Package org.apache.flink.runtime.persistence

Interface RetrievableStateStorageHelper<T extends Serializable>

  • Type Parameters:
    T - The type of the data that can be stored by this storage helper.
    All Known Implementing Classes:
    FileSystemStateStorageHelper
    public interface RetrievableStateStorageHelper<T extends Serializable>
    State storage helper which is used by StateHandleStore to persist state before the state handle is written to the underlying system.

    • Method Detail

      • store

        RetrievableStateHandle<T> store​(T state)
                         throws Exception
        Stores the given state and returns a state handle to it.
        Parameters:
        state - State to be stored
        Returns:
        State handle to the stored state
        Throws:
        Exception - if an error occurred while storing the state.