public IDisposable Sync <T>(Dictionary <string, T> entityDic, IEnumerable <XElement> elements, IFromXmlContext ctx, Action <T, XElement> setXml)
where T : Entity, new()
{
var xmlDic = elements.ToDictionaryEx(a => a.Attribute("BpmnElementId").Value);
Synchronizer.Synchronize(
xmlDic,
entityDic,
createNew: (bpmnId, xml) =>
{
var entity = new T();
setXml(entity, xml);
entityDic.Add(bpmnId, ctx.SaveMaybe(entity));
},
removeOld: null,
merge: null);
return(new Disposable(() =>
{
Synchronizer.Synchronize(
xmlDic,
entityDic,
createNew: null,
removeOld: (bpmnId, entity) => ctx.DeleteMaybe(entity),
merge: (bpmnId, xml, entity) =>
{
setXml(entity, xml);
ctx.SaveMaybe(entity);
});
}));
}