因为不能使用触发器来及时更新空间表，所以需要在定期调度机制中使用批量复制机制。

Since triggers are not available to keep the spatial table up to date, you need to use the bulk copy mechanism as part of regularly scheduled mechanism.

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更新XML名称空间。

Update the XML name space.

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在更新XML名称空间后，生成组成模型应用程序的j2ee类。

After updating the XML name space, generate the J2EE classes that make up the model application.

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