For single source data, standardization of these default values may be through assigned mapping values, against a lookup table, or based on a defined pattern or algorithm within the data.
对于单个源数据，这些默认值的标准化可以通过根据一个查找表或定义好的模式或算法，在数据中指定映射值来完成。
In some cases application-specific caches can be designed in such a way that they lookup the required data from some data source that is transparent to the client.
在某些情况下，特定于应用程序的缓存可以设计为从对客户机透明的某个数据源查找所需的数据。
Typically, in an enterprise application data source objects are retrieved through a JNDI lookup operation.
在一个企业程序中，数据源对象是通过JNDI查找操作来获得的。
You simply have to add a resource reference to this data source for your enterprise application and can use a JNDI lookup to retrieve it.
您仅需要在您的企业应用程序中添加指向该数据源的资源引用，然后使用JNDI查询到该数据源，并得到数据库连接，最后对其进行检索。
This transformation is performed using the relationship service to lookup the correlated data for the pertinent source and target roles. The following diagram depicts the scenario.
使用关系服务执行这个转换，以便为适当的源和目标角色查找相关联的数据。
The JNDI name is the unique identifier your code will use to lookup the data source; this article's example code uses jdbc/OracleXADS.
JNDI名是您的代码用来查找数据源的唯一标识符。本文的范例代码使用jdbc/OracleXADS 作为 JNDI 名。
You will uncomment the url property again once you are convinced that the application server is using the JNDI name to lookup the data source.
确定应用服务器在使用JNDI名称查找数据源后，将再次取消注释URL属性。
You will uncomment the url property again once you are convinced that the application server is using the JNDI name to lookup the data source.
确定应用服务器在使用JNDI名称查找数据源后，将再次取消注释URL属性。
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