nxt.util

## Interface Observable<T,E extends java.lang.Enum<E>>

- All Known Subinterfaces:
    BlockchainProcessor, TransactionProcessor

      public interface Observable<T,E extends java.lang.Enum<E>>

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `addListener(Listener<T> listener, E eventType)`
    `boolean` | `removeListener(Listener<T> listener, E eventType)`

- - ### Method Detail

    - #### addListener

          boolean addListener(Listener<T> listener,
                              E eventType)

    - #### removeListener

          boolean removeListener(Listener<T> listener,
                                 E eventType)