2014-12-14-repository-pattern-sharepoint_001.cs

public class SSOMRepositoryBase
{
  #region Constructor

  public SSOMRepositoryBase(string contextUrl)
  {
	// Set the Context Url 
	this.ContextUrl = contextUrl;
  }

  #endregion

  #region Properties

  internal string ContextUrl { get; set; }

  #endregion

  #region Methods

  #region Read

  internal List GetItems(string list, SPQuery query, Func<SPListItem, T> convertAction)
  {
	// Check if list name is not empty
	if (string.IsNullOrEmpty(list))
	{
		return new List();
	}

	List resultSet = null;
	using (SPSite site = new SPSite(this.ContextUrl))
	{
          using (SPWeb web = site.OpenWeb())
	  {
	    SPList spList = web.Lists.TryGetList(list);
	    SPListItemCollection listItems = query == null ? spList.Items : spList.GetItems(query);

	    if (listItems != null)
	    {
	        resultSet = listItems.Cast().Select(x => convertAction.Invoke(x)).ToList();
	    }
            else
            {
	         resultSet = new List();
	    }
	  }
	}

	return resultSet;
  }

  #endregion Read

  #endregion
}