Services

User Service

• Methods encapsulating DAO logic: createUser, updateUser, removeUser, getAllUsers, getUserById, getUserByUsername
• Business logic methods:
  • authenticate - checks if given username and password hash is valid
  • isAdmin - checks if given user is an administrator

Channel Service

• Methods encapsulating DAO logic: createChannel, updateChannel, removeChannel, getAllChannels, getChannelById, getChannelByName, getChannelsByType

Transmission Service

This service covers both Transmission and Transmission Occurrences. The reason is Transmission Occurrence is an integral part of Transmission and cannot, in business logic, exist separately.

• Methods encapsulating DAO logic: createTransmission, updateTransmission, removeTransmission, getTransmissionById, getTransmissionByName
• Methods encapsulating DAO logic for Transmission Occurrences: addOccurrence, updateOccurrence, removeOccurrence
• Business logic methods:
  • getOccurrences - gets all occurrences of the transmission, incl. occurrences in history
  • getUpcomingOccurrences - gets all upcoming occurrences of the transmission
  • getVotings - gets all votings for the transmission
  • getAverageVoting - gets average numeric voting for the transmission

User Profile Service

This service covers an user profile, i. e. user's interaction with channels and transmissions.

• Business logic methods:
  • followChannel - add channel to user favorites
  • unfollowChannel - remove channel from user favorites
  • getFavoriteChannels - get all users favorite channels
  • followTransmission
  • unfollowTransmission
  • getFavoriteTransmissions
  • getUpcomingFavoriteTransmissions - get upcoming favorite transmissions (in some reasonable time span)
  • getVotings
  • addVoting
  • updateVoting