Package org.apache.flink.runtime.state

Interface CheckpointStorageFactory<T extends CheckpointStorage>

Type Parameters:
T - The type of the checkpoint storage created.
@PublicEvolving public interface CheckpointStorageFactory<T extends CheckpointStorage>
A factory to create a specific CheckpointStorage. The storage creation gets a configuration object that can be used to read further config values.

The checkpoint storage factory is typically specified in the configuration to produce a configured storage backend.

  • Method Summary

    Modifier and Type
    Method
    Description
    T
    createFromConfig(org.apache.flink.configuration.ReadableConfig config, ClassLoader classLoader)
    Creates the checkpoint storage, optionally using the given configuration.

  • Method Details

    • createFromConfig

      T createFromConfig(org.apache.flink.configuration.ReadableConfig config, ClassLoader classLoader) throws org.apache.flink.configuration.IllegalConfigurationException
      Creates the checkpoint storage, optionally using the given configuration.
      Parameters:
      config - The Flink configuration (loaded by the TaskManager).
      classLoader - The clsas loader that should be used to load the checkpoint storage.
      Returns:
      The created checkpoint storage.
      Throws:
      org.apache.flink.configuration.IllegalConfigurationException - If the configuration misses critical values, or specifies invalid values