package easyJ.business.facade;
import easyJ.common.EasyJException;
import java.util.ArrayList;
import easyJ.database.dao.OrderRule;
import easyJ.database.dao.Page;
import easyJ.common.BeanUtil;
import easyJ.database.session.SessionFactory;
import easyJ.database.session.Session;
import easyJ.database.dao.OrderDirection;
public class CompositeDataFacade extends SingleDataFacade {
private static SingleDataFacade sdf = (SingleDataFacade) SingleDataFacade
.getInstance();
private static CompositeDataFacade cdf;
// orderRule用来对明细排序的。这是默认的顺序。
private static OrderRule[] detailOrderRule = {
new OrderRule("sequence", OrderDirection.ASC)
};
public static CommonFacade getInstance() {
if (cdf == null)
cdf = new CompositeDataFacade();
return cdf;
}
public CompositeDataFacade() {}
public Object create(Object o) throws easyJ.common.EasyJException {
Session session = null;
try {
session = SessionFactory.openSession();
Class clazz = o.getClass();
o = session.create(o);
String primaryKeyName = BeanUtil.getPrimaryKeyName(o.getClass());
Object primaryKeyValue = BeanUtil.getPrimaryKeyValue(o);
String[] subClassProperties = BeanUtil.getSubClassProperties(clazz);
for (int i = 0; i < subClassProperties.length; i++) {
String property = subClassProperties[i];
ArrayList propertyValues = (ArrayList) BeanUtil.getFieldValue(
o, property);
for (int j = 0; j < propertyValues.size(); j++) {
Object detail = propertyValues.get(j);
BeanUtil.setFieldValue(detail, primaryKeyName,
primaryKeyValue);
session.create(detail);
}
}
} finally {
if (session != null)
session.close();
}
return o;
}
public void update(Object o) throws easyJ.common.EasyJException {
Session session = null;
try {
session = SessionFactory.openSession();
Class clazz = o.getClass();
session.update(o);
String[] subClassProperties = BeanUtil.getSubClassProperties(clazz);
for (int i = 0; i < subClassProperties.length; i++) {
String property = subClassProperties[i];
ArrayList propertyValues = (ArrayList) BeanUtil.getFieldValue(
o, property);
for (int j = 0; j < propertyValues.size(); j++) {
Object primaryKeyValue = BeanUtil
.getPrimaryKeyValue(propertyValues.get(j));
if (primaryKeyValue != null)
session.update(propertyValues.get(j));
else
session.create(propertyValues.get(j));
}
}
} finally {
if (session != null)
session.close();
}
}
public void delete(Object o) throws easyJ.common.EasyJException {
Session session = null;
try {
session = SessionFactory.openSession();
Class clazz = o.getClass();
session.delete(o);
String[] subClassProperties = BeanUtil.getSubClassProperties(clazz);
for (int i = 0; i < subClassProperties.length; i++) {
String property = subClassProperties[i];
ArrayList propertyValues = (ArrayList) BeanUtil.getFieldValue(
o, property);
for (int j = 0; j < propertyValues.size(); j++)
session.delete(propertyValues.get(j));
}
} finally {
if (session != null)
session.close();
}
}
public Object get(Object o) throws EasyJException {
/* 在此首先要得到主表的数据，然后得到所有从表的数据 */
Class clazz = o.getClass();
o = sdf.get(o);
String primaryKeyName = BeanUtil.getPrimaryKeyName(clazz);
Object primaryKeyValue = BeanUtil.getPrimaryKeyValue(o);
String[] subClassProperties = BeanUtil.getSubClassProperties(clazz);
for (int i = 0; i < subClassProperties.length; i++) {
String property = subClassProperties[i];
String className = BeanUtil.getSubClass(clazz, property);
Object obj = BeanUtil.getEmptyObject(className);
/* 设置子表中对应主表主键的属性值：例如主表的主键是invoiceId，那么在子表中也必须要有这样的一个属性焦作invoiceId */
BeanUtil.setFieldValue(obj, primaryKeyName, primaryKeyValue);
String[] subClassesProperties = null;
try {
subClassesProperties = BeanUtil.getSubClassProperties(obj
.getClass());
} catch (Exception e) {}
ArrayList subClassList = null;
try {
BeanUtil.getField(obj.getClass(), "sequence");
subClassList = sdf.query(obj, detailOrderRule);
} catch (Exception e) {
subClassList = sdf.query(obj);
}
if (subClassesProperties != null) {
for (int j = 0; j < subClassList.size(); j++) {
Object object = get(subClassList.get(j));
subClassList.set(j, object);
}
}
/* 将得到的列表赋值给此属性 */
BeanUtil.setFieldValue(o, property, subClassList);
}
return o;
}
}