CRIUSupport.HookMode (OpenJ9 JDK 11)

java.lang.Object
- java.lang.Enum<CRIUSupport.HookMode>
- - org.eclipse.openj9.criu.CRIUSupport.HookMode

All Implemented Interfaces:

Serializable, Comparable<CRIUSupport.HookMode>

Enclosing class:

CRIUSupport
```
public static enum CRIUSupport.HookMode
extends Enum<CRIUSupport.HookMode>
```
A hook can be one of the following states: SINGLE_THREAD_MODE - a mode in which only the Java thread that requested a checkpoint is permitted to run. This means that global state changes are permitted without the risk of race conditions. It also implies that if one attempts to acquire a resource held by another Java thread a deadlock might occur, or a JVMCheckpointException or JVMRestoreException to be thrown if such an attempt is detected by JVM. CONCURRENT_MODE - a hook running when the SINGLE_THREAD_MODE is NOT enabled

Enum Constant Summary

Enum Constants
Enum Constant Description

CONCURRENT_MODE

SINGLE_THREAD_MODE

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static CRIUSupport.HookMode`	`valueOf(String name)`	Returns the enum constant of this type with the specified name.
`static CRIUSupport.HookMode[]`	`values()`	Returns an array containing the constants of this enum type, in the order they are declared.

Methods declared in class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods declared in class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Enum Constant Detail
  - SINGLE_THREAD_MODE
```
public static final CRIUSupport.HookMode SINGLE_THREAD_MODE
```
  - CONCURRENT_MODE
```
public static final CRIUSupport.HookMode CONCURRENT_MODE
```
- Method Detail
  - values
```
public static CRIUSupport.HookMode[] values()
```
    Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
    for (CRIUSupport.HookMode c : CRIUSupport.HookMode.values()) System.out.println(c);
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static CRIUSupport.HookMode valueOf(String name)
```
    Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
    
    Parameters:
    
    name - the name of the enum constant to be returned.
    
    Returns:
    
    the enum constant with the specified name
    
    Throws:
    
    IllegalArgumentException - if this enum type has no constant with the specified name
    
    NullPointerException - if the argument is null