They can provide an extra level of indirection for messaging applications.
此类目的地可为消息传递应用程序提供额外的间接寻址方式。
EJB references let us use an extra level of indirection between the code and the actual JNDI name of the referenced bean.
EJB引用使得用户可以在代码和引用bean的实际JNDI名称之间使用额外的间接标准。
This extra level of indirection can get in the way when you're trying to profile or otherwise precisely control JVM invocation arguments.
这种更高级别的间接性会在您尝试分析或精细控制JVM调用参数时造成困难。
Using CONSTANT is more risky because if you forget to use the extra level of indirection, you could potentially access the import address table's pointer to the variable - not the variable itself.
使用CONSTANT的风险更大，因为如果忘记使用额外级别的间接寻址，则访问的有可能是指向变量的导入地址表的指针，而不是变量本身。
Using CONSTANT is more risky because if you forget to use the extra level of indirection, you could potentially access the import address table's pointer to the variable - not the variable itself.
使用CONSTANT的风险更大，因为如果忘记使用额外级别的间接寻址，则访问的有可能是指向变量的导入地址表的指针，而不是变量本身。
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