Delete rules determine the persistence of messages in the client message store and the server message store.

Default behavior

A QAnywhere message expires when the expiry time has passed and the message has not been received or transmitted anywhere. After a message expires, it is deleted by the default delete rules. If a message has been received at least once, but not acknowledged, it is possible to receive it again, even if the expiry time passes.

Client delete rules

By default, messages are deleted from the client message store when the status of the message is determined to be received, expired, canceled, or undeliverable and the final state has been transmitted to the server message store. You may want messages to be deleted faster than that, or to hold on to messages longer. You do that by creating a delete section in your client transmission rules file. The delete section must be prefaced by [system:delete].

For more information about acknowledgement, see:

• .NET: AcknowledgementMode enumeration
• C++: AcknowledgementMode class
• Java: Interface AcknowledgementMode

For more information about client transmission rules, see Client transmission rules.

Following is an example of the delete rules section in a client transmission rules file:

[system:delete]

; This rule governs when messages are deleted from the client
; store.
;
;    start time '1:00:00' on ( 'Sunday' )
;
; Messages are deleted every Sunday at 1:00 A.M.
;
;    ias_Status >= ias_FinalState
;
; Typically, messages are deleted when they reach a final
; state: received, unreceivable, expired, or cancelled.

START TIME '1:00:00' ON ( 'Sunday' ) = ias_Status >= ias_FinalState

For an explanation of ias_Status, see Rule variables.

Server delete rules

By default, messages are deleted from the server message store when the status of the message is determined to be received, expired, canceled, or undeliverable and the final state has been transmitted back to the message originator. You may want to keep messages longer for purposes such as auditing.

Server-side delete rules apply to all messages in the server message store.

For more information about server transmission rules, see Server transmission rules.

For an explanation of ias_Status, see Rule variables.