Package org.apache.flink.runtime.state

Interface CompletedCheckpointStorageLocation

All Superinterfaces:
Serializable
All Known Implementing Classes:
FsCompletedCheckpointStorageLocation
public interface CompletedCheckpointStorageLocation extends Serializable
The CompletedCheckpointStorageLocation describes the storage aspect of a completed checkpoint. It can be used to obtain access to the metadata, get a reference pointer to the checkpoint, or to dispose the storage location.

  • Method Details

    • getExternalPointer

      String getExternalPointer()
      Gets the external pointer to the checkpoint. The pointer can be used to resume a program from the savepoint or checkpoint, and is typically passed as a command line argument, an HTTP request parameter, or stored in a system like ZooKeeper.

    • getMetadataHandle

      StreamStateHandle getMetadataHandle()
      Gets the state handle to the checkpoint's metadata.

    • disposeStorageLocation

      void disposeStorageLocation() throws IOException
      Disposes the storage location. This method should be called after all state objects have been released. It typically disposes the base structure of the checkpoint storage, like the checkpoint directory.
      Throws:
      IOException