105 lines
2.2 KiB
C#
105 lines
2.2 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using ProjectDumpTruck.Exceptions;
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namespace ProjectDumpTruck.CollectionGenericObject;
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public class ListGenericObjects<T> : ICollectionGenericObject<T>
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where T: class
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{
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/// <summary>
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/// Список объектов, которые храним
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/// </summary>
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private readonly List<T?> _collection;
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/// <summary>
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/// Максимально допустимое число объектов в списке
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/// </summary>
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private int _maxCount;
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public int Count => _collection.Count;
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public int MaxCount {
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get
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{
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return _collection.Count;
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}
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set
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{
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if (value > 0)
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{
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_maxCount = value;
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}
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}
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}
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public CollectionType GetCollectionType => CollectionType.List;
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/// <summary>
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/// Конструктор
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/// </summary>
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public ListGenericObjects()
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{
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_collection = new();
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}
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public T? Get(int position)
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{
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if (position < 0 || position >= Count)
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{
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throw new PositionOutOfCollectionException(position);
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}
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return _collection[position];
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}
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public int Insert(T obj)
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{
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if (Count == _maxCount)
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{
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throw new CollectionOverflowException(Count);
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}
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_collection.Add(obj);
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return _collection.Count;
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}
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public int Insert(T obj, int position)
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{
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if (position < 0 || position > Count)
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{
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throw new PositionOutOfCollectionException(position);
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}
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if (Count == _maxCount)
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{
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throw new CollectionOverflowException(Count);
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}
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_collection.Insert(position, obj);
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return position;
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}
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public T? Remove(int position)
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{
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if (position < 0 || position > Count)
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{
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throw new PositionOutOfCollectionException(position);
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}
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T? obj = _collection[position];
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_collection.RemoveAt(position);
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return obj;
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}
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public IEnumerable<T?> GetItems()
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{
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for (int i = 0; i < Count; i++) yield return _collection[i];
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}
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}
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