问题
Is it possible in OQL to retrieve all the objects that belongs to a package? Or can I query with wildcards?
As @haridsv suggested I tried:
SELECT * from "com.example.*"
and
SELECT a from "com\.example\..*"
but in VisualVM it complaints that no such package exists.
Even
SELECT a from "java.io.File" a
Fails.
Thanks!
ssedano.
回答1:
I found the answer in VisualVM OQL help.
select filter(heap.classes(), "/com.example./(it.name)")
回答2:
You can use regular expression like this:
SELECT * from "<packagename>.*"
If the package name is "java.io" you would use:
SELECT * from "java\.io\..*"
Note the quotes around the regex and how the dots in the path are protected.
来源：https://stackoverflow.com/questions/12385185/oql-all-instances-from-a-package