/// <summary>
/// Add an object to the cache, according to its type.
/// </summary>
/// <param name="oSubj"></param>
/// <returns></returns>
public virtual bool Add(Object oSubj)
{
Type subjtype = oSubj.GetType();
TypeList list = GetTypeList(subjtype);
if (null == list)
{
list = new TypeList();
list.TypeName = subjtype.AssemblyQualifiedName;
Contents.Add(list);
}
list.Instances.Add(oSubj);
return(true);
}
/// <summary>
/// Makes a copy of the RepositoryCache. Objects inside the cache are not copied, only the cache's TypeLists.
/// Thus, modifying an object in the original RepositoryCache will affect the object in the copy.
/// </summary>
/// <returns></returns>
public virtual RepositoryCache Copy()
{
RepositoryCache outCache = new RepositoryCache();
foreach (TypeList list in Contents)
{
TypeList newList = new TypeList();
newList.TypeName = list.TypeName;
foreach (object item in list.Instances)
{
newList.Instances.Add(item);
}
}
return(outCache);
}
/// <summary>
/// Does the repository contain the specified object?
/// </summary>
/// <param name="oSubj"></param>
/// <returns></returns>
public virtual bool Contains(Object oSubj)
{
Type subjtype = oSubj.GetType();
TypeList list = GetTypeList(subjtype);
if (null == list)
{
return(false);
}
foreach (Object curobj in list.Instances)
{
if (curobj.Equals(oSubj))
{
return(true);
}
}
return(false);
}
public virtual List <T> GetInstances <T>()
{
TypeList tl = GetTypeList(typeof(T));
if (tl == null)
{
return(new List <T>());
}
List <T> outList = tl.Instances.Cast <T>().ToList();
if (outList == null)
{
return(new List <T>());
}
return(outList);
}
/// <summary>
/// Get all instances of a type known to the repository.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <returns></returns>
public virtual List <Object> GetInstances(Type oType)
{
List <Object> deflist = new List <Object>();
try
{
TypeList tl = GetTypeList(oType);
if (null == tl)
{
return(deflist);
}
deflist = tl.Instances;
return(deflist);
}
catch (Exception exc)
{
String fn = MethodBase.GetCurrentMethod().Name;
Util.HandleExc(this, fn, exc);
return(deflist);
}
}
/// <summary>
/// Remove a single object, regardless of type.
/// </summary>
/// <param name="oSubj"></param>
/// <returns></returns>
public virtual bool Remove(Object oSubj)
{
string fn = "RepositoryCache.Remove()";
try
{
Type subjtype = oSubj.GetType();
TypeList list = GetTypeList(subjtype);
if (null == list)
{
Util.HandleAppErr(this, fn, "Instance " + oSubj.ToString() + " not found");
return(false);
}
list.Instances.Remove(oSubj);
return(true);
}
catch (Exception exc)
{
Util.HandleExc(this, fn, exc);
return(false);
}
}