@Override
public void invoke(IObject instance, IObject... expressions) {
IConstraintNetwork network = solver.getConstraintNetwork();
instance.set(CAPACITY, expressions[0]);
INumber initial_amount = network.newReal();
instance.set(INITIAL_AMOUNT, initial_amount);
INumber final_amount = network.newReal();
instance.set(FINAL_AMOUNT, final_amount);
solver
.getCurrentNode()
.addResolver(
new IResolver() {
private boolean resolved = false;
@Override
public double getKnownCost() {
return 0;
}
@Override
public void resolve() {
assert !resolved;
network.assertFacts(
network.geq(initial_amount, network.newReal("0")),
network.leq(initial_amount, (INumber) expressions[0]),
network.geq(final_amount, network.newReal("0")),
network.leq(final_amount, (INumber) expressions[0]));
resolved = true;
}
@Override
public boolean isResolved() {
return resolved;
}
@Override
public void retract() {
assert resolved;
resolved = false;
}
});
}