StateBackendFactory (Flink : 2.0-SNAPSHOT API)

Type Parameters:

T - The type of the state backend created.

All Known Implementing Classes:

EmbeddedRocksDBStateBackendFactory, EmbeddedRocksDBStateBackendFactory, ForStStateBackendFactory, HashMapStateBackendFactory
```
@PublicEvolving
public interface StateBackendFactory<T extends StateBackend>
```
A factory to create a specific state backend. The state backend creation gets a Configuration object that can be used to read further config values.
The state backend factory is typically specified in the configuration to produce a configured state backend.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`T`	`createFromConfig(ReadableConfig config, ClassLoader classLoader)`	Creates the state backend, optionally using the given configuration.

- Method Detail
  - createFromConfig
```
T createFromConfig(ReadableConfig config,
                   ClassLoader classLoader)
            throws IllegalConfigurationException,
                   IOException
```
    Creates the state backend, optionally using the given configuration.
    
    Parameters:
    
    config - The Flink configuration (loaded by the TaskManager).
    
    classLoader - The class loader that should be used to load the state backend.
    
    Returns:
    
    The created state backend.
    
    Throws:
    
    IllegalConfigurationException - If the configuration misses critical values, or specifies invalid values
    
    IOException - If the state backend initialization failed due to an I/O exception