org.fabric3.spi.contribution.DependencyResolver Maven / Gradle / Ivy
/*
* Fabric3
* Copyright (c) 2009-2015 Metaform Systems
*
* 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.
* Portions originally based on Apache Tuscany 2007
* licensed under the Apache 2.0 license.
*/
package org.fabric3.spi.contribution;
import java.util.List;
/**
* Resolves contribution dependencies.
*/
public interface DependencyResolver {
/**
* Resolves dependencies for the given contributions. An ordered list is returned based on a reverse topological sort of contribution resolved
* imports and capability requirements.
*
* @param contributions the list of contributions to order
* @return the ordered list of contributions
* @throws DependencyException if an error occurs ordering the contributions such as an unresolvable import or dependency cycle
*/
List resolve(List contributions) throws DependencyException;
/**
* Orders a list of contributions to uninstall. Ordering is calculated by topologically sorting the list based on resolved contribution imports
* and capability requirements.
*
* @param contributions the contributions to order
* @return the ordered list of contributions
*/
List orderForUninstall(List contributions);
}