事务界定是定义事务边界的方式。
Transaction demarcation is the manner in which transaction boundaries are defined.
可以使用这个新限定词控制事务边界。
You can use this new qualifier to control transaction boundaries.
连接集中器的工作取决于事务边界(提交和回滚)。
Connection concentrator ACTS upon transaction boundaries (commit and rollback).
考虑到工作单元的范围和事务边界的划分，有3中模式。
Regarding the scope of unit of work and transaction boundary demarcation, there are 3 patterns.
获得事务边界接口。
如先前所讨论，Send服务应在单独的事务边界中调用。
As I discussed earlier, the Send service should be invoked in a separate transaction boundary.
在考虑/设置事务边界时，当然将需要了解应用程序中的交互。
You will certainly need to understand the interactions in your application when you consider/set your transaction boundaries.
在事务边界(提交或回滚)的末尾，数据库代理与应用程序分离。
At the end of the transaction boundary (commit or rollback), the database agent is disassociated with the application.
不可中断流的缺省情况下，所有活动都在相同的事务边界内执行。
In the case of non-interruptible flows, by default, all activities are executed within the same transaction boundary.
可以在工具中修改事务边界来将业务流程中的多个步骤集中到一个事务。
You can modify transaction boundaries in the tooling to group multiple steps in a business process into one transaction.
定义服务边界的潜在困难的一个有意思的例子就是在何处设置事务边界。
An interesting example of the potential difficulties in defining service boundaries is where to set transactional boundaries.
开发人员负责确定导致定义事务边界和使用不同交互风格的实现和限定符。
The developer is responsible for deciding on the implementation and the qualifiers that result in transactional boundaries being defined and different styles of interaction being used.
由于种种原因，可以将设置最优事务边界视为流程实现的关键性能方面之一。
Setting the optimal transaction boundaries may be considered as one of the key performance aspects for process implementations for different reasons.
Version7增强了这个功能，可以显示事务边界，即使它们是跨模块的。
Version 7 enhances this capability by enabling you to visualize transaction boundaries, even if they cross modules.
容器通过事务边界和部署描述符表示了事务模型，并在运行时控制事务的提交和回滚。
The container infers the transaction model from the method boundaries and deployment descriptor, and controls the transaction commits and rollbacks at runtime.
当请求进入时，事务边界会被创建，随后会在响应被发送之前进行事务提交。
The transaction boundaries will be created when the request comes in and the commit will happen just before the response goes out.
实体e JB组件从未打算成为可序列化的以供在容器和事务边界范围之外进行高效利用。
Entity EJB components were never intended to be serializable for efficient usage outside of the scope of the container or transaction boundary.
这样会导致到达事务边界时的代理分配和解除分配这一巨大开销，这会影响连接集中器的功能。
This will create a large overhead of allocation and deallocation of agents upon reaching transaction boundaries, which defeats the purpose of the connection concentrator.
启用了连接集中器之后，一旦到达事务边界，db2agent就是自由的，可以服务于其他请求。
With connection concentrator enabled, upon reaching transaction boundaries, the db2agent is free and ready to service other requests.
请注意，我倾向于由 CustomerSessionbean 负责为所有所操作控制事务边界。
Note that I've already opted to let the CustomerSession bean control the transaction boundaries for all the operations.
从操作角度而言，这一点非常重要，因为流程中的错误可能出现在不同位置，具体取决于事务边界和涉及的协议。
From an operational perspective, this is quite important because depending on the transactional boundaries and the involved protocols, errors in processes can surface at different places.
ActivitySession：它提供了一种扩展事务边界和通过这些新边界指定ejb的激活和钝化的方法。
ActivitySession: it provides both a way to extend transaction boundaries beyond method invocation and to specify EJB activation and passivation by means of these new boundaries.
该代码在一个Web应用程序(Servlet)中，或者位于在全局事务边界内未执行的EJB方法中。
This code is either in a Web application (servlet) or in an EJB method that is not executed in a global transaction boundary.
EJB上的每个公共方法都定义了ejb容器和EJB客户端之间的事务边界，并在部署描述符指定该边界。
Every public method on an EJB defines a transactional boundary between the EJB container and the EJB client, as specified in the deployment descriptor.
而可中断流用于描绘长期运行的程序，它可以具有多个Receive活动，且每个活动都具有其单独的事务边界。
On the other hand, interruptible flows are used to represent long-running processes, and can have multiple Receive activities with separate transaction boundaries for each activity.
因为获得的锁不会跨事务边界存在，所以import工具将失去它的IX表锁，并且必须在每次提交之后请求另一个锁。
Because the acquired lock does not persist across transaction boundaries, the import utility loses its IX table lock and must request another lock after each commit.
一个可能的原因是自由管理程序想要避免那种情况，在那种情况下，如果跨事务边界保持结果集，就必须要保持某些资源锁。
One possible reason is that the resource manager wants to avoid the situation, where it has to hold some resource locks if the result set is held across the transaction boundaries.
在这个例子中，我们不会手动指定事务的边界。
We do not have to specify transaction boundaries manually in this example.
它在基于资源管理器的本地事务的边界方法之外提供了一个扩展的工作单元作用域。
It provides an extended unit-of-work scope beyond the method boundary for local transaction based resource managers.
在某一流程中的事务属性和边界将根据发生在单个服务调用/事务时的错误进行分析。
Transaction attributes and boundaries in a process are to analyzed in the light of errors that can be expected from individual service invocations/transactions.
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