// The Nova Project by Ken Beckett. // Copyright (C) 2007-2012 Inevitable Software, all rights reserved. // Released under the Common Development and Distribution License, CDDL-1.0: http://opensource.org/licenses/cddl1.php using System.Collections; using System.Collections.Generic; namespace Nova.Utilities { /// <summary> /// Static helper methods for Collections. /// </summary> public static class CollectionUtil { #region /* STATIC HELPER METHODS */ /// <summary> /// Check if the specified collection is empty or null. /// </summary> /// <param name="thisCollection">The collection to check.</param> /// <returns>True if collection is empty or null.</returns> public static bool IsEmpty(ICollection thisCollection) { return (thisCollection == null || thisCollection.Count == 0); } /// <summary> /// Check if the specified collection is empty or null. /// </summary> /// <param name="thisCollection">The collection to check.</param> /// <returns>True if collection is empty or null.</returns> public static bool NotEmpty(ICollection thisCollection) { return (thisCollection != null && thisCollection.Count > 0); } /// <summary> /// Get the count of the specified collection, or 0 if it's null. /// </summary> /// <param name="thisCollection">The collection to check.</param> /// <returns>Collection count or 0 if null.</returns> public static int NNCount(ICollection thisCollection) { return (thisCollection != null ? thisCollection.Count : 0); } /// <summary> /// Compare the sizes and members of this List with another List. /// </summary> /// <param name="thisList">The collection to be compared.</param> /// <param name="thatList">The collection to compare it to.</param> /// <typeparam name="T">The generic type parameter of the Lists being compared.</typeparam> /// <returns>True if the collections are equal, otherwise false.</returns> public static bool CompareList<T>(List<T> thisList, List<T> thatList) where T : struct { if (thisList.Count != thatList.Count) return false; for (int i = 0; i < thisList.Count; ++i) { if (!thisList[i].Equals(thatList[i])) return false; } return true; } #endregion } }
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