dbHasValidHierCache

dbHasValidHierCache(
d_cvId
) 
=> t / nil

Checks whether the specified cellview has a valid hierarchical cache file.

d_cvId

Database ID of the cellview to be checked for a hierarchical cache.

`t`	The cellview has a hierarchical cache file.
`nil`	The cellview does not have a hierarchical cache file.

Checks whether the cellview has a hierarchical cache file before the cache file has been created.

cv = dbOpenCellViewByType("test" "hierTop" "layout" "maskLayout" "a")

dbSetHierCacheUsage("saveAndLoad" cv)

dbHasValidHierCache(cv)

=> nil

Checks whether the cellview has a hierarchical cache file after the file has been created.

dbSave(cv)

dbHasValidHierCache(cv)

=> t