/*
 * Copyright 2017 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;

import javax.annotation.Nullable;
import java.util.Collection;

public interface ConflictResolverDetails<T> {
    Collection<? extends T> getCandidates();

    void select(T candidate);

    void fail(Throwable error);

    @Nullable
    T getSelected();

    @Nullable
    Throwable getFailure();

    boolean hasFailure();

    boolean hasSelected();
}
