public override IEnumerable <ItemInfo> GetItems(ItemContainerInfo container)
{
// I wouldn't so aggressively store the child items but calling Get-ChildItem cmdlet
// checks multiple times the existence of a "*" child. Because this triggers the
// children retrieval I'd better cache them. The cache stores resolved SharePoint
// objects by their path. I could adapt the cache to accommodate the collections of
// children too but it was easier to utilize an internal property in the parent web
// instance, which even performs better.
if (container == null)
{
throw new ArgumentNullException("container");
}
var list = container as ListInfo;
var folder = container as FolderInfo;
var items = list != null ? list.ChildItems : folder.ChildItems;
if (items == null || !Cache.Check())
{
items = GetItemsDirectly(container);
if (list != null)
{
list.ChildItems = items;
}
else
{
folder.ChildItems = items;
}
}
return(items);
}
protected override IEnumerable <ListInfo> GetAllLists(WebInfo web)
{
// The cache stores resolved SharePoint objects by their path. I could adapt the
// cache to accommodate the collections of children too but it was easier to utilize
// an internal property in the parent web instance, which even performs better.
if (web.Lists == null || !Cache.Check())
{
web.Lists = GetAllListsDirectly(web);
}
return(web.Lists);
}
// Implementation of the rest of the NavigatingConnector interface.
public override IEnumerable <WebInfo> GetWebs(WebInfo web)
{
if (web == null)
{
throw new ArgumentNullException("web");
}
// I wouldn't so aggressively store the child webs but calling Get-ChildItem cmdlet
// checks multiple times the existence of a "*" child. Because this triggers the
// children retrieval I'd better cache them. The cache stores resolved SharePoint
// objects by their path. I could adapt the cache to accommodate the collections of
// children too but it was easier to utilize an internal property in the parent web
// instance, which even performs better.
if (web.Webs == null || !Cache.Check())
{
web.Webs = GetWebsDirectly(web);
}
return(web.Webs);
}