/*
 * Copyright 2014 Open Networking Laboratory
 *
 * 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.onlab.onos.net.flow;

import java.util.Set;

/**
 * Interface capturing the result of a batch operation.
 *
 */
public interface BatchOperationResult<T> {

    /**
     * Returns whether the operation was successful.
     * @return true if successful, false otherwise
     */
    boolean isSuccess();

    /**
     * Obtains a set of items which failed.
     * @return a set of failures
     */
    Set<T> failedItems();

}