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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.utility;
/**
* A utility class for passing a reference to an object.
* Cheaper than using an atomic reference when atomicity is not needed.
*
* @param
* the type of the value being passed
*/
public class ValueReference {
private V value;
/**
* Create a new ValueReference with an initial value of null.
*/
public ValueReference() {}
/**
* Create a new ValueReference with an initial value.
*
* @param value
* the initial value
*/
public ValueReference(final V value) {
this.value = value;
}
/**
* Get the value.
*/
public V getValue() {
return value;
}
/**
* Set the value.
*/
public void setValue(final V value) {
this.value = value;
}
/**
* {@inheritDoc}
*/
@Override
public String toString() {
return "[" + (value == null ? null : value) + "]";
}
}