The resource adapter might use this method to check that numeric properties are within the acceptable range or to ensure that a string property representing a value from an enumeration is valid.
资源适配器可能用这个方法检查算术属性是否在可以接受的范围之内，或者确保表示枚举值的字符串有效。
If you choose this method, make sure that you only choose the E-mail that has been identified as valid; try the filtering solution (see the Using standard filtering tools section).
如果您选择使用这种方法，那么请确保您只选择已经标识为有效的电子邮件；尝试这种过滤解决方案(请参见使用标准的过滤工具部分)。
This method can also be overridden in a multiple database solution to return a valid view instance of the appropriate home Notes database or equivalent to the database name.
在多数据库解决方案中，还可以覆盖该方法来返回主要Notes数据库实例的一个有效视图实例，或者数据库名的等同物。
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