InternalTestCluster.RestartCallback (framework 6.8.15 API)

java.lang.Object
- org.elasticsearch.test.InternalTestCluster.RestartCallback

Enclosing class:

InternalTestCluster
```
public static class InternalTestCluster.RestartCallback
extends java.lang.Object
```
An abstract class that is called during InternalTestCluster.rollingRestart(InternalTestCluster.RestartCallback) and / or InternalTestCluster.fullRestart(InternalTestCluster.RestartCallback) to execute actions at certain stages of the restart.

Constructor Summary

Constructors
Constructor Description

RestartCallback()

Method Summary

Modifier and Type	Method	Description
`boolean`	`clearData(java.lang.String nodeName)`	If this returns `true` all data for the node with the given node name will be cleared including gateways and all index data.
`void`	`doAfterNodes(int n, Client client)`	Executed for each node before the `n + 1` node is restarted.
`Settings`	`onNodeStopped(java.lang.String nodeName)`	Executed once the give node name has been stopped.
`boolean`	`validateClusterForming()`	returns true if the restart should also validate the cluster has reformed

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - RestartCallback
```
public RestartCallback()
```
- Method Detail
  - onNodeStopped
```
public Settings onNodeStopped(java.lang.String nodeName)
                       throws java.lang.Exception
```
    Executed once the give node name has been stopped.
    
    Throws:
    
    java.lang.Exception
  - doAfterNodes
```
public void doAfterNodes(int n,
                         Client client)
                  throws java.lang.Exception
```
    Executed for each node before the n + 1 node is restarted. The given client is an active client to the node that will be restarted next.
    
    Throws:
    
    java.lang.Exception
  - clearData
```
public boolean clearData(java.lang.String nodeName)
```
    If this returns true all data for the node with the given node name will be cleared including gateways and all index data. Returns false by default.
  - validateClusterForming
```
public boolean validateClusterForming()
```
    returns true if the restart should also validate the cluster has reformed