotClose
                                    tech.ydb.core.grpc.GrpcTransport transport)
```
  - getDatabase
```
String getDatabase()
```
    Database path Used for creating coordination node path
    
    Returns:
    
    path to database
  - createSession
```
CoordinationSession createSession(String path,
                                  CoordinationSessionSettings settings)
```
    Creates a new coordination session. The coordination session establishes bidirectional grpc stream with a specific coordination node and uses this stream for exchanging messages with the coordination service.
    
    Parameters:
    
    path - full path to coordination node
    
    settings - coordination session settings
    
    Returns:
    
    new instance of coordination session
  - createNode
```
CompletableFuture<tech.ydb.core.Status> createNode(String path,
                                                   CoordinationNodeSettings settings)
```
    Creates a new coordination node.
    
    Parameters:
    
    path - full path to coordination node
    
    settings - coordination node settings
    
    Returns:
    
    future with status of operation
  - alterNode
```
CompletableFuture<tech.ydb.core.Status> alterNode(String path,
                                                  CoordinationNodeSettings settings)
```
    Modifies settings of a coordination node
    
    Parameters:
    
    path - full path to coordination node
    
    settings - coordination node settings
    
    Returns:
    
    future with status of operation
  - dropNode
```
CompletableFuture<tech.ydb.core.Status> dropNode(String path,
                                                 DropCoordinationNodeSettings settings)
```
    Drops a coordination node
    
    Parameters:
    
    path - full path to coordination node
    
    settings - drop coordination node settings
    
    Returns:
    
    future with status of operation
  - describeNode
```
CompletableFuture<tech.ydb.core.Result<NodeConfig>> describeNode(String path,
                                                                 DescribeCoordinationNodeSettings settings)
```
    Describes a coordination node
    
    Parameters:
    
    path - full path to coordination node
    
    settings - describe coordination node settings
    
    Returns:
    
    future with node configuration
  - createSession
```
default CoordinationSession createSession(String path)
```
    Creates a new coordination session with default settings. The coordination session establishes bidirectional grpc stream with a specific coordination node and uses this stream for exchanging messages with the coordination service.
    
    Parameters:
    
    path - full path to coordination node
    
    Returns:
    
    new instance of coordination session
  - createNode
```
default CompletableFuture<tech.ydb.core.Status> createNode(String path)
```
    Creates a new coordination node.
    
    Parameters:
    
    path - full path to coordination node
    
    Returns:
    
    future with status of operation
  - dropNode
```
default CompletableFuture<tech.ydb.core.Status> dropNode(String path)
```
    Drops a coordination node
    
    Parameters:
    
    path - full path to coordination node
    
    Returns:
    
    future with status of operation
  - describeNode
```
default CompletableFuture<tech.ydb.core.Result<NodeConfig>> describeNode(String path)
```
    Describes a coordination node
    
    Parameters:
    
    path - full path to coordination node
    
    Returns:
    
    future with result of operation

Interface CoordinationClient

Method Summary

Method Detail

newClient

getDatabase

createSession

createNode

alterNode

dropNode

describeNode

createSession

createNode

dropNode

describeNode