LibraryCacheManager.ClassLoaderHandle (Flink : 2.0-SNAPSHOT API)

All Known Subinterfaces:

LibraryCacheManager.ClassLoaderLease

Enclosing interface:

LibraryCacheManager
```
public static interface LibraryCacheManager.ClassLoaderHandle
```
Handle to retrieve a user code class loader for the associated job.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`UserCodeClassLoader`	`getOrResolveClassLoader(Collection<PermanentBlobKey> requiredJarFiles, Collection<URL> requiredClasspaths)`	Gets or resolves the user code class loader for the associated job.

- Method Detail
  - getOrResolveClassLoader
```
UserCodeClassLoader getOrResolveClassLoader(Collection<PermanentBlobKey> requiredJarFiles,
                                            Collection<URL> requiredClasspaths)
                                     throws IOException
```
    Gets or resolves the user code class loader for the associated job.
    In order to retrieve the user code class loader the caller has to specify the required jars and class paths. Upon calling this method first for a job, it will make sure that the required jars are present and potentially cache the created user code class loader. Every subsequent call to this method, will ensure that created user code class loader can fulfill the required jar files and class paths.
    
    Parameters:
    
    requiredJarFiles - requiredJarFiles the user code class loader needs to load
    
    requiredClasspaths - requiredClasspaths the user code class loader needs to be started with
    
    Returns:
    
    the user code class loader fulfilling the requirements
    
    Throws:
    
    IOException - if the required jar files cannot be downloaded
    
    IllegalStateException - if the cached user code class loader does not fulfill the requirements