Add macro for validator cache implementation

Most of the validators use a cache. This cache looks the same in
all of the validator classes. In preparation of reduce these code
duplications a macro gets added to the validator base class which
can be used by the derived validator classes.

Change-Id: I5fe8a897f9b36e2a620e657bdd37ae0ea8b62c4c

git-svn-id: https://svn.apache.org/repos/asf/etch/trunk@1679581 13f79535-47bb-0310-9956-ffa450edef68
1 file changed