/*
* Copyright 2014-2016 the original author or authors.
*
* 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 org.springframework.integration.routingslip;
import org.springframework.messaging.Message;
/**
* The {@code RoutingSlip} strategy to determine the next {@code replyChannel}.
* <p>
* This strategy is called repeatedly until null or an empty String is returned.
*
* @author Artem Bilan
* @since 4.1
* @see org.springframework.integration.handler.AbstractMessageProducingHandler
*/
@FunctionalInterface
public interface RoutingSlipRouteStrategy {
/**
* Get the next path for this routing slip.
* @param requestMessage the request message.
* @param reply the reply - depending on context, this may be a user-level domain
* object, a {@link Message} or a {@code AbstractIntegrationMessageBuilder}.
* @return a channel name or another {@link RoutingSlipRouteStrategy}.
*/
Object getNextPath(Message<?> requestMessage, Object reply);
}