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POIs this approach for many-to-many mapping possible in Hibernate?
 

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    <p>I've got three tables: <strong>item</strong>, <strong>node</strong> and <strong>item_node</strong> as linking table, which of course contains IDs of item and node. </p> <p>Can I map the linking table (<strong>item_node</strong>) in such a way that corresponding class ItemNode holds somehow references to Item and Node classes? Is there any known practice for mapping link tables in m:n relationships? </p> <p>I would imagine something like this:</p> <pre><code>&lt;class name="test.model.ItemNode" table="ITEM_NODE"&gt; &lt;composite-id name="ID" class="test.model.INCompID"&gt; &lt;key-property name="item" column="ITEM_ID" /&gt; &lt;key-property name="node" column="NODE_ID"/&gt; &lt;/composite-id&gt; &lt;/class&gt; </code></pre> <p>where <strong>INCompID</strong> is class for composite ID:</p> <pre><code>public class INCompID { private Item item; private Node node; //getters, setters and overriden //equals() and hashCode() methodes } </code></pre> <p><strong>Item</strong> and <strong>Node</strong> are already mapped and working properly by themselves. </p> <p>I know that this is not usual approach for dealing with many-to many relationships, but I'm having quite annoying problem with standard set/bag-based approach, because of the lousy lazy initialization exception, and there is no way to load these collections eagerly, because they would contain enormous amount of data (hundreds of thousands of rows in DB tables).<br> Spring AOP is used for transaction management. OpenSessionInViewFilter/Interceptor doesn't seem to be helpful for this particular problem either, so...</p>
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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