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## com.vordel.es
Interface KeyHolder

All Known Implementing Classes:
  Entity

    public interface KeyHolder

Interface for any object that contains an ESPK. A prime example of this is an Entity, which gets an ESPK when it is added to a store. Other proxy objects can use this interface, such as commands which manipulate Entities, so that they can be part of an undo/redo stack for instance.

Method Summary
`ESPK` | `getPK()` Get the unique identifier for an Entity.

Method Detail

### getPK

    ESPK getPK()

  Get the unique identifier for an Entity.

  Returns:
    an ESPK corresponding to an Entity.

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