gradle-master/subprojects/dependency-management/src/main/java/org/gradle/api/internal/artifacts/ivyservice/resolveengine/graph/selectors/ResolvableSelectorState.java
/*
 * Copyright 2018 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.internal.artifacts.ivyservice.resolveengine.graph.selectors;

import org.gradle.api.artifacts.component.ComponentSelector;
import org.gradle.api.artifacts.component.ProjectComponentSelector;
import org.gradle.api.internal.artifacts.ResolvedVersionConstraint;
import org.gradle.api.internal.artifacts.ivyservice.ivyresolve.strategy.VersionSelector;
import org.gradle.internal.component.model.IvyArtifactName;
import org.gradle.internal.resolve.result.ComponentIdResolveResult;

import javax.annotation.Nullable;

public interface ResolvableSelectorState {
    /**
     * The raw component selector being resolved, after any substitution.
     */
    ComponentSelector getSelector();

    /**
     * The version constraint that applies to this selector, if any.
     * Will return null for a project selector.
     */
    @Nullable
    ResolvedVersionConstraint getVersionConstraint();

    /**
     * Resolve the selector to a component identifier.
     */
    ComponentIdResolveResult resolve(VersionSelector allRejects);

    /**
     * Resolve the prefer constraint of the selector to a component identifier.
     */
    @Nullable
    ComponentIdResolveResult resolvePrefer(VersionSelector allRejects);

    /**
     * Mark the selector as resolved.
     * This is used when another selector resolved to a component identifier that satisfies this selector.
     * In that case, a call to {@link #resolve(VersionSelector)} is not required.
     */
    void markResolved();

    boolean isForce();

    boolean isSoftForce();

    boolean isFromLock();

    boolean hasStrongOpinion();

    IvyArtifactName getFirstDependencyArtifact();

    @Deprecated
    org.gradle.api.artifacts.ClientModule getClientModule();

    boolean isChanging();

    default boolean isProject() {
        return getSelector() instanceof ProjectComponentSelector;
    }
}
