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POWhat's the trick to have my EventListeners trigger for my @ElementCollection properties?
 

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  1. POWhat's the trick to have my EventListeners trigger for my @ElementCollection properties?
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    <p>I've got working my JPA events (postUpdate) and they are triggering correctly when I update a property on my entity except for the ones that are mapped as @ElementCollection.</p> <p>Is this a restriction? A configuration option?</p> <p>Here is part of my entity</p> <pre><code>@Entity @Inheritance(strategy = InheritanceType.JOINED) public class Pckg { @Id @GeneratedValue(strategy = GenerationType.AUTO) private Long id; @Column(nullable = false, length = 100) private String title; @ElementCollection @CollectionTable ( name = "PckDest", joinColumns = @JoinColumn(name = "package_id", nullable = false) ) @Column(name = "destination", nullable = false, length = 150) private List&lt;String&gt; destinations; ... </code></pre> <p>In other words, if I change "title" the change is catched by my listener, but the same does NOT occur when I change "destinations"</p> <p>I'm using JPA with hibernate (4.0) as provider through spring (3.1)</p> <p>Thanks</p>
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    1. COCan you be more specific for when you say you _change "destinations"_? Are you replacing the list or modifying the list?
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    2. CO@pgreen2 thx, when I said _change_ I meant either way, an element on the list e.g `destinations.add("LA");` or just setting a new list e.g. `destinations = new ArrayList()...` then I called `EntityManager.save(xx)`. None of the above fire my `onPostUpdate()`, while doing `Pckg.setTitle("new title")` does fire my Listener correctly
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    3. COI took a brief look at the spec (http://download.oracle.com/otndocs/jcp/persistence-2.0-fr-oth-JSpec/) and nothing jumps out at me as being wrong. I did notice a couple notes about when the events occur. They could happen when the modification occurs or when the change is flushed. Also, the spec doesn't state what should happen if an entity is modified and then removed or added and then modified. It doesn't sound like these edge cases are your problem. I don't have a test bed setup. Can you post your listener code and test code?
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