public bool Remove(Guid pluginId)
{
PluginRequirement req = Find(pluginId) as PluginRequirement;
if (req != null)
{
Debug.Assert(req.Holder == this);
if (!CanChange(ChangeStatus.Delete, req.PluginId, req.Requirement))
{
return(false);
}
if (_first == req)
{
_first = req.NextElement;
}
else
{
this.First(r => r.NextElement == req).NextElement = req.NextElement;
}
req.Holder = null;
--_count;
Change(ChangeStatus.Delete, req.PluginId, req.Requirement);
}
return(true);
}
public IEnumerator <PluginRequirement> GetEnumerator()
{
PluginRequirement e = _first;
while (e != null)
{
yield return(e);
e = e.NextElement;
}
}
public bool Clear()
{
if (!CanChange(ChangeStatus.ContainerClear, Guid.Empty, RunningRequirement.Optional))
{
return(false);
}
foreach (PluginRequirement r in this)
{
r.Holder = null;
}
_first = null;
_count = 0;
Change(ChangeStatus.ContainerClear, Guid.Empty, RunningRequirement.Optional);
return(true);
}
public PluginRequirement AddOrSet( Guid pluginID, RunningRequirement requirement )
{
PluginRequirement req = this.FirstOrDefault( r => r.PluginId == pluginID );
if( req != null )
{
if( req.Requirement != requirement && CanChange( ChangeStatus.Update, pluginID, requirement ) )
{
req.Requirement = requirement;
Change( ChangeStatus.Update, pluginID, requirement );
}
}
else if( CanChange( ChangeStatus.Add, pluginID, requirement ) )
{
req = new PluginRequirement( this, pluginID, requirement );
req.NextElement = _first;
_first = req;
_count++;
Change( ChangeStatus.Add, pluginID, requirement );
}
return req;
}
public PluginRequirement AddOrSet(Guid pluginID, RunningRequirement requirement)
{
PluginRequirement req = this.FirstOrDefault(r => r.PluginId == pluginID);
if (req != null)
{
if (req.Requirement != requirement && CanChange(ChangeStatus.Update, pluginID, requirement))
{
req.Requirement = requirement;
Change(ChangeStatus.Update, pluginID, requirement);
}
}
else if (CanChange(ChangeStatus.Add, pluginID, requirement))
{
req = new PluginRequirement(this, pluginID, requirement);
req.NextElement = _first;
_first = req;
_count++;
Change(ChangeStatus.Add, pluginID, requirement);
}
return(req);
}
public bool Remove( Guid pluginId )
{
PluginRequirement req = Find( pluginId ) as PluginRequirement;
if( req != null )
{
Debug.Assert( req.Holder == this );
if( !CanChange( ChangeStatus.Delete, req.PluginId, req.Requirement ) ) return false;
if( _first == req ) _first = req.NextElement;
else this.First( r => r.NextElement == req ).NextElement = req.NextElement;
req.Holder = null;
--_count;
Change( ChangeStatus.Delete, req.PluginId, req.Requirement );
}
return true;
}
public bool Clear()
{
if( !CanChange( ChangeStatus.ContainerClear, Guid.Empty, RunningRequirement.Optional ) ) return false;
foreach( PluginRequirement r in this ) r.Holder = null;
_first = null;
_count = 0;
Change( ChangeStatus.ContainerClear, Guid.Empty, RunningRequirement.Optional );
return true;
}
public bool Contains(object item)
{
PluginRequirement e = item as PluginRequirement;
return(e != null ? e.Holder == this : false);
}