更新CreditHistory导入的限定符，以在异步调用组件时正确地处理事务处理行为。
Update the qualifier for the CreditHistory import to handle proper transactional behavior when invoking a component asynchronously.
例如，可以将连接机制定义为同步或异步的，操作可以为单向的或为请求-响应型，或者可以定义组件间的事务处理行为。
For example, we can define wires to be synchronous or asynchronous, operations to be one-way or request-response, or we can define the transactional behavior between components.
换句话说，如果没有真正的分布式事务处理(在SOA中，跨服务调用使用分布式事务处理并不常见)，您要如何建立事务处理行为。
In other words, how do you establish transactional behavior without having an actual, distributed transaction (using distributed transactions across service invocations is unusual in SOA).
换句话说，如果没有真正的分布式事务处理(在SOA中，跨服务调用使用分布式事务处理并不常见)，您要如何建立事务处理行为。
In other words, how do you establish transactional behavior without having an actual, distributed transaction (using distributed transactions across service invocations is unusual in SOA).
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