The best place to put the global parameter

hello:
i am now studying the petstore1.3,and find that the global parameters are kept in the servlet context,i wonder if it is a good solution.in my project,i seldom use the servlet context,session context etc,i feel more like to put the global parameter in a singleton that is loaded when the app is started. i don't know where is the best place to put the global parameter,servlet context or singleton?

thanks for your answer.
1 do your mean that the singleton can be shared among the different "war"
packages if both of them are within the same jvm?if yes,must they be in the
same "ear" package?
2 if my app is deployed in the weblogic cluster environment,which one can be
shared? singleton or servlet context?

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