| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.felix.resolver; |
| |
| import java.util.Collection; |
| |
| import org.osgi.framework.namespace.PackageNamespace; |
| import org.osgi.resource.Resource; |
| import org.osgi.resource.Wire; |
| import org.osgi.resource.Wiring; |
| |
| public interface FelixResolveContext |
| { |
| /** |
| * Return the resources that the resolver should attempt to resolve on |
| * demand for specified resource which is being resolved. Inability to |
| * resolve one of the on demand resources will not result in a resolution |
| * exception. |
| * |
| * <p> |
| * The resolver will ask for on demand resources for each resource that is |
| * getting pulled into a resolve operation. An example of an on demand |
| * resource is a fragment. When a host is being resolved the resolve context |
| * will be asked if any additional resources should be added to the resolve |
| * operation. The resolve context may decide that the potential fragments of |
| * the host should be resolved along with the host. |
| * |
| * @return A collection of the resources that the resolver should attempt to |
| * resolve for this resolve context. May be empty if there are no on demand |
| * resources. The returned collection may be unmodifiable. |
| */ |
| public Collection<Resource> getOndemandResources(Resource host); |
| |
| /** |
| * Returns the subset of {@link Wiring#getRequiredResourceWires(String) require wires} |
| * that provide wires to {@link Capability capabilities} which substitute capabilities |
| * of the given wiring. For example, when a {@link PackageNamespace package} name is both |
| * provided and required by the same resource. If the package requirement is resolved |
| * to a capability hosted by a different wiring then the package capability is |
| * considered to be substituted. |
| * |
| * @param wiring the wiring to get the substitution wires from |
| * @return A collection containing a snapshot of the substitution {@link Wire}s |
| * for the {@link Requirement requirements} of this wiring, or an empty list |
| * if this wiring has no substitution wires. |
| */ |
| public Collection<Wire> getSubstitutionWires(Wiring wiring); |
| } |