public virtual IReturnVector executeFunction(Rete engine, IParameter[] params_Renamed)
{
String asrt = "";
if (params_Renamed.Length > 0)
{
Deffact fact = null;
if (params_Renamed[0].Value is Deffact)
{
fact = (Deffact)params_Renamed[0].Value;
}
else
{
Deftemplate tmpl = (Deftemplate)engine.CurrentFocus.getTemplate(params_Renamed[0].StringValue);
if (tmpl == null)
{
throw new AssertException("Deftemplate named " + params_Renamed[0].StringValue + " was not found.");
}
fact = (Deffact)tmpl.createFact((Object[])params_Renamed[1].Value, -1);
}
if (fact.hasBinding())
{
fact.resolveValues(engine, triggerFacts);
fact = fact.cloneFact();
}
try
{
engine.assertFact(fact);
// if the fact id is still -1, it means it wasn't asserted
// if it was asserted, we return the fact id, otherwise
// we return "false".
if (fact.FactId > 0)
{
asrt = fact.FactId.ToString();
}
else
{
asrt = "false";
}
}
catch (AssertException e)
{
// we should log this and output an error
asrt = "false";
}
}
else
{
asrt = "false";
}
DefaultReturnVector ret = new DefaultReturnVector();
DefaultReturnValue rv = new DefaultReturnValue(Constants.STRING_TYPE, asrt);
ret.addReturnValue(rv);
return(ret);
}
public virtual IReturnVector executeFunction(Rete engine, IParameter[] params_Renamed)
{
bool exec = false;
if (engine != null && params_Renamed != null && params_Renamed.Length >= 2 && params_Renamed[0].ObjectBinding)
{
BoundParam bp = (BoundParam)params_Renamed[0];
Deffact fact = (Deffact)bp.Fact;
try
{
// first retract the fact
engine.retractFact(fact);
// now modify the fact
SlotParam[] sp = new SlotParam[params_Renamed.Length - 1];
for (int idx = 0; idx < sp.Length; idx++)
{
IParameter p = params_Renamed[idx + 1];
if (p is SlotParam)
{
sp[idx] = (SlotParam)p;
}
}
fact.updateSlots(engine, convertToSlots(sp, fact.Deftemplate));
if (fact.hasBinding())
{
fact.resolveValues(engine, triggerFacts);
fact = fact.cloneFact();
}
// now assert the fact using the same fact-id
engine.assertFact(fact);
exec = true;
}
catch (RetractException e)
{
engine.writeMessage(e.Message);
}
catch (AssertException e)
{
engine.writeMessage(e.Message);
}
}
DefaultReturnVector rv = new DefaultReturnVector();
DefaultReturnValue rval = new DefaultReturnValue(Constants.BOOLEAN_OBJECT, exec);
rv.addReturnValue(rval);
return(rv);
}