[rules-users] Better way to write a constrained collect?

[David Sinclair]

I have the when part of a rule

Cluster($ipAddressCollection : ipAddressCollection != null)
$ipAddressUsage : IPAddressUsage(guid in
(IPAddressUsage.CUSTOMER_MANAGEMENT,

IPAddressUsage.CUSTOMER_BACKUP,

IPAddressUsage.CUSTOMER_PRODUCTION,

IPAddressUsage.CUSTOMER_HEARTBEAT))
java.util.LinkedList(size == 0) from collect( IPAddress(ipAddressUsage ==
$ipAddressUsage) from $ipAddressCollection.ipAddresses)

This works fine, but I would like to constrain the IPAddress's usage within
the collect, as opposed to joining.

Anyone know if this is possible?

thanks

dave
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