UserCodeClassLoader (Flink : 2.0-SNAPSHOT API)

All Known Implementing Classes:

SimpleUserCodeClassLoader
```
@PublicEvolving
public interface UserCodeClassLoader
```
UserCodeClassLoader allows to register release hooks for a user code class loader.
These release hooks are being executed just before the user code class loader is being released.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`ClassLoader`	`asClassLoader()`	Obtains the actual class loader.
`void`	`registerReleaseHookIfAbsent(String releaseHookName, Runnable releaseHook)`	Registers a release hook which is being executed before the user code class loader is being released.

- Method Detail
  - asClassLoader
```
ClassLoader asClassLoader()
```
    Obtains the actual class loader.
    
    Returns:
    
    actual class loader
  - registerReleaseHookIfAbsent
```
void registerReleaseHookIfAbsent(String releaseHookName,
                                 Runnable releaseHook)
```
    Registers a release hook which is being executed before the user code class loader is being released.
    
    Parameters:
    
    releaseHookName -
    
    releaseHook - releaseHook which is executed before the user code class loader is being released.