它为超过55个不同类型的数据源提供访问点。
It provides access points for over fifty different data sources of various types.
数据源提供到基础数据库的连接属性，以及连接池机制。
A data Source provides the connection properties to the underlying database along with connection pooling mechanisms.
它还通过向各种目标数据源提供一致的规范来简化程序设计模型。
It also simplifies the programming model by providing consistent specifications to various target data sources.
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