RuntimeQuestion.java

package nl.uva.sc.encoders.qlruntime.model;

import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import java.util.List;

import nl.uva.sc.encoders.ql.ast.expression.Expression;
import nl.uva.sc.encoders.ql.ast.statement.Question;
import nl.uva.sc.encoders.qlruntime.model.value.Value;

public class RuntimeQuestion {

	private final PropertyChangeSupport pcs = new PropertyChangeSupport(this);

	private final Question question;

	private final Expression condition;

	private Value value;

	public RuntimeQuestion(Question question, Value value) {
		this(question, null, value);
	}

	public RuntimeQuestion(Question question, Expression condition, Value value) {
		this.question = question;
		this.condition = condition;
		this.value = value;
	}

	public Expression getCondition() {
		return condition;
	}

	public Value getValue() {
		return value;
	}

	public void setValue(Value value) {
		Object old = this.value;
		this.value = value;
		pcs.firePropertyChange("value", old, value);
	}

	@Override
	public String toString() {
		return question + " " + value;
	}

	public Question getQuestion() {
		return question;
	}

	public void addPropertyChangeListener(PropertyChangeListener listener) {
		this.pcs.addPropertyChangeListener(listener);
	}

	public void removePropertyChangeListener(PropertyChangeListener listener) {
		this.pcs.removePropertyChangeListener(listener);
	}

	public static RuntimeQuestion getRuntimeQuestion(String name, List<RuntimeQuestion> runtimeQuestions) {
		for (RuntimeQuestion runtimeQuestion : runtimeQuestions) {
			Question question = runtimeQuestion.getQuestion();
			if (questionHasName(question, name)) {
				return runtimeQuestion;
			}
		}
		return null;
	}

	private static boolean questionHasName(Question question, String name) {
		return name.equals(question.getName());
	}
}