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PO@ElementCollection not saved by Hibernate 4.0.1
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  1. PO@ElementCollection not saved by Hibernate 4.0.1
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    copied!<p>I have class (entity) <code>A</code> which contains list of objects (entities) <code>B</code> which contains <code>Set&lt;String&gt; strings</code>.</p> <pre><code>@Entity @Table(name = "a") public class A { private int id; private List&lt;B&gt; bList; @Id @GeneratedValue(strategy = GenerationType.IDENTITY) @Column(name = "aId") public int getId() { return id; } @OneToMany(fetch = FetchType.EAGER) @JoinColumn(name = "aId", nullable = false) @Cascade({org.hibernate.annotations.CascadeType.SAVE_UPDATE}) public List&lt;B&gt; getBList() { return bList; } ... setters and other stuff } </code></pre> <hr> <pre><code>@Entity @Table(name = "b") public class B { private int id; private int aId; private Set&lt;String&gt; strings; @Id @GeneratedValue(strategy = GenerationType.IDENTITY) @Column(name = "bId") public int getId() { return id; } @ElementCollection(fetch = FetchType.EAGER) @CollectionTable(name = "b_strings", joinColumns = {@JoinColumn(name = "bId")}) @Cascade({org.hibernate.annotations.CascadeType.SAVE_UPDATE})** public Set&lt;String&gt; getStrings() { return strings; } @Column(name = "aId", insertable = false, updatable = false) public int getAId() { return aId; } ... setters and other stuff } </code></pre> <p>I create object <code>A</code> and then I try to save it:</p> <pre><code>A a = new A(); List&lt;B&gt; l = new ArrayList&lt;B&gt;(); a.setBList(l); B b = new B(); l.add(b); b.setStrings(new HashSet&lt;String&gt;()); b.getStrings().add("1"); b.getStrings().add("2"); b = new B(); l.add(b); b.setStrings(new HashSet&lt;String&gt;()); b.getStrings().add("3"); Session session = sessionFactory.openSession(); session.saveOrUpdate(a); session.close(); </code></pre> <p><code>A</code> and <code>B</code> object is saved (inserted) but set with <code>strings</code> is not saved. I'm using Spring 3.1 and Hibernate 4.0.1. Why is hibernate ignoring <code>@ElementCollection</code>? Table is created, mysql workbech shows it as readonly...</p>
 

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