public static IAssociationListener Remove(IAssociationListener l, IAssociationListener oldl)
{
if (l == oldl || l == null) {
return null;
}
if (l is Multicaster) {
return ((Multicaster) l).Remove(oldl);
}
return null;
}
public static IAssociationListener add(IAssociationListener a, IAssociationListener b)
{
if (a == null) {
return b;
}
if (b == null) {
return a;
}
return new Multicaster(a, b);
}
public void RemoveAssociationListener(IAssociationListener l)
{
fsm.RemoveAssociationListener(l);
}
public void AddAssociationListener(IAssociationListener l)
{
fsm.AddAssociationListener(l);
}
public Multicaster(IAssociationListener a, IAssociationListener b)
{
this.a = a;
this.b = b;
}
private IAssociationListener Remove(IAssociationListener oldl)
{
if (oldl == a) {
return b;
}
if (oldl == b) {
return a;
}
IAssociationListener a2 = Remove(a, oldl);
IAssociationListener b2 = Remove(b, oldl);
if (a2 == a && b2 == b) {
return this;
}
return add(a2, b2);
}
public void RemoveAssociationListener(IAssociationListener l)
{
lock (this) {
assocListener = Multicaster.Remove(assocListener, l);
}
}
public void AddAssociationListener(IAssociationListener l)
{
lock (this) {
assocListener = Multicaster.add(assocListener, l);
}
}
