SelectableEntity.kt

package com.example.expandablerecyclerview.data.nestedselect

import androidx.databinding.Observable
import androidx.databinding.ObservableField


data class SelectableEntity(var id: String = "", var itemName: String = "",  var isSelected: Boolean = false) {
    
    val selectableField = ObservableField(isSelected)

    init {
        selectableField.addOnPropertyChangedCallback(object : Observable.OnPropertyChangedCallback() {
            override fun onPropertyChanged(sender: Observable?, propertyId: Int) {
                isSelected = selectableField.get() ?: false
            }
        })
    }

    data class ParentDescription(val id: String, val name: String)
}