Module org.maxicp

Package org.maxicp.modeling

Class DecisionVarCollector

java.lang.Object

org.maxicp.modeling.DecisionVarCollector

public class DecisionVarCollector
extends Object

Walks the full constraint / expression graph of a ModelDispatcher and collects candidate decision variables (IntExpression and IntervalVar).

Results are deduplicated by identity, preserving first-seen order.

See Also:

• DecisionVarsProvider

Method Summary

Modifier and Type	Method	Description
static List<IntExpression>	collect(ModelDispatcher model)	Collects all candidate integer/boolean decision variables inferred from the model's constraint graph.
static List<IntExpression>	collectAllIntVars(ModelDispatcher model, Objective objective)	Collects all integer/boolean variables relevant for black-box search on the model, starting with primary decision variables from collect(ModelDispatcher), followed by any leaf IntVar in the objective and any remaining registered IntVar on the ModelDispatcher.
static List<IntervalVar>	collectIntervals(ModelDispatcher model)	Collects all IntervalVar instances from the model's constraint graph and registered interval variables.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

collect

public static List<IntExpression> collect(ModelDispatcher model)

Collects all candidate integer/boolean decision variables inferred from the model's constraint graph.

Parameters:

model - the model to inspect

Returns:

ordered, identity-deduplicated, unmodifiable list of decision variables

collectAllIntVars

public static List<IntExpression> collectAllIntVars(ModelDispatcher model,
 Objective objective)

Collects all integer/boolean variables relevant for black-box search on the model, starting with primary decision variables from collect(ModelDispatcher), followed by any leaf IntVar in the objective and any remaining registered IntVar on the ModelDispatcher.

Parameters:

model - the model to inspect

objective - optional objective

Returns:

ordered, identity-deduplicated, unmodifiable list of integer variables

collectIntervals

public static List<IntervalVar> collectIntervals(ModelDispatcher model)

Collects all IntervalVar instances from the model's constraint graph and registered interval variables.

Parameters:

model - the model to inspect

Returns:

ordered, identity-deduplicated, unmodifiable list of interval variables