Only one instance of a Modifier type per Element...

[Mike Edwards <mike_edwards@uk.ibm.com>]

Folks,

Perhaps a strange title, but this is
to tie up a discussion we had during the Java call today.

I confirm that the Java Language Spec
does limit the occurrance of a given annotation on
an element such as a Class declaration
or a Method declaration.

Annotations are a form of Modifier and
the statement about modifiers associated with elements
say things like this:

"A compile-time
error occurs if the same modifier appears more than once in a class declaration."

Language checkers such as the one built
into Eclipse flag an error if you try to annotate a class
declaration with more than one instance
of @Confidentiality, for example.


Yours,  Mike.

Strategist - Emerging Technologies, SCA & SDO.
Co Chair OASIS SCA Assembly TC.
IBM Hursley Park, Mail Point 146, Winchester, SO21 2JN, Great Britain.
Phone & FAX: +44-1962-818014    Mobile: +44-7802-467431  
Email:  mike_edwards@uk.ibm.com

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