Sequencer.java

/*
 * Copyright (C) 2013-2017 NTT DATA Corporation
 *
 * 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.terasoluna.gfw.common.sequencer;

/**
 * Interface for Sequencing functionality
 * @param <T> type of sequence value
 */
public interface Sequencer<T> {

    /**
     * Returns the next value in the sequence
     * @return T next value in that sequence
     */
    T getNext();

    /**
     * Returns the current value in the sequence
     * @return T current value in that sequence
     */
    T getCurrent();
}