Inventory.java

package com.boutiquelab.ooad.ch1;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;


public class Inventory {
	private List<Guitar> guitars;
	
	public Inventory() {
		guitars = new LinkedList<Guitar>();
	}
	
	public void addGuitar(String serialNumber, double price, GuitarSpec spec) {
		Guitar guitar = new Guitar(serialNumber, price, spec);
		guitars.add(guitar);
	}
	
	public Guitar getGuitar(String serialNumber) {
		for (Iterator<Guitar> i = guitars.iterator(); i.hasNext(); ) {
			Guitar guitar = (Guitar)i.next();
			if (guitar.getSerialNumber().equals(serialNumber)) {
				return guitar;
			}
		}
		return null;
	}
	
	public List<Guitar> search(GuitarSpec searchSpec) {
		List<Guitar> matchingGuitars = new LinkedList<Guitar>();
		for (Iterator<Guitar> i = guitars.iterator(); i.hasNext(); ) {
			Guitar guitar = (Guitar)i.next();
			if (guitar.getSpec().matches(searchSpec)) {
				matchingGuitars.add(guitar);
			}
		}
		return matchingGuitars;
	}
}