///////////////////////////////////////////////////////////
//  Document.cs
//  Implementation of the Class Document
//  Generated by Enterprise Architect
//  Created on:      28-May-2004 1:21:49 PM
//  Original author: Joyce
///////////////////////////////////////////////////////////




using System;
using System.Data;
using CSLA.Data;
using CSLA;//using CSLA;


namespace GZTW.AyaNova.BLL {
	[Serializable]
	public class Document : BusinessBase {

		private Guid mID;
		private SmartDate mCreated;
		private SmartDate mModified;
		private Guid mCreator;
		private Guid mModifier;
		/// <summary>
		/// Calculated checksum of the data contained in the business object to handle mult-
		/// user concurrency
		/// </summary>
		private long mOriginalCheckSum;
		private string mNotes;
		/// <summary>
		/// Binary array of bytes stored in the database as an image field
		/// </summary>
		private byte mDocumentData;
		/// <summary>
		/// original file name and extension
		/// </summary>
		private string mFileName;
		/// <summary>
		/// if null than is a actual document stored within the database
		/// if not null, is a redirect to a document at a specific location outside the
		/// database (i.e webpage, file on server, local directory)
		/// </summary>
		private string mURL;

		/// <summary>
		/// User friendly name of document
		/// </summary>
		private string mName;



		~Document(){

		}

		/// <summary>
		/// Private constructor to prevent direct instantiation
		/// </summary>
		private Document()
		{
			mID=Guid.NewGuid();
			mCreated=new SmartDate();
			mModified=new SmartDate();
			
		}

		/// <summary>
		/// original file name and extension
		/// </summary>
		public string FileName {
			get{
				return mFileName;
			}
			set{
				mFileName = value;
			}
		}

		/// <summary>
		/// user friendly name
		/// </summary>
		public string Name 
		{
			get
			{
				return mName;
			}
			set
			{
				mName = value;
			}
		}

		public string Notes {
			get{
				return mNotes;
			}
			set{
				mNotes = value;
			}
		}

		/// <summary>
		/// Binary array of bytes stored in the database as an image field
		/// </summary>
		public byte DocumentData {
			get{
				return mDocumentData;
			}
			set{
				mDocumentData = value;
			}
		}

		/// <summary>
		/// if null than is a actual document stored within the database
		/// if not null, is a redirect to a document at a specific location outside the
		/// database (i.e webpage, file on server, local directory)
		/// </summary>
		public string URL {
			get{
				return mURL;
			}
			set{
				mURL = value;
			}
		}

		public override string ToString(){
			return "Document:" + mName + mID.ToString();

		}

		/// 
		/// <param name="obj"></param>
		public override bool Equals(Object obj)
		{
			if ( obj == null || GetType ( ) != obj.GetType ( ) ) return false;
			Document c=(Document)obj;
			return mID==c.mID;

		}

		public override int GetHashCode()
		{
			return mID.GetHashCode();

		}

		public static Document NewItem(){
return (Document)DataPortal.Create(new Criteria(Guid.Empty));
		}

		/// 
		/// <param name="_ID">Client Guid</param>
		public static Document GetItem(Guid _ID){
return (Document)DataPortal.Fetch(new Criteria(_ID));
		}

		#region criteria
		/// <summary>
		/// Criteria for identifying existing object
		/// </summary>
		[Serializable]
			private class Criteria
		{
			public Guid ID;
			public Criteria(Guid _ID)
			{
				ID=_ID;

			}
			

		}
		#endregion
		/// <summary>
		/// Delete Document
		/// Rules:
		/// - can't delete if used anywhere in database
		/// </summary>
		/// <param name="_ID">Client GUID</param>
		public static void DeleteItem(Guid _ID)
		{

		}

		/// <summary>
		/// Called by DataPortal so that we can set defaults as needed Would probably do a
		/// lookup from the db for default values in a more complete version
		/// </summary>
		/// <param name="Criteria"></param>
		protected override void DataPortal_Create(object Criteria){

		}

		/// 
		/// <param name="Criteria"></param>
		protected override void DataPortal_Fetch(object Criteria){

		}

		/// <summary>
		/// Called by DataPortal to delete/add/update data into the database
		/// </summary>
		protected override void DataPortal_Update(){

		}

		/// <summary>
		/// Remove a Document record from the database but only if you are an
		/// administrator
		/// </summary>
		/// <param name="Criteria"></param>
		protected override void DataPortal_Delete(object Criteria){

		}

		/// <summary>
		/// Get internal id number Read only property because it's set internally, not
		/// externally
		/// </summary>
		public Guid ID {
			get{
				return mID;
			}
		}

		/// <summary>
		/// Get created date
		/// Rules:
		/// - read-only
		/// </summary>
		public string Created {
			get{
				return mCreated.Text;
			}
		}

		/// <summary>
		/// Get modified date
		/// Rules:
		/// - read-only
		/// </summary>
		public string Modified {
			get{
				return mModified.Text;
			}
		}

		/// <summary>
		/// Get user record ID of person who created this record
		/// Rules:
		/// - read-only
		/// </summary>
		public Guid Creator {
			get{
				return mCreator;
			}
		}

		/// <summary>
		/// Get user ID of person who modified this record
		/// Rules:
		/// - read-only
		/// </summary>
		public Guid Modifier {
			get{
				return mModifier;
			}
		}

	}//end Document

}//end namespace GZTW.AyaNova.BLL