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1. Expression robot中没有自动transaction控制，即如有需要，请手工添加；
Test Scenario: 在expression中添加了update两笔part attribute的code如下
1 part1 = (WTPart) CustAttributeOperationUtil.setAttributeValue(part1, "customerParts", "SBB03"); 2 PersistenceServerHelper.manager.update(part1); 3 4 part1 = (WTPart) CustAttributeOperationUtil.setAttributeValue(part2, "customerParts", "SBB03"); 5 PersistenceServerHelper.manager.update(part2); 6 throw new WTException("testWFExprRobotTransaction");
结果：当异常发生时，part的customerParts已update生效。
wt.pom.PersistenceException: The commit is mismatched. It corresponds to level "1". Current level is "0"
Manual transaction control in Expression/Synchcronize Robot
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原文地址：http://www.cnblogs.com/windchill-fan/p/4242733.html
