Package rs.ac.bg.etf.sab.operations

Interface WatchlistsOperations

  • public interface WatchlistsOperations

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      boolean addMovieToWatchlist​(java.lang.Integer userId, java.lang.Integer movieId)
      Adds a movie to a user's watchlist.
      java.util.List<java.lang.Integer> getMoviesInWatchlist​(java.lang.Integer userId)
      Retrieves all movies in a user's watchlist.
      java.util.List<java.lang.Integer> getUsersWithMovieInWatchlist​(java.lang.Integer movieId)
      Retrieves all users who have a specific movie in their watchlist.
      boolean isMovieInWatchlist​(java.lang.Integer userId, java.lang.Integer movieId)
      Checks if a movie is in a user's watchlist.
      boolean removeMovieFromWatchlist​(java.lang.Integer userId, java.lang.Integer movieId)
      Removes a movie from a user's watchlist.

    • Method Detail

      • addMovieToWatchlist

        boolean addMovieToWatchlist​(java.lang.Integer userId,
                            java.lang.Integer movieId)
        Adds a movie to a user's watchlist.
        Parameters:
        userId - the unique identifier of the user
        movieId - the unique identifier of the movie
        Returns:
        true if the movie was successfully added, false if it is already in the watchlist

      • removeMovieFromWatchlist

        boolean removeMovieFromWatchlist​(java.lang.Integer userId,
                                 java.lang.Integer movieId)
        Removes a movie from a user's watchlist.
        Parameters:
        userId - the unique identifier of the user
        movieId - the unique identifier of the movie
        Returns:
        true if the movie was successfully removed, false if it was not in the watchlist

      • isMovieInWatchlist

        boolean isMovieInWatchlist​(java.lang.Integer userId,
                           java.lang.Integer movieId)
        Checks if a movie is in a user's watchlist.
        Parameters:
        userId - the unique identifier of the user
        movieId - the unique identifier of the movie
        Returns:
        true if the movie exists in the user's watchlist, false otherwise

      • getMoviesInWatchlist

        java.util.List<java.lang.Integer> getMoviesInWatchlist​(java.lang.Integer userId)
        Retrieves all movies in a user's watchlist.
        Parameters:
        userId - the unique identifier of the user
        Returns:
        a list of movie IDs in the user's watchlist, or an empty list if none exist

      • getUsersWithMovieInWatchlist

        java.util.List<java.lang.Integer> getUsersWithMovieInWatchlist​(java.lang.Integer movieId)
        Retrieves all users who have a specific movie in their watchlist.
        Parameters:
        movieId - the unique identifier of the movie
        Returns:
        a list of user IDs who have added the movie to their watchlist, or an empty list if no users have added it