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/*-
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.policy.drools.features;
import org.onap.policy.drools.controller.DroolsController;
import org.onap.policy.drools.utils.OrderedService;
import org.onap.policy.drools.utils.OrderedServiceImpl;
/**
* Drools Controller Feature API. Hooks into the Drools Controller operations.
*/
public interface DroolsControllerFeatureAPI extends OrderedService {
/**
* intercepts before the Drools Controller gives the Policy Container a fact to
* insert into its Policy Sessions
*
* @return true if this feature intercepts and takes ownership
* of the operation preventing the invocation of
* lower priority features. False, otherwise.
*/
default boolean beforeInsert(DroolsController controller, Object fact) {return false;}
/**
* called after a fact is injected into the Policy Container
*
* @return true if this feature intercepts and takes ownership
* of the operation preventing the invocation of
* lower priority features. False, otherwise.
*/
default boolean afterInsert(DroolsController controller, Object fact, boolean successInsert) {return false;}
/**
* Feature providers implementing this interface
*/
public static final OrderedServiceImpl<DroolsControllerFeatureAPI> providers =
new OrderedServiceImpl<DroolsControllerFeatureAPI>(DroolsControllerFeatureAPI.class);
}
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