DerivedVar.java 

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package blog;

import java.util.*;
A random variable whose value is a deterministic function of some basic variables. In this default implementation, the DerivedVar's value is given by some ArgSpec. 


public class DerivedVar implements BayesNetVar {
Creates a new DerivedVar whose value is given by argSpec. 


    public DerivedVar(ArgSpec argSpec) {
	this.argSpec = argSpec;
    }
Returns the ArgSpec that determines this variable's value. 


    public ArgSpec getArgSpec() {
	return argSpec;
    }

    public boolean isDetermined(PartialWorld w) {
	return argSpec.isDetermined(w);
    }
Returns the value of this random variable in the given world. 


    public Object getValue(PartialWorld w) {
	return argSpec.evaluate(new DefaultEvalContext(w, true));
    }
Returns the value of this random variable in the given context. 


    public Object getValue(EvalContext context) {
	return argSpec.evaluate(context);
    }

    public Set getParents(PartialWorld w) {
	ParentRecEvalContext context = new ParentRecEvalContext(w, true);
	context.pushEvaluee(this);
	argSpec.evaluate(context);
	context.popEvaluee();
	return context.getParents();
    }

    public BasicVar getFirstUninstParent(PartialWorld w) {
	ParentRecEvalContext context = new ParentRecEvalContext(w, false);
	context.pushEvaluee(this);
	argSpec.evaluate(context);
	context.popEvaluee();
	return context.getLatestUninstParent();
    }

    public void ensureDetAndSupported(InstantiatingEvalContext instantiator) {
	instantiator.pushEvaluee(this);
	argSpec.evaluate(instantiator);
	instantiator.popEvaluee();
    }

    public Timestep timestep() {
	return null;
    }
Returns the string representation of this derived variable's ArgSpec. 


    public String toString() {
	return ("DerivedVar " + argSpec.toString());
    }

    protected ArgSpec argSpec;
}

This file was generated on Tue Jun 08 17:53:36 PDT 2010 from file DerivedVar.java
by the ilog.language.tools.Hilite Java tool written by Hassan Aït-Kaci