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Swirlds is a software platform designed to build fully-distributed applications that harness the power of the cloud without servers. Now you can develop applications with fairness in decision making, speed, trust and reliability, at a fraction of the cost of traditional server-based platforms.
/*
* Copyright (C) 2016-2024 Hedera Hashgraph, LLC
*
* 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 com.swirlds.common.merkle.impl.destroyable;
import com.swirlds.common.merkle.impl.PartialNaryMerkleInternal;
import com.swirlds.common.merkle.impl.internal.AbstractMerkleNode;
import edu.umd.cs.findbugs.annotations.NonNull;
import java.util.Objects;
/**
* A variant of {@link PartialNaryMerkleInternal} that stores a callback that is invoked when
* {@link AbstractMerkleNode#destroyNode() destroyNode()} is called.
*/
public class DestroyableNaryMerkleInternal extends PartialNaryMerkleInternal {
private final Runnable onDestroy;
/**
* Create a new abstract node.
*
* @param onDestroy
* called when this node is destroyed
*/
public DestroyableNaryMerkleInternal(@NonNull final Runnable onDestroy) {
this.onDestroy = Objects.requireNonNull(onDestroy, "onDestroy must not be null");
}
/**
* {@inheritDoc}
*/
@Override
protected void destroyNode() {
onDestroy.run();
}
}