disposeManagedDSXs method
Implementation
@override
int disposeManagedDSXs() {
var managedDSXs = _managedDSXs;
if (managedDSXs == null) return 0;
_managedDSXs = null;
for (var dsx in managedDSXs) {
dsx.dispose();
}
return managedDSXs.length;
}