Caused by: java.lang.IllegalArgumentException: can't operate on
multiple entity groups in a single transaction. found both Element {
type: "CityNum"
name: "013001"
}
and Element {
type: "ScheduleProcess"
name: "013001"
}
at
com.google.appengine.api.datastore.DatastoreApiHelper.translateError(DatastoreApiHelper.java:
36)
at com.google.appengine.api.datastore.DatastoreApiHelper
$1.convertException(DatastoreApiHelper.java:98)
at
com.google.appengine.api.utils.FutureWrapper.get(FutureWrapper.java:
69)
at com.google.appengine.api.datastore.FutureHelper
$CumulativeAggregateFuture.get(FutureHelper.java:136)
at com.google.appengine.api.datastore.FutureHelper
$TxnAwareFuture.get(FutureHelper.java:213)
at
com.google.appengine.api.utils.FutureWrapper.get(FutureWrapper.java:
67)
at
com.google.appengine.api.datastore.FutureHelper.getInternal(FutureHelper.java:
71)
at
com.google.appengine.api.datastore.FutureHelper.quietGet(FutureHelper.java:
58)
at
com.google.appengine.api.datastore.DatastoreServiceImpl.get(DatastoreServiceImpl.java:
55)
at
org.datanucleus.store.appengine.RuntimeExceptionWrappingDatastoreService.get(RuntimeExceptionWrappingDatastoreService.java:
64)
... 86 more
实现类代码：
/**
* @see
org.ertuo.taoplugin.facade.TransactionOperation#nestTrans(java.lang.Object[])
*/
public void nestTrans(Object... objects) {
String id = (String) objects[0];
CityNum cn = cityNumDao.get(id);
ScheduleProcess sp = scheduleDao.get(id);
cityNumDao.delete(cn);
scheduleDao.delete(sp);
logger.info("id[" + id + "]对应的城市和任务删除完毕");
}
接口代码：
/**
* 事务性操作接口
* @author mo.duanm
* @version $Id: TransactionOperation.java, v 0.1 2010-12-16 下午
05:22:23 mo.duanm Exp $
*/
public interface TransactionOperation {
/**
* 嵌套事务
* @param objects
*/
@Transactional
public void nestTrans(Object... objects);
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