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POHow do I use eager Instantiation in Hibernate?
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  1. POHow do I use eager Instantiation in Hibernate?
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    copied!<pre><code>&lt;!-- Clasa Proiect--&gt; &lt;class catalog="tema3" name="com.tema3.tables.Proiect" table="proiect" lazy="false"&gt; &lt;id column="proiect_id" name="id"&gt; &lt;generator class="native"/&gt; &lt;/id&gt; &lt;property name="nume" type="text" /&gt; &lt;set name="itemList" table="proiect_item" fetch="select"&gt; &lt;key column="proiect_id"/&gt; &lt;many-to-many column="item_id" unique="true" class="com.tema3.tables.Item"/&gt; &lt;/set&gt; &lt;/class&gt; &lt;/class&gt; </code></pre> <p>that is my mapping class.<br> the code in wich i call an instantiation is :</p> <pre><code>Session session = HibernateUtil.getSessionFactory().getCurrentSession(); session.beginTransaction(); Query q = session.createQuery("from Proiect"); List&lt;Proiect&gt; lists = HibernateUtil.listAndCast(q); session.getTransaction().commit(); obj = lists; </code></pre> <p>and this is listandCastMethod: </p> <pre><code>public static &lt;T&gt; List&lt;T&gt; listAndCast(Query q) { @SuppressWarnings("unchecked") List list = q.list(); return list; } </code></pre> <p>And i keep geting a : </p> <pre><code>May 2, 2011 4:38:03 PM org.hibernate.LazyInitializationException &lt;init&gt; SEVERE: failed to lazily initialize a collection of role: com.tema3.tables.Proiect.itemList, no session or session was closed org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.tema3.tables.Proiect.itemList, no session or session was closed at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:358) </code></pre> <p>but the thing is that the fields of Proiect class are populated except the Items set where i get this exception, but i want the items set to be populated.How can i do that? </p>
 

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