Set MaxAgeSeconds for subnodes of region

[sgielen]

Is it possible to configure a standard LRU eviction policy so it only evicts subnodes of a region? For example, I have a region \customers and I would like to evict the subnodes created under \customers after 30 seconds, but want to keep the parent \customers node.

I tried numerous things, but it keeps deleting the \customers node (as expected) instead of the individual subnodes.

Is the only way to get this done to configure a region for every subnode created?

[ben.wang]

In eviction policy configuration, you can have nested regions like:

Region I:
/customer

Region II;
/customers/children

and they can have different policy applied to it. Please check the TreeCache documentation (Eviction section) for details.

[sgielen]

I read all the documentation and examples, but am still stuck.

I understand your reply for scenarios where the subnodes are fixed and hence can be configured in a region. But what if the subnodes are created at run-time and can be named anything. As I understand we can't create regions at run-time and configure new subnodes that way.

To use my example again:

At start-up:

/customer

Client adds subnode at run-time:

/customer/cust XYZ

Now I need node 'cust XYZ' to expire after a set period without losing the 'customer' branch (so end up with start-up tree again).

Is that possible?

[sgielen]

Found it!
Problem was that I stored the customer subnodes as key-value pairs. Now that I stored them as nodes the eviction policy keeps track of the subnodes. Doh!