/**
* Stores the config object in the database. Please call this after any modifications to the
* config, it is not done automatically because the user interface will usually change many values
* at once.
*/
public synchronized void storeAndCommit() {
synchronized (mDB.lock()) {
try {
mDB.store(mStringParams, 3);
mDB.store(mIntParams, 3);
mDB.store(this);
mDB.commit();
} catch (RuntimeException e) {
System.gc();
mDB.rollback();
Logger.error(this, "ROLLED BACK!", e);
throw e;
}
}
}
/**
* Loads an existing Config object from the database and adds any missing default values to it,
* creates and stores a new one if none exists.
*
* @return The config object.
*/
public static Config loadOrCreate(WoT myWoT) {
ExtObjectContainer db = myWoT.getDB();
synchronized (db.lock()) {
Config config;
ObjectSet<Config> result = db.queryByExample(Config.class);
if (result.size() == 0) {
Logger.debug(myWoT, "Creating new Config...");
config = new Config(myWoT);
config.storeAndCommit();
} else {
if (result.size() > 1) /* Do not throw, we do not want to prevent WoT from starting up. */
Logger.error(myWoT, "Multiple config objects stored!");
Logger.debug(myWoT, "Loaded config.");
config = result.next();
config.initializeTransient(myWoT);
config.setDefaultValues(false);
}
return config;
}
}