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/*
 Copyright 2013 Red Hat, Inc. and/or its affiliates.

 This file is part of lightblue.

 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program.  If not, see .
 */
package com.redhat.lightblue.util;

/**
 * Interface representing a cursor into a collection. Upon construction, cursor
 * points to the location before the first element, so calling next() is
 * required.
 */
public interface Cursor {

    /**
     * Returns if there is a next element
     */
    boolean hasNext();

    /**
     * Position the cursor to the next element.
     */
    void next();

    /**
     * Get the current value
     */
    V getCurrentValue();
}