/// <summary>
/// 查找或者直接创建某一特定实体类型的上下文对象。
/// </summary>
/// <param name="entityType"></param>
/// <returns></returns>
internal TypedEntityContext GetOrCreateTypeContext(Type entityType)
{
if (Disabled)
{
return(new DisabledTypedEntityContext());
}
if (this._lastContext != null && this._lastContext.EntityType == entityType)
{
return(this._lastContext);
}
TypedEntityContext res = null;
if (!this._contexts.TryGetValue(entityType, out res))
{
res = new TypedEntityContext {
EntityType = entityType
};
this._contexts.Add(entityType, res);
}
this._lastContext = res;
return(res);
}
/// <summary>
/// 查找对应实体的类型上下文
/// </summary>
/// <param name="entityType"></param>
/// <returns></returns>
internal TypedEntityContext FindTypeContext(Type entityType)
{
if (Disabled)
{
return(null);
}
if (this._lastContext != null && this._lastContext.EntityType == entityType)
{
return(this._lastContext);
}
TypedEntityContext res = null;
if (this._contexts.TryGetValue(entityType, out res))
{
this._lastContext = res;
}
return(res);
}