CSFieldValueCollection.cs :  » Persistence-Frameworks » Vici-CoolStorage » Vici » CoolStorage » C# / CSharp Open Source

#region License
//=============================================================================
// Vici CoolStorage - .NET Object Relational Mapping Library 
//
// Copyright (c) 2004-2009 Philippe Leybaert
//
// Permission is hereby granted, free of charge, to any person obtaining a copy 
// of this software and associated documentation files (the "Software"), to deal 
// in the Software without restriction, including without limitation the rights 
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
// copies of the Software, and to permit persons to whom the Software is 
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in 
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//=============================================================================
#endregion

using System;
using System.Collections;
using System.Collections.Generic;

namespace Vici.CoolStorage{
  internal class CSFieldValueCollection : IEnumerable<CSFieldValue>
  {
        private readonly Dictionary<string, CSFieldValue> _map = new Dictionary<string, CSFieldValue>();
        private readonly List<CSFieldValue> _list = new List<CSFieldValue>();

    internal CSFieldValueCollection(CSObject csObject)
    {
      foreach (CSSchemaField schemaField in csObject.Schema.Fields)
      {
        CSFieldValue fieldValue = new CSFieldValue(csObject,schemaField);

        _list.Add(fieldValue);

        if (fieldValue.SchemaField.HasProperty)
          _map[fieldValue.SchemaField.Name] = fieldValue;

        if (fieldValue.SchemaField.MappedColumn != null)
          _map["#" + fieldValue.SchemaField.MappedColumn.Name] = fieldValue;
      }
    }

    internal CSFieldValue this[string memberName]
    {
      get
      {
                CSFieldValue value;

                if (_map.TryGetValue(memberName, out value))
                    return value;
                else
                    return null;
      }
    }

    internal bool IsDirty
    {
      get
      {
        foreach (CSFieldValue fieldValue in _list)
          if (fieldValue.IsDirty)
            return true;

        return false;
      }
    }

    public IEnumerator<CSFieldValue> GetEnumerator()
    {
      return _list.GetEnumerator();
    }

        IEnumerator IEnumerable.GetEnumerator()
        {
            return _list.GetEnumerator();
        }
  }
}