package com.th.dao.hibernate;
import java.io.Serializable;
import java.lang.reflect.Field;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.Criteria;
import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.criterion.DetachedCriteria;
import org.hibernate.criterion.Projections;
import org.springframework.dao.DataRetrievalFailureException;
import org.springframework.orm.hibernate3.HibernateCallback;
import org.springframework.orm.hibernate3.HibernateTemplate;
import com.th.domain.Page;
/**
* This base class is prepared for subclass to do CRUD easily.
*
* @author tianheng
*/
public abstract class GenericHibernateDao<T> {
protected static final Object[] EMPTY_OBJECT_ARRAY = new Object[] {};
protected Log log = LogFactory.getLog(getClass());
private final Class<T> clazz;
protected HibernateTemplate hibernateTemplate;
/**
* Inject domain's class type in constructor.
*
* @param clazz Domain's class.
*/
public GenericHibernateDao(Class<T> clazz) {
this.clazz = clazz;
}
/**
* @spring.property name="hibernateTemplate" ref="hibernateTemplate"
*/
public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {
this.hibernateTemplate = hibernateTemplate;
}
@SuppressWarnings("unchecked")
public T query(Serializable id) {
T t = (T)hibernateTemplate.get(clazz, id);
if(t==null)
throw new DataRetrievalFailureException("Object not found.");
// it is strange that load() method return a lazy-loading proxy object
// and it may cause LazyInitializationException!
return t;
}
/**
* Default implementation of creating new domain object.
*/
public void create(T t) {
hibernateTemplate.save(t);
}
/**
* Default implementation of deleting new domain object.
*/
public void delete(T t) {
hibernateTemplate.delete(t);
}
/**
* Default implementation of updating domain object.
*/
public void update(T t) {
hibernateTemplate.update(t);
}
/**
* Do an update hql query, return the affected rows.
*
* @param updateHql Update HQL.
* @param values Parameters or null if none.
* @return The affected rows.
*/
protected int executeUpdate(final String updateHql, final Object[] values) {
HibernateCallback updateCallback = new HibernateCallback() {
public Object doInHibernate(Session session) throws HibernateException, SQLException {
Query query = session.createQuery(updateHql);
if(values!=null) {
for(int i=0; i<values.length; i++)
query.setParameter(i, values[i]);
}
return new Integer(query.executeUpdate());
}
};
return ((Integer)hibernateTemplate.execute(updateCallback)).intValue();
}
/**
* Prepared for sub-class for convenience. Query for list and also return
* total results' number.
*
* @param selectCount HQL for "select count(*) from ..." and should return a Long.
* @param select HQL for "select * from ..." and should return object list.
* @param values For prepared statements.
* @param page Page object for store page information.
*/
protected List queryForList(final String selectCount, final String select, final Object[] values, final Page page) {
Integer count = (Integer)queryForObject(selectCount, values);
page.setTotalCount(count.intValue());
if(page.isEmpty())
return Collections.EMPTY_LIST;
return queryForList(select, values, page);
}
/**
* Prepared for sub-class for convenience. Query for list but do not return
* total results' number.
*
* @param select HQL for "select * from ..." and should return object list.
* @param values For prepared statements.
* @param page Page object for store page information.
*/
protected List queryForList(final String select, final Object[] values, final Page page) {
// select:
HibernateCallback selectCallback = new HibernateCallback() {
public Object doInHibernate(Session session) {
Query query = session.createQuery(select);
if(values!=null) {
for(int i=0; i<values.length; i++)
query.setParameter(i, values[i]);
}
return query.setFirstResult(page.getFirstResult())
.setMaxResults(page.getPageSize())
.list();
}
};
return (List) hibernateTemplate.executeFind(selectCallback);
}
/**
* Prepared for sub-class for convenience. Query for unique result.
*
* @param select HQL for "select * from ..." and should return unique object.
* @param values For prepared statements.
*/
protected Object queryForObject(final String select, final Object[] values) {
HibernateCallback selectCallback = new HibernateCallback() {
public Object doInHibernate(Session session) {
Query query = session.createQuery(select);
if(values!=null) {
for(int i=0; i<values.length; i++)
query.setParameter(i, values[i]);
}
return query.uniqueResult();
}
};
return hibernateTemplate.execute(selectCallback);
}
protected Object queryForObject(final DetachedCriteria dc) {
HibernateCallback callback = new HibernateCallback() {
public Object doInHibernate(Session session) {
return dc.getExecutableCriteria(session).uniqueResult();
}
};
return hibernateTemplate.execute(callback);
}
/**
* Prepared for sub-class for convenience.
*/
protected List queryForList(final DetachedCriteria dc, final Page page) {
HibernateCallback callback = new HibernateCallback() {
public Object doInHibernate(Session session) {
Criteria c = dc.getExecutableCriteria(session);
if(page==null)
return c.list();
return PaginationCriteria.query(c, page);
}
};
return hibernateTemplate.executeFind(callback);
}
/**
* Prepared for sub-class for convenience.
*/
protected Object uniqueResult(final DetachedCriteria dc) {
HibernateCallback callback = new HibernateCallback() {
public Object doInHibernate(Session session) {
return dc.getExecutableCriteria(session).uniqueResult();
}
};
return hibernateTemplate.execute(callback);
}
}
/**
* A PaginationCriteria can execute both "select count(*)" and
* "select * from" queries, and set Page object automatically.
* This class uses reflect to remove and restore "order by" conditions.
*
* @author tianheng
*/
class PaginationCriteria {
private static Log log = LogFactory.getLog(PaginationCriteria.class);
private static Field orderEntriesField = getField(Criteria.class, "orderEntries");
public static List query(Criteria c, Page page) {
// first we must detect if any Order defined:
// Hibernate code: private List orderEntries = new ArrayList();
List _old_orderEntries = (List)getFieldValue(orderEntriesField, c);
boolean
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hibernate+spring+junit+ant+mysql
共167个文件
html:46个
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1星 需积分: 9 16 下载量 125 浏览量
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hibernate+spring+junit+ant+mysql 小实例。能够当模板
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hibernate+spring+junit+ant+mysql (167个子文件)
GenericHibernateDao.class 5KB
PaginationCriteria.class 3KB
ThController.class 3KB
Th1Controller.class 3KB
test111.class 2KB
LinkDaoImpl.class 2KB
GenericHibernateDao$2.class 2KB
Page.class 2KB
GenericHibernateDao$5.class 1KB
GenericHibernateDao$1.class 1KB
GenericHibernateDao$3.class 1KB
CodeFilter.class 1KB
Links.class 1KB
SearchLinkResult.class 1KB
GenericHibernateDao$4.class 1KB
GenericHibernateDao$6.class 1KB
LinkServiceImpl.class 1KB
GenericDao.class 382B
LinkDao.class 327B
LinkService.class 224B
.classpath 1KB
subModal.css 1KB
close.gif 609B
inherit.gif 57B
GenericHibernateDao.html 24KB
LinkDaoImpl.html 17KB
Page.html 15KB
Links.html 14KB
Th1Controller.html 14KB
ThController.html 14KB
LinkServiceImpl.html 14KB
SearchLinkResult.html 14KB
test111.html 11KB
CodeFilter.html 11KB
GenericDao.html 10KB
LinkDao.html 10KB
LinkService.html 9KB
overview-tree.html 8KB
package-summary.html 6KB
serialized-form.html 6KB
package-tree.html 6KB
package-summary.html 6KB
package-summary.html 6KB
package-summary.html 6KB
package-tree.html 6KB
package-summary.html 6KB
package-tree.html 6KB
constant-values.html 6KB
package-tree.html 6KB
package-summary.html 6KB
package-summary.html 6KB
package-tree.html 6KB
package-summary.html 6KB
package-summary.html 6KB
package-tree.html 6KB
package-tree.html 6KB
package-tree.html 6KB
package-tree.html 6KB
overview-frame.html 2KB
package-frame.html 1KB
package-frame.html 1KB
package-frame.html 1KB
package-frame.html 1KB
package-frame.html 1019B
package-frame.html 994B
package-frame.html 970B
package-frame.html 958B
package-frame.html 952B
loading.html 415B
index-all.html 0B
mysql.jar 501KB
xdoclet-ejb-module-1.2.3.jar 249KB
xjavadoc-1.5-snapshot050611.jar 230KB
commons-collections-2.1.1.jar 171KB
xdoclet-1.2.3.jar 145KB
commons-dbcp-1.2.2.jar 119KB
xdoclet-jboss-module-1.2.3.jar 116KB
xdoclet-bea-module-1.2.3.jar 103KB
xdoclet-apache-module-1.2.3.jar 95KB
commons-pool-1.4.jar 85KB
xdoclet-web-module-1.2.3.jar 73KB
xdoclet-hibernate-module-1.2.3.jar 56KB
xdoclet-xdoclet-module-1.2.3.jar 55KB
commons-logging.jar 52KB
maven-xdoclet-plugin-1.2.3.jar 45KB
xdoclet-sun-module-1.2.3.jar 32KB
xdoclet-jdo-module-1.2.3.jar 28KB
xdoclet-objectweb-module-1.2.3.jar 22KB
xdoclet-pt_BR-locale-1.2.3.jar 21KB
xdoclet-wsee-module-1.2.3.jar 20KB
xdoclet-ibm-module-1.2.3.jar 18KB
xdoclet-spring-module-1.2.3.jar 18KB
xdoclet-caucho-module-1.2.3.jar 18KB
xdoclet-java-module-1.2.3.jar 17KB
xdoclet-oracle-module-1.2.3.jar 16KB
xdoclet-jsf-module-1.2.3.jar 16KB
xdoclet-mvcsoft-module-1.2.3.jar 15KB
xdoclet-macromedia-module-1.2.3.jar 15KB
xdoclet-orion-module-1.2.3.jar 13KB
xdoclet-mockobjects-module-1.2.3.jar 12KB
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