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Tooling for reactive Domain-Driven Design projects that are highly concurrent. Includes compute grid, actor caching, spaces, cross-node cluster messaging, CQRS, and Event Sourcing support.
// Copyright © 2012-2020 VLINGO LABS. All rights reserved.
//
// 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 https://mozilla.org/MPL/2.0/.
package io.vlingo.lattice.exchange;
import io.vlingo.actors.Logger;
/**
* Exchange that does nothing.
*/
public class NullExchange implements Exchange {
public static final NullExchange Instance = new NullExchange();
private final Logger logger = Logger.basicLogger();
/**
* @see io.vlingo.lattice.exchange.Exchange#close()
*/
@Override
public void close() { }
/**
* @see io.vlingo.lattice.exchange.Exchange#channel()
*/
@Override
public T channel() { return null; }
/**
* @see io.vlingo.lattice.exchange.Exchange#connection()
*/
@Override
public T connection() { return null; }
/**
* @see io.vlingo.lattice.exchange.Exchange#name()
*/
@Override
public String name() { return "NullExchange"; }
/**
* @see io.vlingo.lattice.exchange.Exchange#register(io.vlingo.lattice.exchange.Covey)
*/
@Override
public Exchange register(final Covey covey) { return this; }
/**
* @see io.vlingo.lattice.exchange.Exchange#send(java.lang.Object)
*/
@Override
public void send(final L local) {
logger.error("NullExchange: Sending nowhere: " + local);
}
}
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