WeakRef.java
/**
* Copyright (c) 2023, RTE (http://www.rte-france.com)
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
* SPDX-License-Identifier: MPL-2.0
*/
package com.powsybl.openloadflow.network.impl;
import java.lang.ref.WeakReference;
import java.util.Objects;
/**
* @author Geoffroy Jamgotchian {@literal <geoffroy.jamgotchian at rte-france.com>}
*/
class WeakRef<T> implements Ref<T> {
private final WeakReference<T> value;
WeakRef(T identifiable) {
this.value = new WeakReference<>(Objects.requireNonNull(identifiable));
}
@Override
public T get() {
return Objects.requireNonNull(value.get(), "Reference has been garbage collected");
}
}