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    <p>There are two possibilities to reuse the callback code from <code>ClassA</code> in <code>ClassB</code>:</p> <p><strong>I.</strong> The best/most elegant way is to move the whole code to a new class, say <code>MyEntityListeners</code> and then to use the <a href="http://docs.oracle.com/javaee/6/api/javax/persistence/EntityListeners.html" rel="nofollow">@EntityListeners</a> annotation on your entity classes like</p> <pre><code>@EntityListeners(class=MyEntityListeners.class) public class ClassB extends ClassA { ..... } public class MyEntityListeners { @PrePersist public void onPrePersist(Object entity) { //logic with entity (check the class of the entity or you can use `ClassA` instead of `Object`) } } </code></pre> <p>Please note that the <code>EntityListeners</code> are <a href="http://docs.jboss.org/hibernate/entitymanager/3.5/reference/en/html/listeners.html#d0e3053" rel="nofollow">inherited</a> in the subclasses from superclasses, so you do not need to do anything in <code>ClassB</code> if the EntiyListeners are already defined in <code>ClassA</code> (but you can add additional EntityListeners in ClassB, that are not in ClassA). For excluding <strong>all</strong> EntityListeners from the hierarchy you can use <a href="http://docs.oracle.com/javaee/6/api/javax/persistence/ExcludeSuperclassListeners.html" rel="nofollow">@ExcludeSuperclassListeners</a></p> <p><strong>II.</strong> If you have less callback methods and a small hierarchy tree, than you could overwrite and re-annotate every callback from <code>ClassA</code> also in <code>ClassB</code> like</p> <pre><code>... public class ClassB extends ClassA { ...... @Override @PrePersist public void myCallback() { super.myCallback(); } ...... } </code></pre>
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    1. POGeneric callback methods(@PostLoad..) for inherited entity classes - JPA EclipseLink
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    1. COUsing super is working for individual persistent of both ClassA and ClassB. But i have a doubt, generalize using EntityListener is good for me because i may use this in 'n' number of entity classes because these two methods are common for all. Now my problem is i have to pass a class instance into this callback methods(i.e MyEntityListeners) to set the column value on their respective entity.. can u suggest anything for this problem.
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    2. COThat is not a problem: you get an instance of your entity in the callback methods in `MyEntityListeners`. Also EntityListeners are inherited. See my chnaged response.
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