Example.java

package example;

import com.kopemorta.userpreferences.Config;
import com.kopemorta.userpreferences.UserPreferences;
import lombok.EqualsAndHashCode;
import lombok.Getter;
import lombok.Setter;

import java.io.File;

public class Example {

    public static void main(String[] args) {
        final Config config = Config.builder() // if need
                .delay(100)
                .initialDelay(20)
                // etc
                .build();

        UserPreferences.init(config); // if don't use custom config - skip init

        final Settings settings = Settings.getInstance();
        UserPreferences.registerInstance(settings); // register instance

        /*
         * Done.
         * You can change settings object as you want.
         * Edit file, call setters, by reflection, etc.
         */
        settings.setConTimeout(231);
        settings.setMyCustomFile(new File("new file"));
        settings.setMySuperString("MY VERY SUPER STRING !!!");
    }
}


@EqualsAndHashCode(callSuper = false)
class Settings implements UserPreferences {

    private static final File PREF_FILE = new File("settings.cfg");

    private static volatile Settings instance;

    public static Settings getInstance() {
        Settings localInstance = instance;
        if (localInstance == null) {
            synchronized (Settings.class) {
                localInstance = instance;
                if (localInstance == null) {
                    instance = localInstance = new Settings();
                }
            }
        }
        return localInstance;
    }


    @Getter
    @Setter
    private File myCustomFile = new File("mysupefile.txt");

    @Getter
    @Setter
    private long timeout = 25;

    @Getter
    @Setter
    private long conTimeout = 10;

    @Getter
    @Setter
    private long readTimeout = 10;

    @Getter
    @Setter
    private String mySuperString = "aooaooo";


    private Settings() {
    }


    @Override
    public File userPreferencesFile() {
        return PREF_FILE;
    }

}