protected FBServiceManager(GDSType gdsType) { this.gds = GDSFactory.getGDSForType(gdsType);
protected FBServiceManager() { this.gds = GDSFactory.getGDSForType(GDSFactory.getDefaultGDSType());
    protected FBServiceManager(GDSType gdsType) {        this.gds = GDSFactory.getGDSForType(gdsType);    }