namespace VisionCommon {
    public abstract class PatternBase : IDirtyChecker {
        private object _lock = new object();
        private bool _isDirty = false;

        public bool IsDirty() {
            lock (_lock) {
                return _isDirty;
            }
        }

        public void SetDirty() {
            lock (_lock) {
                _isDirty = true;
            }
        }

        public void CleanDirty() {
            lock (_lock) {
                _isDirty = false;
            }
        }
    }
}