ComputedDependencies.java

package com.form.language.memory;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

import com.form.language.ast.statement.question.Question;
import com.form.language.gui.components.ComputedQuestionComponent;

public class ComputedDependencies {
    private Map<String, List<ComputedQuestionComponent>> dependingQuestions;

    public ComputedDependencies() {
    	this.dependingQuestions = new HashMap<String, List<ComputedQuestionComponent>>();
    }

    public List<ComputedQuestionComponent> get(String questionId) {
		if (dependingQuestions.containsKey(questionId)) {
		    return dependingQuestions.get(questionId);
		} else {
		    return new ArrayList<ComputedQuestionComponent>();
		}
    }

    public void add(String key, ComputedQuestionComponent value) {
		List<ComputedQuestionComponent> tempList = get(key);
		tempList.add(value);
		dependingQuestions.put(key, tempList);
    }
    
    @Override
    public String toString(){
		Set<String> keys = dependingQuestions.keySet();
		String result = "Size: " + keys.size();

		for(String id: keys){
			result += id + ": ";
			List<ComputedQuestionComponent> dependencies = dependingQuestions.get(id);
			for(ComputedQuestionComponent c: dependencies){
				Question referencedQuestion = c.getQuestion();
				result += referencedQuestion.getId();
			}
			result += "\n";
		}
		return result;
    }
}