public void ReadFromVectorsEfficiencyComparison(FdoCache fcTLP)
{
LangProject lp = fcTLP.LangProject;
//bad
for (int i = 1; i < lp.OverlaysOC.Count; i++) // must create an FdoOwnColVector each time!
{
CmOverlay o = new CmOverlay(fcTLP, lp.OverlaysOC.hvoArray[i]); // must create an FdoOwnColVector each time!
Console.WriteLine(o.Name);
}
//better
int[] hvos = lp.OverlaysOC.hvoArray; // get the vector just once
for (int i = 1; i < hvos.Length; i++)
{
CmOverlay o = new CmOverlay(fcTLP, hvos[i]);
Console.WriteLine(o.Name);
}
//best: get vector just once, and all of the overlays will be cached at once
foreach (CmOverlay o in lp.OverlaysOC)
{
Console.WriteLine(o.Name);
}
}
public void ModifyVectors(LangProject lp)
{
//add a new item to an owned sequence attribute
CmAnthroItem a = (CmAnthroItem)lp.AnthroListOA.PossibilitiesOS.Append(new CmAnthroItem());
//add a new item to an owned collection attribute
CmOverlay overlay = (CmOverlay)lp.OverlaysOC.Add(new CmOverlay());
//add a new item to a reference collection attribute
CmPossibility position = (CmPossibility)lp.PositionsOA.PossibilitiesOS [0];
CmPerson person = (CmPerson)lp.PeopleOA.PossibilitiesOS[0];
person.PositionsRC.Add(position);
//move the last item in a sequence to the beginning
FdoOwnSeqVector positions = lp.PositionsOA.PossibilitiesOS;
position = (CmPossibility)positions[positions.Count - 1];
positions.InsertAt(position, 0);
//do the same, without instantiating the object we're moving
int hvo = positions.hvoArray[positions.Count - 1];
positions.InsertAt(hvo, 0);
}
public void ReadFromVectorsEfficiencyComparison(FdoCache fcTLP)
{
LangProject lp = fcTLP.LangProject;
//bad
for(int i = 1; i< lp.OverlaysOC.Count; i++) // must create an FdoOwnColVector each time!
{
CmOverlay o = new CmOverlay(fcTLP,lp.OverlaysOC.hvoArray[i]); // must create an FdoOwnColVector each time!
Console.WriteLine(o.Name);
}
//better
int[] hvos = lp.OverlaysOC.hvoArray; // get the vector just once
for(int i = 1; i<hvos.Length; i++)
{
CmOverlay o = new CmOverlay(fcTLP,hvos[i]);
Console.WriteLine(o.Name);
}
//best: get vector just once, and all of the overlays will be cached at once
foreach(CmOverlay o in lp.OverlaysOC)
{
Console.WriteLine(o.Name);
}
}