在Grails中Service層默認(rèn)就是支持事務(wù)的,事務(wù)傳播級(jí)別默認(rèn)是PROPAGATION_REQUIRED. 當(dāng)然你也可以設(shè)置transactional = false.
如果transactional 設(shè)置為true, 則在Service層如何方法內(nèi)部拋出RuntimeException類型異常, 所有操作將會(huì)回滾.
class UserService {
boolean transactional = true
public boolean register(User user, UserInfo userInfo) throws RuntimeException {
if (user.save()) {
userInfo.user = user
if (userInfo.save()) {
return true
} else {
throw new RuntimeException ('ServiceException: UserService.register()...');
}
} else {
throw new RuntimeException ('ServiceException: UserService.register()...');
}
}
}
這樣不管哪個(gè)保存失敗, 數(shù)據(jù)都將會(huì)回滾!
posted on 2008-07-21 21:29
周銳 閱讀(1705)
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