WordDao.kt

@Insert(onConflict = OnConflictStrategy.REPLACE)
    fun insertWord(word: Word)

@Query ("Select * from word_table")
    fun getAllWordsPaged() : DataSource.Factory<Int, Word>

@Query("Delete from word_table where name like :name")
    fun deleteWord(name: String)

@Query("Update word_table set name = :name, meaning = :meaning, audioPath = :audiopath where name like :originalName")
    fun updateWord(originalName: String, name: String, meaning:String?, audiopath: String?)