它必须向激活系统(又称激活器(activator))注册一个 激活描述符(activation descriptor) 它必须提供一个特定的 激活构造函数(activation constructor)
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However, you are free to also specify the JNDI name of the destination, in which case, the destination name you specify in the deployment descriptor overrides the one in the activation specification.
然而,您也可以自由指定目的地的JNDI名称,在这种情况下,在部署描述符中指定的目的地名称会覆盖在激活规范中指定的名称。
To listen for the request, the deployment descriptor for the EJB module containing the MDB must define the JMS activation specification and the request queue resources.
为了侦听请求,包含MDB的EJB模块的部署描述符必须定义JMS激活规范和请求队列资源。
The deployment descriptor for the MDB contains a reference to the JMS activation spec (which in turn is associated with the JMS queue we created earlier), as shown in Figure 7.
MDB 的部署描述符包含对 JMS 激活规范(它与我们前面创建的 JMS 队列依次联合)的引用,如图 7 所示。
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