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POExtend class from another extended Parametrized Generic class
 

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  1. POExtend class from another extended Parametrized Generic class
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    <p>I have a genericService support classes ( genericService, GenericServiceImpl, GenericDao,GenericHibernateDao) for generic service,dao layer. </p> <p>Normaly it works fine, When i extend any type parametrized service from abstract generic services.When i extend this extended services in different service it gives:</p> <p>Caused by: java.lang.ClassCastException: java.lang.Class cannot be cast to java.lang.reflect.ParameterizedType</p> <p>error.</p> <p>My GEnericHibernateDao:</p> <p>@Transactional public abstract class GenericHibernateDaoSupport extends HibernateDaoSupport implements GenericDaoTemplate { private Class type;</p> <pre><code>public GenericHibernateDaoSupport() { this.type = (Class&lt;T&gt;) ((ParameterizedType) getClass().getGenericSuperclass()).getActualTypeArguments()[0]; } @Autowired @Qualifier(value = "productSessionFactory") public void bindSessionFactory(SessionFactory sessionFactory) { setSessionFactory(sessionFactory); } public Class&lt;T&gt; getType() { return type; } public void setType(Class&lt;T&gt; type) { this.type = type; } protected Session getCurrentSession() { return getHibernateTemplate().getSessionFactory().getCurrentSession(); } public ID persist(T newInstance) { return (ID) getHibernateTemplate().save(newInstance); } public void update(T transientObject) { getHibernateTemplate().update(transientObject); } </code></pre> <p>Here is my standart extended HibernateDao class:</p> <pre><code>@Repository public class StandadHibernateDao extends standardHibernateDaoSupport&lt;Standard, Long&gt; implements StandardDao { </code></pre> <p>Above extend operation works fine, But when i tried something like this:</p> <pre><code>@Repository public class ExtendStandardGatewayHibernateDao extends StandadHibernateDao implements ExtendedStandardDao { </code></pre> <p>it throws : </p> <p>Caused by: java.lang.ClassCastException: java.lang.Class cannot be cast to java.lang.reflect.ParameterizedType.</p> <p>Do you have any idea?</p>
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    1. USerhanasikoglu
    1. USerhanasikoglu
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    1. COis there any idea?
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      1. USerhanasikoglu
    2. COhttp://stackoverflow.com/questions/11067512/java-lang-class-cannot-be-cast-to-java-lang-reflect-parameterizedtype this link helps maybe
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      1. POExtend class from another extended Parametrized Generic class
      1. USfatih tekin
 

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