/**
* Copyright (C) 2011 Brian Ferris <bdferris@onebusaway.org>
*
* 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.onebusaway.federations.annotations;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import org.onebusaway.federations.FederatedService;
/**
* Directs the creation of a {@link FederatedServiceMethodInvocationHandler},
* where a method returns either a {@link List} or a {@link Map} and the
* federated method return value is generated by calling each
* {@link FederatedService} in turn an aggregating the results with the
* appropriate collection.
*
* <pre class="code">
* @FederatedByAggregateMethod
* public List<String> getValuesAsList();
* @FederatedByAggregateMethod
* public Map<String,String> getValuesAsMap();
* </pre>
*
* @author bdferris
* @see FederatedServiceMethodInvocationHandlerFactory
* @see FederatedByAggregateMethodInvocationHandlerImpl
*/
@Retention(value = RetentionPolicy.RUNTIME)
@Target(value = ElementType.METHOD)
public @interface FederatedByAggregateMethod {
}