Добрый вечер! Делаю BaseDao ... есть вот такой интерфейс: | Код |
package com.dao;
import java.io.Serializable;
import java.util.List;
import org.hibernate.criterion.Criterion;
import org.hibernate.criterion.ProjectionList;
public interface BaseDao<T extends Serializable> extends Serializable {
void delete(T entity);
T get(Serializable id);
List<T> list();
List<T> listOrderedAsk(String propertyName);
List<T> listOrderedDesc(String propertyName);
void merge(T entity);
void refresh(T entity);
void saveOrUpdate(T entity);
}
|
Есть класс который реализует данный интерфейс: | Код |
package com.dao.impl;
import java.io.Serializable;
import java.util.List;
import org.hibernate.Criteria;
import org.hibernate.criterion.Order;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import org.springframework.transaction.annotation.Transactional;
import com.dao.BaseDao;
public abstract class BaseDaoImpl<T extends Serializable> extends HibernateDaoSupport
implements BaseDao<T> {
/**
*
*/
private static final long serialVersionUID = -787835217993731067L;
@SuppressWarnings("unchecked")
final Class entityClass;
@SuppressWarnings("unchecked")
public BaseDaoImpl(Class entityClass) {
this.entityClass = entityClass;
}
@Transactional(readOnly = false)
public void delete(T entity) {
getHibernateTemplate().delete(entity);
getHibernateTemplate().flush();
}
@SuppressWarnings("unchecked")
public T get(Serializable id) {
return (T) getHibernateTemplate().get(entityClass, id);
}
@SuppressWarnings("unchecked")
public List<T> list() {
return getSessionFactory().getCurrentSession().createCriteria(entityClass).list();
}
@SuppressWarnings("unchecked")
public List<T> listOrderedAsk(String propertyName) {
Criteria criteria = getSession().createCriteria(entityClass);
criteria.addOrder(Order.asc(propertyName));
return criteria.list();
}
@SuppressWarnings("unchecked")
public List<T> listOrderedDesc(String propertyName) {
Criteria criteria = getSession().createCriteria(entityClass);
criteria.addOrder(Order.desc(propertyName));
return criteria.list();
}
@Transactional(readOnly = false)
public void merge(T entity) {
getHibernateTemplate().merge(entity);
getHibernateTemplate().flush();
}
public void refresh(T entity) {
getHibernateTemplate().refresh(entity);
}
@Transactional(readOnly = false)
public void saveOrUpdate(T entity) {
getHibernateTemplate().saveOrUpdate(entity);
getHibernateTemplate().flush();
}
}
|
Есть xml в котором объявлен этот baseDao: | Код |
<bean id="baseDao"
class="com.dao.impl.BaseDaoImpl" >
<property name="sessionFactory" ref="sessionFactory" />
</bean>
|
При запуске Томкета ругается вот таким: | Код |
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'baseDao' defined in ServletContext resource [/WEB-
INF/classes/config/spring/beans/beans.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could
not instantiate bean class [com.dao.impl.BaseDaoImpl]: Is it an abstract class?; nested exception is java.lang.InstantiationException
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:965)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:911)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:485)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:276)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:197)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4681)
at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5184)
at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5179)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:680)
Caused by: org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.dao.impl.BaseDaoImpl]: Is it an abstract class?;
nested exception is java.lang.InstantiationException
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:129)
|
По коду естественно есть множество наследников от этого класса ... В проекте пытаюсь связать JSF + Spring + Hibernate. В чем я ошибся ?) Это сообщение отредактировал(а) 4epT - 13.8.2011, 21:33 |
BaseDao Hibernate 
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