package com.github.hunter0x7c7.sync.model.storage; import javafx.stage.Stage; public class Session { private static Session mInstance; private Session() { } public static Session getInstance() { if (mInstance == null) { synchronized (Session.class) { if (mInstance == null) { mInstance = new Session(); } } } return mInstance; } private Stage primaryStage; public Stage getPrimaryStage() { return primaryStage; } public void setPrimaryStage(Stage primaryStage) { this.primaryStage = primaryStage; } }