void setCachedRowSetWriter(CachedRowSetWriter CRWriter) {
         crw = CRWriter;
    }
This function is package private,
i.e. cannot be accesses outside this package.
This is used to set the handle to the writer object
which will write the resolved values back to datasource
src/main/java/org/replicadb/rowset/sun/rowset/internal/SyncResolverImpl.java