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Aditya Vasudeva
Ranch Hand
Posts: 76
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What does "using @Resource at the class level mean"?

That is, when this annotation is used as a @TARGET-field, it says that to look up a resource in a helper class, we have to use JNDI.

Also, what is a helper class? And, when @Resource is used for setter or getter methods, is the actual resource we want to inject obtained through the arguments/return-types?

This is described in EJB3 in Action on page 150.

Also, what does the @Target annotation do? What does:

@Target({TYPE,METHOD,FIELD}) mean??
 
jonas stock
Greenhorn
Posts: 2
 
It is sorta covered in the JavaRanch Style Guide.
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