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POAutowire a collection
 

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    <p>Most of you probably will say that I should use google for this problem, since it's quite simple, but I can't find a truly correct solution that works.</p> <p>I have two session-scoped models: <code>Playlist</code> and <code>Track</code>. As you can guess, playlist contains a list of tracks:</p> <pre><code>@Component public class Playlist { String name; List&lt;Track&gt; tracklist; @Component public class Track { int duration; String artist; </code></pre> <p>I use <code>@Autowired</code> annotation in controllers to get the playlist. In the first controller I set the attributes of Playlist, in the second one I get them. Everything works fine with the <code>name</code> attribute of Playlist, but <code>tracklist</code> is null. I know that I must use something like <code>@Resource</code> or <code>@Qualifier</code>, but I don't understand how to make this annotations works. Simply writing</p> <pre><code>@Resource private List&lt;Track&gt; tracks; </code></pre> <p>does not seems to work. In my <code>servlet-context.xml</code> the two beans are declared like this:</p> <pre><code>&lt;bean id="track" class="com.foo.bar.models.Track" scope="session"&gt; &lt;aop:scoped-proxy/&gt; &lt;/bean&gt; &lt;bean id="playlist" class="com.foo.bar.models.Playlist" scope="session"&gt; &lt;aop:scoped-proxy/&gt; &lt;/bean&gt; </code></pre> <p>I've already look this <a href="https://stackoverflow.com/questions/6267138/spring-autowire-a-list">Spring autowire a list</a> but did not help me, since tracks are not declared via .xml but setted in a controller.</p>
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    1. COI fail to see the point in declaring track as a session-scoped bean. You don't store one track in session, you store a playlist. So each time you need the track list, just get the playlist from the session, and iterate through the list. The list is null because you never initialized it. Initialize it to `new ArrayList<Track>()`, since it's probably empty initially.
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    2. COObviously in the first controller I initialize the List and fill it. But when i try to get it from another controller (after calling the first one) the list contains just one track with all fields null. This seems to be quite strange
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    3. CORemove the @Resource annotation on tracks and don't configure Track as a component. And show us your code.
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