QueryModel.kt

class Query(subject: Resource?, label: String, content: String) {
    private val originalSubjectProperty = SimpleStringProperty(subject.toString())
    fun originalSubjectProperty() = originalSubjectProperty
    var originalSubject by originalSubjectProperty

    private val subjectProperty = SimpleStringProperty(subject.toString())
    fun subjectProperty() = subjectProperty
    var subject by subjectProperty

    private val originalLabelProperty = SimpleStringProperty(label)
    fun originalLabelProperty() = originalLabelProperty
    var originalLabel by originalLabelProperty

    private val labelProperty = SimpleStringProperty(label)
    fun labelProperty() = labelProperty
    var label by labelProperty

    private val originalContentProperty = SimpleStringProperty(content)
    fun originalContentProperty() = originalContentProperty
    var originalContent by originalContentProperty

    private val contentProperty = SimpleStringProperty(content)
    fun contentProperty() = contentProperty
    var content by contentProperty

    private val changedProperty = SimpleBooleanProperty(false)
    fun changedProperty() = changedProperty
    var changed by changedProperty

    val result = ResultList()

    private val errorProperty = SimpleStringProperty("")
    fun errorProperty() = errorProperty
    var error by errorProperty

    private val insertAtCursorProperty = SimpleStringProperty("")
    fun insertAtCursorProperty() = insertAtCursorProperty
    var insertAtCursor by insertAtCursorProperty

    init {
        labelProperty().onChange { changed = true }
        contentProperty().onChange { changed = true }
    }

    override fun toString(): String {
        return "QueryModel: $originalSubject->$subject $originalLabel->$label $originalContent->$content $changed $error"
    }
}

class QueryModel(query: Query): ItemViewModel<Query>(query) {
    val originalSubject = bind(Query::originalSubjectProperty)
    val originalLabel = bind(Query::originalLabelProperty)
    val originalContent = bind(Query::originalContentProperty)
    val subject = bind(Query::subjectProperty)
    val label = bind(Query::labelProperty)
    val content = bind(Query::contentProperty)
    val changed = bind(Query::changedProperty)
    val result = bind(Query::result)
    val error = bind(Query::errorProperty)
    val insertAtCursor = bind(Query::insertAtCursorProperty)
}