J2EE 1.2 USES security roles, whereby the application developer specifies which roles have the authority to access specific methods, and the deployer maps these roles to specific users or user groups.

J2EE 1.2使用安全性角色，凭借这个应用程序开发人员就能指定哪些角色有访问特定方法的权限，并且部署人员将这些角色映射到特定的用户或用户组上。

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In addition, users will now be able to easily filter their streams by specific friends, the type of relationship they have with people (groups), or by the application that generated the update.

此外，用户也可以轻松地过滤他们的信息流，通过指定好友，依据他们与其他人的关系类型(群组)，或凭借该生成“更新”的应用程序来实现。

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For example, let's assume that the application requires three test groups in a specific sequence.

例如，假设应用程序要求3个测试组以某个特定的顺序排列。

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