edu.illinois.cs.cogcomp.lbjava.infer

Class Constraint

java.lang.Object

edu.illinois.cs.cogcomp.lbjava.infer.Constraint

Direct Known Subclasses:

FirstOrderConstraint, PropositionalConstraint

public abstract class Constraint
extends Object

A constraint is an expression that is either satisified or unsatisfied by its constituent classifier applications.

Author:

Nick Rizzolo

Constructor Summary

Constructors

Constructor and Description
Constraint()

Method Summary

Modifier and Type	Method and Description
abstract void	consolidateVariables(AbstractMap m) Replaces all unquantified variables with the unique copy stored as a value of the given map; also instantiates all quantified variables and stores them in the given map.
abstract boolean	evaluate() Determines whether the constraint is satisfied.
abstract Constraint[]	getChildren() Returns the children of this constraint in an array.
abstract void	runVisit(Inference infer) Calls the appropriate visit(·) method of the given Inference for this Constraint, as per the visitor pattern.

Methods inherited from class java.lang.Object

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

Constructor Detail

Constraint

public Constraint()

Method Detail

evaluate

public abstract boolean evaluate()

Determines whether the constraint is satisfied.

consolidateVariables

public abstract void consolidateVariables(AbstractMap m)

Replaces all unquantified variables with the unique copy stored as a value of the given map; also instantiates all quantified variables and stores them in the given map.

Parameters:

m - The map in which to find unique copies of the variables.

getChildren

public abstract Constraint[] getChildren()

Returns the children of this constraint in an array.

Returns:

The children of this constraint in an array.

runVisit

public abstract void runVisit(Inference infer)

Calls the appropriate visit(·) method of the given Inference for this Constraint, as per the visitor pattern.

Parameters:

infer - The inference visiting this constraint.