public static bool replaceKeyInstance <Key, Value>(this DBEngine <Key, DBElement <Key, Value> > dbEngine, Key key, DBElement <Key, Value> val)
{
if (dbEngine.containsKey(key))
{
dbEngine.saveToDb(key, val);
return(true);
}
return(false);
}
public static bool addRelationship <Key, Value>(this DBEngine <Key, DBElement <Key, Value> > dbEngine, Key key, List <Key> children)
{
DBElement <Key, Value> elem;
if (dbEngine.containsKey(key))
{
dbEngine.getValue(key, out elem);
elem.children.AddRange(children);
return(true);
}
return(false);
}
public static bool modifyMetadata <Key, Value>(this DBEngine <Key, DBElement <Key, Value> > dbEngine, Key key, string name, string description)
{
DBElement <Key, Value> elem;
if (dbEngine.containsKey(key))
{
dbEngine.getValue(key, out elem);
elem.name = name;
elem.descr = description;
return(true);
}
return(false);
}
public static List <Key> searchChildren <Key, Value>(this DBEngine <Key, DBElement <Key, Value> > dbEngine, Key key)
{
List <Key> children = new List <Key>();
DBElement <Key, Value> val;
if (dbEngine.containsKey(key))
{
dbEngine.getValue(key, out val);
foreach (var child in val.children)
{
children.Add(child);
}
return(children);
}
return(children);
}
public static bool removeRelationship <Key, Value>(this DBEngine <Key, DBElement <Key, Value> > dbEngine, Key key, List <Key> children)
{
DBElement <Key, Value> elem;
if (dbEngine.containsKey(key))
{
dbEngine.getValue(key, out elem);
foreach (var child in children)
{
if (elem.children.Contains(child))
{
elem.children.Remove(child);
}
}
return(true);
}
return(false);
}
