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Collection interfaces that notify registered observers of precise state changes

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// Copyright 2015-2024 Nstream, inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package swim.observable;

import swim.observable.function.DidSet;
import swim.observable.function.WillSet;

public interface ObservableValue extends Observable {

  V get();

  V set(V newValue);

  @Override
  ObservableValue observe(Object observer);

  @Override
  ObservableValue unobserve(Object observer);

  ObservableValue willSet(WillSet willSet);

  ObservableValue didSet(DidSet didSet);

}