public static void loadFromText(String text) {
try {
if (singleton == null) {
// default behavior is to create a singleton for
// an in memory dbserver
useDBServer();
}
singleton.loadFromText(text);
} catch (Exception e) {
ExceptionWindow.getExceptionWindow(e);
}
}
public static StorageListener useDBServer() {
// assume in memory with some initial state
if (singleton != null) {
return (singleton);
}
try {
singleton = (StorageListener) DBServer.initInMemory();
} catch (Exception e) {
ExceptionWindow.getExceptionWindow(e);
}
return (singleton);
}
public static void createEmpty() {
try {
if (singleton == null) {
// default behavior is to create a singleton for
// an in memory dbserver
useDBServer();
}
singleton.createEmpty();
} catch (Exception e) {
ExceptionWindow.getExceptionWindow(e);
}
}
public static StorageListener useDBServer(String dbName) {
// assumed persistent
if (singleton != null) {
return (singleton);
}
try {
singleton = (StorageListener) DBServer.init(dbName);
} catch (Exception e) {
ExceptionWindow.getExceptionWindow(e);
}
return (singleton);
}