74.3 Understanding Entities

Each database table will have associated with it an entity class. This class defines the schema for the table and takes the form of a standard Kotlin class interspersed with some special Room annotations. An example Kotlin class declaring the data to be stored within a database table might read as follows:

class Customer {

 

    var id: Int = 0

    var name: String? = null

    var address: String? = null

 

    constructor() {}

 

    constructor(id: Int, name: String, address: String) {

        this.id = id

        this.name = name

        this.address = address

    }

    constructor(name: String, address: String) {

    ...