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POJava Spring: AnnotationSessionFactoryBean, Hibernate-Dialect AutoDetection
 

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    <p>I use the following spring application context:</p> <pre><code>&lt;!-- Hibernate session factory --&gt; &lt;bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"&gt; &lt;property name="dataSource" ref="dataSource"/&gt; &lt;property name="hibernateProperties"&gt; &lt;props&gt; &lt;!-- &lt;prop key="hibernate.dialect"&gt;${hibernate.dialect}&lt;/prop&gt; --&gt; &lt;prop key="hibernate.show_sql"&gt;${hibernate.show_sql}&lt;/prop&gt; &lt;prop key="hibernate.max_fetch_depth"&gt;${hibernate.max_fetch_depth}&lt;/prop&gt; &lt;prop key="hibernate.cache.use_second_level_cache"&gt;${hibernate.cache.use_second_level_cache}&lt;/prop&gt; &lt;prop key="hibernate.cache.use_query_cache"&gt;${hibernate.cache.use_query_cache}&lt;/prop&gt; &lt;prop key="hibernate.cache.provider_class"&gt;${hibernate.cache.provider}&lt;/prop&gt; &lt;prop key="hibernate.connection.pool_size"&gt;10&lt;/prop&gt; &lt;prop key="hibernate.jdbc.batch_size"&gt;1000&lt;/prop&gt; &lt;prop key="hibernate.bytecode.use_reflection_optimizer"&gt;true&lt;/prop&gt; &lt;/props&gt; &lt;/property&gt; &lt;property name="annotatedClasses"&gt; &lt;list&gt; ... &lt;/list&gt; &lt;/property&gt; &lt;property name="schemaUpdate" value="${hibernate.schemaUpdate}"/&gt; &lt;/bean&gt; </code></pre> <p><strong>Then problem is: Although Hibernate should support Dialect-Autodetection this code doesnt work:</strong> Uppon Application-Init the following exception is thrown:</p> <pre><code>org.hibernate.HibernateException: The dialect was not set. Set the property hibernate.dialect. at org.hibernate.dialect.Dialect.instantiateDialect(Dialect.java:256) at org.hibernate.dialect.Dialect.getDialect(Dialect.java:234) at org.hibernate.dialect.Dialect.getDialect(Dialect.java:249) at org.springframework.orm.hibernate3.LocalSessionFactoryBean$3.doInHibernate(LocalSessionFactoryBean.java:957) at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:419) at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:339) at org.springframework.orm.hibernate3.LocalSessionFactoryBean.updateDatabaseSchema(LocalSessionFactoryBean.java:953) at org.springframework.orm.hibernate3.LocalSessionFactoryBean.afterSessionFactoryCreation(LocalSessionFactoryBean.java:843) at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:213) </code></pre> <p><em>I can avoid this exception by uncommenting the hibernate.dialect property. Why do I have to do this? Why cant hibernate just autodetect the dialect like it is supposed to?</em></p> <p>I want do remove the dialect-property to solve <a href="https://stackoverflow.com/questions/1432193/java-dbunitils-spring-different-hibernate-dialect">this</a> problem.</p>
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