Save Temporary Data with Entity Framework Self-Tracking Entity

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Demo.Models.DataInterfaces;
using System.Data.Entity;
using Demo.Models.Domain;

namespace Demo.Data
{
    public class Context: DbContext, IContext
    {
        SaveTempDataWithSTEEntities _entityFrameworkContext;

        public Context()
        {
        }

        public SaveTempDataWithSTEEntities EntityFrameworkContext
        {
            get
            {
                if (_entityFrameworkContext == null)
                {
                    _entityFrameworkContext = new SaveTempDataWithSTEEntities();
                }
                return _entityFrameworkContext;
            }
        }

        public int Commit()
        {
            return _entityFrameworkContext.SaveChanges();
        }

        public void Clear()
        {
            if (_entityFrameworkContext != null)
            {
                _entityFrameworkContext.Dispose();
                _entityFrameworkContext = null;
            }
        }
    }
}