/*
* Copyright 2012 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.gradle.api.artifacts.result;
import org.gradle.api.Incubating;
import org.gradle.api.Nullable;
import org.gradle.api.artifacts.ModuleVersionIdentifier;
import org.gradle.api.artifacts.component.ComponentIdentifier;
import java.util.Set;
/**
* Represents a component instance in the resolved dependency graph. Provides some basic identity and dependency information about the component.
*/
@Incubating
// Should really be named ComponentGraphResult
public interface ResolvedComponentResult {
/**
* <p>Returns the identifier of this component. This can be used to uniquely identify the component within the current build, but it is not necessarily unique between
* different builds.
*
* <p>The return type is declared as an opaque {@link ComponentIdentifier}, however the identifier may also implement one of the following interfaces:</p>
*
* <ul>
* <li>{@link org.gradle.api.artifacts.component.ProjectComponentIdentifier} for those component instances which are produced by the current build.</li>
* <li>{@link org.gradle.api.artifacts.component.ModuleComponentIdentifier} for those component instances which are found in some repository.</li>
* </ul>
*
* @return the identifier of this component
*/
ComponentIdentifier getId();
/**
* <p>Returns the dependencies of this component. Includes resolved and unresolved dependencies (if any).
*
* <p>The elements of the returned collection are declared as {@link DependencyResult}, however the dependency instances will also implement one of the
* following instances:</p>
*
* <ul>
* <li>{@link ResolvedDependencyResult} for dependencies which were successfully resolved.</li>
* <li>{@link UnresolvedDependencyResult} for dependencies which could not be resolved for some reason.</li>
* </ul>
*
* @return the dependencies of this component
*/
Set<? extends DependencyResult> getDependencies();
/**
* Returns the incoming dependencies of this component.
*
* @return the dependents of this component
*/
Set<? extends ResolvedDependencyResult> getDependents();
/**
* Returns the reason why this particular component was selected in the result.
* Useful if multiple candidate components were found during dependency resolution.
*
* @return the reason for selecting the component
*/
ComponentSelectionReason getSelectionReason();
/**
* Returns the module version which this component belongs to, if any. A component will belong to a module version if it was found in some repository, or if the
* module version for the component has been declared, usually by declaring how the component should be published.
*
* @return the module version of the component, or {@code null} if this component has no associated module version.
*/
@Nullable
ModuleVersionIdentifier getModuleVersion();
}