core/api/src/main/java/org/onosproject/core/IdGenerator.java

/*
 * Copyright 2014-present Open Networking Foundation
 *
 * 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.onosproject.core;

/**
 * A generalized interface for ID generation
 *
 * {@link #getNewId()} generates a globally unique ID instance on
 * each invocation.
 */
public interface IdGenerator {
    /**
     * Returns a globally unique ID instance.
     *
     * @return globally unique ID instance
     */
    long getNewId();
}