use object pools 使用对象池
Apart from implementation details, object pools generally have the interface illustrated in Listing 1.
如果不考虑实现细节，对象池一般采用清单1所示的接口。
To tune performance when using concurrent message delivery, we must turn our attention to a number of object pools managed by the application server.
为了在使用并发消息传递时优化性能，我们必须将注意力转向应用程序服务器托管的许多对象池。
WebSphere Application Server also supports the general concept of object pools, with each pool consisting of a pool manager providing access to pools for different class types.
WebSphere Application Server 还支持对象池的常规概念，每个对象池均具有池管理器，从而为不同类类型提供对象池访问。
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