Collections/IndexedLookUp.cs

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/*
 * Author: Kishore Reddy
 * Url: http://commonlibrarynet.codeplex.com/
 * Title: CommonLibrary.NET
 * Copyright: � 2009 Kishore Reddy
 * License: LGPL License
 * LicenseUrl: http://commonlibrarynet.codeplex.com/license
 * Description: A C# based .NET 3.5 Open-Source collection of reusable components.
 * Usage: 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.
 */
using System;
using System.Collections.Generic;
using System.Text;

using ComLib;


namespace ComLib.Collections
{
    /// <summary>
    /// Interface that any component must implement
    /// so that it can be indexed by an id or by a name.
    /// </summary>
    /// <typeparam name="TNumericKey"></typeparam>
    public interface IIndexedComponent<TNumericKey>
    {
        /// <summary>
        /// Get the key id.
        /// </summary>
        TNumericKey Id { get; }


        /// <summary>
        /// Creates a string key based on the id.
        /// </summary>
        /// <returns>String key.</returns>
        string BuildKey();
    }



    /// <summary>
    /// Interface for storing a collection of objects of type T,
    /// such that the objects can be looked up by either the
    /// id of the object T or by creating a distinct name for the object
    /// based on it's hashcode.
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <typeparam name="TNumericKey"></typeparam>
    public interface IIndexedLookUp<TNumericKey, T> where T : IIndexedComponent<TNumericKey>
    {
        /// <summary>
        /// Gets an object based on its id.
        /// </summary>
        /// <param name="id">Id of object.</param>
        /// <returns>Object corresponding to id.</returns>