org.beangle.commons.transfer.importer.listener

Class ImporterForeignerListener

java.lang.Object

org.beangle.commons.transfer.importer.listener.ItemImporterListener

org.beangle.commons.transfer.importer.listener.ImporterForeignerListener

All Implemented Interfaces:

TransferListener

public class ImporterForeignerListener
extends ItemImporterListener

导入数据外键监听器
这里尽量使用entityDao，因为在使用entityService加载其他代码时，jpa会保存还未修改外的"半成对象"
从而造成有些外键是空对象的错误
如果外键不存在，则目标中的外键会置成null；
如果外键是空的，那么目标的外键取决于importer.isIgnoreNull取值

Version:

$Id: $

Author:

chaostone

Field Summary

Fields

Modifier and Type	Field and Description
protected EntityDao	entityDao
protected Map<String,Map<String,Object>>	foreigersMap

Fields inherited from class org.beangle.commons.transfer.importer.listener.ItemImporterListener

importer

Constructor Summary

Constructors

Constructor and Description
ImporterForeignerListener(EntityDao entityDao) Constructor for ImporterForeignerListener.

Method Summary

Modifier and Type	Method and Description
void	addForeigerKey(String key) addForeigerKey.
void	onItemFinish(TransferResult tr) 结束转换单个项目
void	onStart(TransferResult tr) 开始转换

Methods inherited from class org.beangle.commons.transfer.importer.listener.ItemImporterListener

onFinish, onItemStart, setTransfer

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

entityDao

protected EntityDao entityDao

foreigersMap

protected Map<String,Map<String,Object>> foreigersMap

Constructor Detail

ImporterForeignerListener

public ImporterForeignerListener(EntityDao entityDao)

Constructor for ImporterForeignerListener.

Parameters:

entityDao - a EntityDao object.

Method Detail

onStart

public void onStart(TransferResult tr)

开始转换

Specified by:

onStart in interface TransferListener

Overrides:

onStart in class ItemImporterListener

Parameters:

tr - a TransferResult object.

onItemFinish

public void onItemFinish(TransferResult tr)

结束转换单个项目

Specified by:

onItemFinish in interface TransferListener

Overrides:

onItemFinish in class ItemImporterListener

Parameters:

tr - a TransferResult object.

addForeigerKey

public void addForeigerKey(String key)

addForeigerKey.

Parameters:

key - a String object.